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  • BD4730G-TR图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • BD4730G-TR 现货库存
  • 数量6980 
  • 厂家ROHM 
  • 封装SOT23-5 
  • 批号22+ 
  • 新到现货、一手货源、当天发货、bom配单
  • QQ:2881512844QQ:2881512844 复制
  • 075584507705 QQ:2881512844
  • BD4730G-TR图
  • 深圳市芯鹏泰科技有限公司

     该会员已使用本站8年以上
  • BD4730G-TR
  • 数量7536 
  • 厂家Rohm Semiconductor 
  • 封装5-SSOP 
  • 批号23+ 
  • PMIC监控器IC原装现货
  • QQ:892152356QQ:892152356 复制
  • 0755-82777852 QQ:892152356
  • BD4730G-TR图
  • 深圳市硅诺电子科技有限公司

     该会员已使用本站8年以上
  • BD4730G-TR
  • 数量37856 
  • 厂家ROHM 
  • 封装SOT-153 
  • 批号17+ 
  • 原厂指定分销商,有意请来电或QQ洽谈
  • QQ:1091796029QQ:1091796029 复制
    QQ:916896414QQ:916896414 复制
  • 0755-82772151 QQ:1091796029QQ:916896414
  • BD4730G-TR图
  • 深圳市恒达亿科技有限公司

     该会员已使用本站12年以上
  • BD4730G-TR
  • 数量3200 
  • 厂家ROHM 
  • 封装SOT153 
  • 批号23+ 
  • 全新原装公司现货销售!
  • QQ:867789136QQ:867789136 复制
    QQ:1245773710QQ:1245773710 复制
  • 0755-82772189 QQ:867789136QQ:1245773710
  • BD4730G-TR图
  • 现代芯城(深圳)科技有限公司

     该会员已使用本站15年以上
  • BD4730G-TR
  • 数量78000 
  • 厂家一级代理 
  • 封装一级代理 
  • 批号一级代理 
  • 一级代理正品采购
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    QQ:3007226849QQ:3007226849 复制
  • 0755-82542579 QQ:3007226851QQ:3007226849
  • BD4730G-TR图
  • 深圳市得捷芯城科技有限公司

     该会员已使用本站11年以上
  • BD4730G-TR
  • 数量2616 
  • 厂家ROHM/罗姆 
  • 封装NA/ 
  • 批号23+ 
  • 优势代理渠道,原装正品,可全系列订货开增值税票
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    QQ:3007947087QQ:3007947087 复制
  • 0755-82546830 QQ:3007977934QQ:3007947087
  • BD4730G-TR图
  • 深圳市华科泰电子商行

     该会员已使用本站13年以上
  • BD4730G-TR
  • 数量840000 
  • 厂家ROHM 
  • 封装SOT153 
  • 批号2001 
  • 绝对原装现货特价
  • QQ:405945546QQ:405945546 复制
    QQ:1439873477QQ:1439873477 复制
  • 0755-82567800 QQ:405945546QQ:1439873477
  • BD4730G-TR图
  • 深圳市拓亿芯电子有限公司

     该会员已使用本站12年以上
  • BD4730G-TR
  • 数量9800 
  • 厂家ROHM/罗姆 
  • 封装SOT23-5 
  • 批号23+ 
  • 进口原装原盘原标签假一赔十
  • QQ:2103443489QQ:2103443489 复制
    QQ:2924695115QQ:2924695115 复制
  • 0755-82702619 QQ:2103443489QQ:2924695115
  • BD4730G-TR图
  • 深圳市欧立现代科技有限公司

     该会员已使用本站12年以上
  • BD4730G-TR
  • 数量9812 
  • 厂家ROHM 
  • 封装SOT-153 
  • 批号24+ 
  • 全新原装现货,欢迎询购!
  • QQ:1950791264QQ:1950791264 复制
    QQ:221698708QQ:221698708 复制
  • 0755-83222787 QQ:1950791264QQ:221698708
  • BD4730G-TR图
  • 深圳市华斯顿电子科技有限公司

     该会员已使用本站16年以上
  • BD4730G-TR
  • 数量12500 
  • 厂家ROHM 
  • 封装SOT23-5 
  • 批号2023+ 
  • 绝对原装全新正品现货/优势渠道商、原盘原包原盒
  • QQ:364510898QQ:364510898 复制
    QQ:515102657QQ:515102657 复制
  • 0755-83777708“进口原装正品专供” QQ:364510898QQ:515102657
  • BD4730G-TR/BL1926图
  • 北京首天国际有限公司

     该会员已使用本站16年以上
  • BD4730G-TR/BL1926
  • 数量274850 
  • 厂家ROHM 
  • 封装SOT-153 
  • 批号2024+ 
  • 百分百原装正品,现货库存
  • QQ:528164397QQ:528164397 复制
    QQ:1318502189QQ:1318502189 复制
  • 010-62565447 QQ:528164397QQ:1318502189
  • BD4730G-TR图
  • 北京齐天芯科技有限公司

     该会员已使用本站15年以上
  • BD4730G-TR
  • 数量10000 
  • 厂家ROHM 
  • 封装SOT-153 
  • 批号2024+ 
  • 原装正品,假一罚十
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    QQ:1344056792QQ:1344056792 复制
  • 010-62104931 QQ:2880824479QQ:1344056792
  • BD4730G-TR图
  • 深圳市富科达科技有限公司

     该会员已使用本站13年以上
  • BD4730G-TR
  • 数量28859 
  • 厂家ROHM 
  • 封装SOT153 
  • 批号2020+ 
  • 绝对全新原装进口现货热卖,价格优势
  • QQ:1327510916QQ:1327510916 复制
    QQ:1220223788QQ:1220223788 复制
  • 0755-28767101 QQ:1327510916QQ:1220223788
  • BD4730G-TR图
  • 北京元坤伟业科技有限公司

     该会员已使用本站17年以上
  • BD4730G-TR
  • 数量5000 
  • 厂家ROHM Semiconductor 
  • 封装贴/插片 
  • 批号2024+ 
  • 百分百原装正品,现货库存
  • QQ:857273081QQ:857273081 复制
    QQ:1594462451QQ:1594462451 复制
  • 010-62104791 QQ:857273081QQ:1594462451
  • BD4730G-TR图
  • 深圳市拓亿芯电子有限公司

     该会员已使用本站12年以上
  • BD4730G-TR
  • 数量30000 
  • 厂家ROHM 
  • 封装SOT23-5 
  • 批号23+ 
  • 代理全新原装现货,价格优势
  • QQ:1774550803QQ:1774550803 复制
    QQ:2924695115QQ:2924695115 复制
  • 0755-82777855 QQ:1774550803QQ:2924695115
  • BD4730G-TR图
  • 深圳市福田区恒科电子商行

     该会员已使用本站2年以上
  • BD4730G-TR
  • 数量47383 
  • 厂家ROHM/罗姆 
  • 封装SOT23-5 
  • 批号23+ 
  • 原装现货实单可谈样品可出
  • QQ:2885433641QQ:2885433641 复制
    QQ:360990916QQ:360990916 复制
  • -0755-83981760 QQ:2885433641QQ:360990916
  • BD4730G-TR图
  • 深圳市惊羽科技有限公司

     该会员已使用本站11年以上
  • BD4730G-TR
  • 数量9328 
  • 厂家ROHM-罗姆 
  • 封装TSSOP-5 
  • 批号▉▉:2年内 
  • ▉▉¥4.6元一有问必回一有长期订货一备货HK仓库
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  • 131-4700-5145---Q-微-恭-候---有-问-秒-回 QQ:43871025
  • BD4730G-TR图
  • 深圳市芯福林电子有限公司

     该会员已使用本站15年以上
  • BD4730G-TR
  • 数量98500 
  • 厂家ROHM 
  • 封装SOT23-5 
  • 批号23+ 
  • 真实库存全新原装正品!代理此型号
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  • BD4730G-TR图
  • 深圳市华芯盛世科技有限公司

     该会员已使用本站13年以上
  • BD4730G-TR
  • 数量865000 
  • 厂家ROHM/罗姆 
  • 封装21+ 
  • 批号最新批号 
  • 一级代理,原装特价现货!
  • QQ:2881475757QQ:2881475757 复制
  • 0755-83225692 QQ:2881475757
  • BD4730G-TR TEL图
  • 北京元坤伟业科技有限公司

     该会员已使用本站17年以上
  • BD4730G-TR TEL
  • 数量5000 
  • 厂家ROHM 
  • 封装SSOP5 
  • 批号2024+ 
  • 百分百原装正品,现货库存
  • QQ:857273081QQ:857273081 复制
    QQ:1594462451QQ:1594462451 复制
  • 010-62104931 QQ:857273081QQ:1594462451
  • BD4730G-TR图
  • 深圳市毅创腾电子科技有限公司

     该会员已使用本站16年以上
  • BD4730G-TR
  • 数量770 
  • 厂家ROHM/原装 
  • 封装SOT-153 
  • 批号22+ 
  • ★只做原装★正品现货★原盒原标★
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  • 86-0755-83210909 QQ:2355507165QQ:2355507162
  • BD4730G-TR图
  • 深圳市三得电子有限公司

     该会员已使用本站15年以上
  • BD4730G-TR
  • 数量91752 
  • 厂家ROHM/罗姆 
  • 封装SSOP5 
  • 批号2024 
  • 深圳原装现货库存,欢迎咨询合作
  • QQ:414322027QQ:414322027 复制
    QQ:565106636QQ:565106636 复制
  • 13509684848 QQ:414322027QQ:565106636
  • BD4730G-TR图
  • 深圳市芯福林电子有限公司

     该会员已使用本站15年以上
  • BD4730G-TR
  • 数量85000 
  • 厂家ROHM/罗姆 
  • 封装21+ 
  • 批号23+ 
  • 真实库存全新原装正品!代理此型号
  • QQ:2881495753QQ:2881495753 复制
  • 0755-23605827 QQ:2881495753
  • BD4730G-TR图
  • 深圳市正纳电子有限公司

     该会员已使用本站15年以上
  • BD4730G-TR
  • 数量26700 
  • 厂家Rohm(罗姆) 
  • 封装▊原厂封装▊ 
  • 批号▊ROHS环保▊ 
  • 十年以上分销商原装进口件服务型企业0755-83790645
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  • 755-83790645 QQ:2881664479
  • BD4730G-TR图
  • 深圳市宏世佳电子科技有限公司

     该会员已使用本站13年以上
  • BD4730G-TR
  • 数量5185 
  • 厂家ROHM 
  • 封装SOT23-5 
  • 批号2023+ 
  • 全新原厂原装产品、公司现货销售
  • QQ:2881894392QQ:2881894392 复制
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  • 0755- QQ:2881894392QQ:2881894393
  • BD4730G-TR图
  • 深圳市芳益电子科技有限公司

     该会员已使用本站10年以上
  • BD4730G-TR
  • 数量1450 
  • 厂家ROHM 
  • 封装SOT-23-5 
  • 批号2023+ 
  • 原装现货大量库存 低价出售 欢迎加Q详谈
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  • 0755-13631573466 QQ:498361569QQ:389337416
  • BD4730G-TR图
  • 深圳市亿智腾科技有限公司

     该会员已使用本站8年以上
  • BD4730G-TR
  • 数量18560 
  • 厂家ROHM 
  • 封装SOT23-5 
  • 批号16PB 
  • 假一赔十★全新原装现货★★特价供应★工厂客户可放款
  • QQ:799387964QQ:799387964 复制
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  • 0755-82566711 QQ:799387964QQ:2777237833
  • BD4730G-TR图
  • 深圳市惠诺德电子有限公司

     该会员已使用本站7年以上
  • BD4730G-TR
  • 数量29500 
  • 厂家Rohm Semiconductor 
  • 封装IC SUPERVISOR 1 CHANNEL 5SSOP 
  • 批号21+ 
  • 只做原装现货代理
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  • 159-7688-9073 QQ:1211267741QQ:1034782288
  • BD4730G-TR图
  • 深圳市鹏和科技有限公司

     该会员已使用本站16年以上
  • BD4730G-TR
  • 数量4000 
  • 厂家ROHM 
  • 封装ROHM 
  • 批号22+ 
  • 只做原装现货 支持实单
  • QQ:604309946QQ:604309946 复制
    QQ:1261585635QQ:1261585635 复制
  • 755-83990319 QQ:604309946QQ:1261585635
  • BD4730G-TR图
  • 万三科技(深圳)有限公司

     该会员已使用本站2年以上
  • BD4730G-TR
  • 数量660000 
  • 厂家ROHM(罗姆) 
  • 封装原厂原装 
  • 批号23+ 
  • 支持实单/只做原装
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  • 0755-21006672 QQ:3008961398

产品型号BD4730G-TR的概述

芯片BD4730G-TR的概述 芯片BD4730G-TR是一款高性能的线性稳压器,广泛应用于各种电子设备的电源管理中。它提供了一定范围内的输出电压,并以高效率和低噪声的特点闻名。这款芯片适用于移动设备、便携式电子产品以及其他需要稳定电源的应用。其优秀的电源管理能力能够有效提高系统的整体性能和稳定性,为用户提供可靠的电源解决方案。 BD4730G-TR在设计时考虑到了多种使用场景,提供了多种功能,具备过压保护、过流保护和温度保护等特性。此外,BD4730G-TR的外部元件数量相对较少,使其在实际应用中具有较好的灵活性和可扩展性。 芯片BD4730G-TR的详细参数 BD4730G-TR具有如下重要参数: - 输入电压范围:该芯片的输入电压范围通常为2.5V至16V。 - 输出电压:其输出电压范围是1.8V至3.3V,支持多种数字电路的需求。 - 输出电流:BD4730G-TR的最大输出电...

产品型号BD4730G-TR的Datasheet PDF文件预览

Datasheet  
Voltage Detector IC Series  
Bipolar  
Voltage Detector ICs  
BD47xx series  
General Description  
Key Specifications  
The BD47xx series is  
a
Voltage Detector IC,  
¢ Detection voltage range:  
1.9V to 4.6V (Typ.)  
0.1V steps  
developed to prevent system errors at transient state,  
when the power of CPU or logic circuit switches  
ON/OFF or in cases of momentary shut down. These  
ICs consist of three terminals (power supply, GND and  
reset output) to detect power supply voltages and  
outputs reset signals of various systems. These ICs  
are ultra-compact and have low current consumption,  
making them ideal for portable products.  
¢ High accuracy detection voltage:  
¢ Low current consumption:  
±1%  
1.6µA (Typ.)  
-40°C to +75°C  
¢ Operating temperature range:  
Package  
SSOP5  
2.90mm x 2.80mm x 1.25mm  
Applications  
Features  
Circuits using microcontrollers or logic circuits that require  
a reset.  
¢ High accuracy detection  
¢ Low current consumption  
¢ Very small package  
¢ Open collector “L” reset output  
¢ Package SSOP5 is similar to SOT-23-5 (JEDEC)  
Typical Application Circuit  
VDD  
VDD  
RL  
CL  
CPU  
Micro-controller  
BD47xx series  
VOUT  
GND  
RESET  
GND  
Connection Diagram  
Pin Descriptions  
SSOP5  
TOP VIEW  
VDD  
PIN No.  
Symbol  
N.C.  
Function  
Unconnected Terminal  
Substrate*  
VOUT  
1
2
3
4
5
SUB  
GND  
VOUT  
VDD  
GND  
Reset Output  
Lot. No  
Marking  
Power Supply Voltage  
N.C. SUB GND  
*Substrate Pin should be connected with GND  
Product structureSilicon monolithic integrated circuit This product is not designed for protection against radioactive rays  
.www.rohm.com  
TSZ02201-0R7R0G300020-1-2  
22.May.2013 Rev.006  
© 2013 ROHM Co., Ltd. All rights reserved.  
1/10  
TSZ2211114001  
Datasheet  
BD47xx series  
Ordering Information  
B D  
4
7
x
x
G
-
T
R
Part  
Number  
Reset Voltage Value Package  
G : SSOP5  
0.1V step  
Packaging and  
19 : 1.9V  
forming specification  
TR : Embossed tape  
and reel  
46 : 4.6V  
(SOT-23-5)  
SSOP5  
<Tape and Reel information>  
°
°
+
2.9±0.2  
6
°
4
Tape  
Embossed carrier tape  
3000pcs  
4  
5
4
Quantity  
TR  
Direction  
of feed  
The direction is the 1pin of product is at the upper right when you hold  
reel on the left hand and you pull out the tape on the right hand  
(
)
1
2
3
1pin  
+0.05  
0.03  
0.13  
S
+0.05  
0.04  
0.42  
0.1  
0.95  
S
Direction of feed  
Reel  
Order quantity needs to be multiple of the minimum quantity.  
(Unit : mm)  
Lineup  
Detection  
Voltage  
4.6V  
Detection  
Voltage  
3.6V  
Detection  
Marking  
Part Number Marking  
Part Number  
Marking  
Part Number  
Voltage  
2.6V  
2.5V  
2.4V  
2.3V  
2.2V  
2.1V  
2.0V  
1.9V  
B2  
B1  
BD4746  
BD4745  
BD4744  
BD4743  
BD4742  
BD4741  
BD4740  
BD4739  
BD4738  
BD4737  
BR  
BQ  
BP  
B4  
BN  
BM  
BL  
BK  
BJ  
BD4736  
BD4735  
BD4734  
BD4733  
BD4732  
BD4731  
BD4730  
BD4729  
BD4728  
BD4727  
BH  
BG  
BF  
BE  
BD  
BC  
BB  
BA  
BD4726  
BD4725  
BD4724  
BD4723  
BD4722  
BD4721  
BD4720  
BD4719  
4.5V  
3.5V  
BZ  
BY  
BX  
BW  
BV  
BU  
BT  
BS  
4.4V  
3.4V  
4.3V  
3.3V  
4.2V  
3.2V  
4.1V  
3.1V  
4.0V  
3.0V  
3.9V  
2.9V  
3.8V  
2.8V  
3.7V  
B3  
2.7V  
www.rohm.com  
TSZ02201-0R7R0G300020-1-2  
22.May.2013 Rev.006  
© 2013 ROHM Co., Ltd. All rights reserved.  
2/10  
TSZ2211115001  
Datasheet  
BD47xx series  
Absolute maximum ratings  
Parameter  
Symbol  
VDD  
Limit  
-0.3 to +10  
-0.3 to +10  
60  
Unit  
Power Supply Voltage  
Output Voltage  
V
V
VOUT  
Output Current  
Io  
mA  
mW  
°C  
°C  
Power Dissipation *1 *2  
Pd  
540  
Operation Temperature Range  
Topt  
Tstg  
-40 to +75  
-55 to +125  
Ambient Storage Temperature  
*1 Reduced by 5.4mW/°C when used over 25°C.  
*2 When mounted on ROHM standard circuit board (70mm×70mm×1.6mm, glass epoxy board).  
Electrical characteristics (Unless Otherwise Specified Ta=25°C)  
Limit  
Typ.  
Parameter  
Symbol  
Condition  
VDD=HL RL=4.7kΩ  
Unit  
Min.  
VDET (T)  
×0.99  
2.475  
2.418  
2.404  
2.970  
2.901  
2.885  
3.267  
3.191  
3.173  
4.158  
4.061  
4.039  
Max.  
VDET(T)  
×1.01  
2.525  
2.584  
2.597  
3.030  
3.100  
3.117  
3.333  
3.410  
3.428  
4.242  
4.341  
4.364  
VDET(T)  
Ta=+25°C  
2.5  
-
-
3.0  
-
-
3.3  
-
-
4.2  
-
VDET=2.5V  
VDET=3.0V  
VDET=3.3V  
VDET=4.2V  
Ta=-40°C to 85°C  
Ta=85°C to 105°C  
Ta=+25°C  
Ta=-40°C to 85°C  
Ta=85°C to 105°C  
Ta=+25°C  
Ta=-40°C to 85°C  
Ta=85°C to 105°C  
Ta=+25°C  
Ta=-40°C to 85°C  
Ta=85°C to 105°C  
Detection Voltage  
VDET  
V
-
Temperature Coefficient  
Of Detection Voltage  
VDET/T RL=4.7kTa=-20 to+75°C Designed Guarantee  
-
±0.01  
-
%/°C  
Detection Hysteresis Voltage VDET RL=4.7k, VDD=LHL  
30  
50  
20  
100  
50  
mV  
µs  
µs  
V
*1  
Transfer Delay Time H”  
Transfer Delay Time L”  
Reset Output Voltage L”  
Circuit Current ON  
tPLH  
tPHL  
VOL  
Icc1  
Icc2  
VOPL  
Ileak  
IOL  
CL=100pFRL=4.7kΩ  
CL=100pFRL=4.7kΩ  
-
*2  
-
60  
120  
0.4  
3.0  
3.2  
0.85  
0.1  
-
VDD=VDET(min.)-0.05V, RL=4.7kΩ  
VDD=VDET(min.)-0.05V, RL=∞  
VDD=VDET(typ.)/0.85V, RL=∞  
RL=4.7kVOL0.4V  
-
0.1  
1.5  
1.6  
0.65  
-
-
µA  
µA  
V
Circuit Current OFF  
-
-
Operating Voltage Range  
Output Leak Current  
VDD=VOUT=10V  
-
µA  
mA  
Reset Output Current L”  
Vo=0.4V, VDD=VDET(min.)-0.05V  
3.0  
15.0  
VDET(T):Standard Detection Voltage(1.9V to 4.6V, 0.1V step)  
R:Pull-up resistor to be connected between VOUT and power supply.  
CL:Capacitor to be connected between VOUT and GND.  
*1 tPLH:VDD=(VDET(typ.)-0.4V)(VDET(typ.)+0.4V)  
*2 tPHL:VDD=(VDET(typ.)+0.4V)(VDET(typ.)-0.4V)  
Design Guarantee. (Outgoing inspection is not done on all products)  
www.rohm.com  
TSZ02201-0R7R0G300020-1-2  
22.May.2013 Rev.006  
© 2013 ROHM Co., Ltd. All rights reserved.  
3/10  
TSZ2211115001  
Datasheet  
BD47xx series  
Block Diagram  
VDD  
5
4
V
OUT  
Vref  
3
GND  
Fig.1 BD47xx series  
www.rohm.com  
© 2013 ROHM Co., Ltd. All rights reserved.  
TSZ2211115001  
TSZ02201-0R7R0G300020-1-2  
22.May.2013 Rev.006  
4/10  
Datasheet  
BD47xx series  
Typical Performance Curves  
800  
700  
600  
500  
400  
300  
200  
100  
0
10  
9
8
7
6
5
4
3
2
BD4729】  
BD4729】  
I
OL=12.194mA at Vo=400mV  
Icc1=1.34µA  
Icc2=1.46µA  
1
0
0
1
2
3
4
5
6
7
8
9
10  
0
5
10  
15  
20  
25  
30  
VDD SUPPLY VOLTAGE VDD[V]  
OUTPUT VOLTAGE VOUT[mV]  
Fig.2 Circuit Current  
Fig.3 “Low” Output Current  
1000  
6
5
4
3
2
1
0
BD4729】  
900  
800  
700  
600  
500  
400  
300  
200  
100  
0
BD4729】  
VOPL=0.675V  
VDET=2.90V  
VDET=2.95V  
VDET=50mV  
0
1
2
3
4
5
6
0
0.5  
1
1.5  
2
2.5  
DD[V]  
VDD SUPPLY VOLTAGE VDD[V]  
VDD SUPPLY VOLTAGE  
V
Fig.4 I/O Characteristics  
Fig.5 Operating Limit Voltage  
www.rohm.com  
TSZ02201-0R7R0G300020-1-2  
22.May.2013 Rev.006  
© 2013 ROHM Co., Ltd. All rights reserved.  
5/10  
TSZ2211115001  
Datasheet  
BD47xx series  
Typical Performance Curves – continued  
3.5  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
BD4729
BD4729】  
3.3  
3.1  
2.9  
2.7  
2.5  
-0.007%/  
~
~
-20 -10 0 10 20 30 40 50 60 70 80  
TEMPERATURE Ta[  
-20 -10 0 10 20 30 40 50 60 70 80  
]
TEMPERATURE Ta[  
]
Fig.6 Detection Voltage  
Fig.7 Circuit Current when ON  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
BD4729】  
BD4729】  
-20 -10 0 10 20 30 40 50 60 70 80  
-20 -10 0 10 20 30 40 50 60 70 80  
TEMPERATURE Ta[  
]
TEMPERATURE Ta[ ]  
: ℃  
Fig.8 Circuit Current when OFF  
Fig.9 Operating Limit Voltage  
www.rohm.com  
TSZ02201-0R7R0G300020-1-2  
22.May.2013 Rev.006  
© 2013 ROHM Co., Ltd. All rights reserved.  
6/10  
TSZ2211115001  
Datasheet  
BD47xx series  
Typical Performance Curves – continued  
500  
BD4729】  
400  
300  
200  
100  
0
Ta=-20  
Ta=75  
4
Ta=25  
2
0
1
3
5
"LOW" OUTPUT CURRENT IOL[mA]  
Fig.10 Output Saturation Voltage  
www.rohm.com  
TSZ02201-0R7R0G300020-1-2  
22.May.2013 Rev.006  
© 2013 ROHM Co., Ltd. All rights reserved.  
7/10  
TSZ2211115001  
Datasheet  
BD47xx series  
Application Information  
Explanation of Operation  
BD47xx series has threshold voltages namely the detection voltage and release voltage. As the voltages applied to the  
input reach their respective thresholds, the output switches from “High” to “Low” and from “Low” to “High”. The release  
voltage has a hysteresis that is the value of the detection voltage +50mV (Typ.), preventing chattering in the output. When  
the input is greater than the release voltage, the output is in a “High” state. When the input decreases from that state, the  
output switches to “Low” upon reaching the detection voltage. When the input is less than the detection voltage, the output  
is in a “Low” state. When the input increases from that state, the output switches to “High” upon reaching the release  
voltage. Additionally, at least 0.85V input voltage is required for the circuit to function as expected. When the input falls  
below the operating limit voltage, the output becomes unstable.  
VDD  
V
DD  
DET+ΔVDET  
DET  
V
V
V
OPL  
0V  
VOUT  
V
OH  
tPHL  
t
PLH  
t
PLH  
t
PHL  
V
OL  
Fig.11 Timing Waveform  
1
When the power supply is turned on, the output is still unstable until it reaches the operating limit voltage (VOPL) with a  
given time tPHL. Therefore it is possible that the reset signal is not outputted when the rise time of VDD is faster than tPHL  
.
2
When VDD is greater than VOPL but less than the reset release voltage (VDET+VDET), the output voltages will switch to  
Low.  
3
If VDD exceeds the reset release voltage (VDET+VDET) then VOUT switches from L to H.  
4
If VDD drops below the detection voltage (VDET) when the power supply is powered down or when there is a power  
supply fluctuation, VOUT switches to L (with a delay of tPHL).  
5
The potential difference between the detection voltage and the release voltage is known as the Hysteresis Width  
(VDET). The system is designed such that, the output does not toggle with power supply fluctuations within this hysteresis  
width, malfunctions due to noise are prevented.  
<Precautions>  
Please be aware that when there is resistance on the power supply line, the detection voltage varies with voltage drops  
caused by the IC current consumption.  
Please connect a capacitor between VDD and GND when the power supply line has high impedance.  
www.rohm.com  
TSZ02201-0R7R0G300020-1-2  
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© 2013 ROHM Co., Ltd. All rights reserved.  
8/10  
TSZ2211115001  
Datasheet  
BD47xx series  
Circuit Applications  
The following is an example of an application circuit using Reset IC for normal power supply detection. BD47xx series  
requires a pull up resistor on the output terminal. The pull up resistor value should be decided depending on the  
application, with enough consideration of power supply level and output current capability. When a capacitor is placed at  
the output terminal, to delay the output time or to remove noise, the output will become slower during starting or stopping.  
Please be careful in considering the appropriate value for pull up resistors, output current, and capacitor when inserting a  
bypass capacitor between input and GND. Please be aware that if an extremely large capacitor is used, the response time  
will become excessively slow.  
●●●●●●●●●●●●  
V
DD  
VDD  
5
microcontroller  
4
Reset Pin  
VOUT  
●●●●●●●●●●●●  
Vref  
BD47xx series  
GND  
3
Fig.12 Circuit Applications  
www.rohm.com  
© 2013 ROHM Co., Ltd. All rights reserved.  
TSZ2211115001  
TSZ02201-0R7R0G300020-1-2  
22.May.2013 Rev.006  
9/10  
Datasheet  
BD47xx series  
Operational Notes  
1) Absolute maximum ratings  
Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit  
between pins or an open circuit between pins. Therefore, it is important to consider circuit protection measures, such  
as adding a fuse, in case the IC is operated over the absolute maximum ratings.  
2) Ground Voltage  
The voltage of the ground pin must be the lowest voltage of all pins of the IC at all operating conditions. Ensure that no  
pins are at a voltage below the ground pin at any time, even during transient condition.  
3) Recommended operating conditions  
These conditions represent a range within which the expected characteristics of the IC can be approximately obtained.  
The electrical characteristics are guaranteed under the conditions of each parameter.  
4) Bypass Capacitor for Noise Rejection  
To help reject noise, put a 1µF capacitor between VDD pin and GND and 1000pF capacitor between VOUT pin and GND.  
Be careful when using extremely big capacitor as transient response will be affected.  
5) Short between pins and mounting errors  
Be careful when mounting the IC on printed circuit boards. The IC may be damaged if it is mounted in a wrong  
orientation or if pins are shorted together. Short circuit may be caused by conductive particles caught between the pins.  
6) Operation under strong electromagnetic field  
Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction.  
7) The VDD line impedance might cause oscillation because of the detection current.  
8) A VDD to GND capacitor (as close connection as possible) should be used in high VDD line impedance condition.  
9) Lower than the mininum input voltage puts the VOUT in high impedance state, and it must be VDD in pull up (VDD)  
condition.  
10) External parameters  
The recommended parameter range for RL is 2kto 1M. There are many factors (board layout, etc) that can affect  
characteristics. Please verify and confirm using practical applications.  
11) Power on reset operation  
Please note that the power on reset output varies with the VDD rise time. Please verify the behavior in the actual  
operation.  
12) Testing on application boards  
When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject  
the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should  
always be turned off completely before connecting or removing it from the test setup during the inspection process. To  
prevent damage from static discharge, ground the IC during assembly and use similar precautions during transport and  
storage.  
13) Rush current  
When power is first supplied to the IC, rush current may flow instantaneously. It is possible that the charge current to  
the parasitic capacitance of internal photo diode or the internal logic may be unstable. Therefore, give special  
consideration to power coupling capacitance, power wiring, width of GND wiring, and routing of connections.  
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TSZ02201-0R7R0G300020-1-2  
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10/10  
TSZ2211115001  
Daattaasshheeeett  
Notice  
General Precaution  
1) Before you use our Products, you are requested to carefully read this document and fully understand its contents.  
ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any  
ROHM’s Products against warning, caution or note contained in this document.  
2) All information contained in this document is current as of the issuing date and subject to change without any prior  
notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sales  
representative.  
Precaution on using ROHM Products  
1) Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,  
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you  
intend to use our Products in devices requiring extremely high reliability (such as medical equipment, transport  
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car  
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or  
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.  
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any  
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific  
Applications.  
2) ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor  
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate  
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which  
a failure or malfunction of our Products may cause. The following are examples of safety measures:  
[a] Installation of protection circuits or other protective devices to improve system safety  
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure  
3) Our Products are designed and manufactured for use under standard conditions and not under any special or  
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way  
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any  
special or extraordinary environments or conditions. If you intend to use our Products under any special or  
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of  
product performance, reliability, etc, prior to use, must be necessary:  
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents  
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust  
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,  
H2S, NH3, SO2, and NO2  
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves  
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items  
[f] Sealing or coating our Products with resin or other coating materials  
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of  
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning  
residue after soldering  
[h] Use of the Products in places subject to dew condensation  
4) The Products are not subject to radiation-proof design.  
5) Please verify and confirm characteristics of the final or mounted products in using the Products.  
6) In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse) is applied,  
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power  
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect  
product performance and reliability.  
7) De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual  
ambient temperature.  
8) Confirm that operation temperature is within the specified range described in the product specification.  
9) ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in  
this document.  
Notice - Rev.004  
© 2013 ROHM Co., Ltd. All rights reserved.  
Daattaasshheeeett  
Precaution for Mounting / Circuit board design  
1) When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product  
performance and reliability.  
2) In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the  
ROHM representative in advance.  
For details, please refer to ROHM Mounting specification  
Precautions Regarding Application Examples and External Circuits  
1) If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the  
characteristics of the Products and external components, including transient characteristics, as well as static  
characteristics.  
2) You agree that application notes, reference designs, and associated data and information contained in this document  
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely  
responsible for it and you must exercise your own independent verification and judgment in the use of such information  
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses  
incurred by you or third parties arising from the use of such information.  
Precaution for Electrostatic  
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper  
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be  
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,  
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).  
Precaution for Storage / Transportation  
1) Product performance and soldered connections may deteriorate if the Products are stored in the places where:  
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2  
[b] the temperature or humidity exceeds those recommended by ROHM  
[c] the Products are exposed to direct sunshine or condensation  
[d] the Products are exposed to high Electrostatic  
2) Even under ROHM recommended storage condition, solderability of products out of recommended storage time period  
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is  
exceeding the recommended storage time period.  
3) Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads  
may occur due to excessive stress applied when dropping of a carton.  
4) Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of  
which storage time is exceeding the recommended storage time period.  
Precaution for Product Label  
QR code printed on ROHM Products label is for ROHM’s internal use only.  
Precaution for Disposition  
When disposing Products please dispose them properly using an authorized industry waste company.  
Precaution for Foreign Exchange and Foreign Trade act  
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,  
please consult with ROHM representative in case of export.  
Precaution Regarding Intellectual Property Rights  
1) All information and data including but not limited to application example contained in this document is for reference  
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any  
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable  
for infringement of any intellectual property rights or other damages arising from use of such information or data.:  
2) No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any  
third parties with respect to the information contained in this document.  
Notice - Rev.004  
© 2013 ROHM Co., Ltd. All rights reserved.  
Daattaasshheeeett  
Other Precaution  
1) The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all  
information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or  
liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or  
concerning such information.  
2) This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.  
3) The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written  
consent of ROHM.  
4) In no event shall you use in any way whatsoever the Products and the related technical information contained in the  
Products or this document for any military purposes, including but not limited to, the development of mass-destruction  
weapons.  
5) The proper names of companies or products described in this document are trademarks or registered trademarks of  
ROHM, its affiliated companies or third parties.  
Notice - Rev.004  
© 2013 ROHM Co., Ltd. All rights reserved.  
配单直通车
BD4730G-TR产品参数
型号:BD4730G-TR
是否无铅:不含铅
是否Rohs认证:符合
生命周期:Active
IHS 制造商:ROHM CO LTD
零件包装代码:SSOP
包装说明:LSSOP, TSOP5/6,.11,37
针数:5
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
Factory Lead Time:5 weeks
风险等级:0.81
Is Samacsys:N
可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDSO-G5
长度:2.9 mm
信道数量:1
功能数量:1
端子数量:5
最高工作温度:75 °C
最低工作温度:-20 °C
封装主体材料:PLASTIC/EPOXY
封装代码:LSSOP
封装等效代码:TSOP5/6,.11,37
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified
座面最大高度:1.35 mm
子类别:Power Management Circuits
标称供电电压 (Vsup):2.89 V
表面贴装:YES
技术:BIPOLAR
温度等级:COMMERCIAL EXTENDED
端子形式:GULL WING
端子节距:0.95 mm
端子位置:DUAL
阈值电压标称:+3V
处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:1.6 mm
Base Number Matches:1
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