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产品型号BU4528BF-E2的概述

BU4528BF-E2芯片概述 BU4528BF-E2是一款高性能的宽输入电压范围线性稳压器。该芯片的设计使其能够满足现代电子设备对稳定电源的需求,常被用于各种消费电子、工业设备及通信设备中。BU4528BF-E2 以其优越的电源管理特性和高可靠性,广泛应用于音频设备、汽车电子、家电及其他电子领域。 该芯片的架构包含了内置的过流保护和热保护功能,确保其在恶劣的工作条件下依然能保持稳定的输出。此外,BU4528BF-E2还配备了低掉压功能,能够在较低的输入电压下输出接近于盲峰的稳定电压,这一特性使其对于一些对电源要求苛刻的应用尤为重要。 详细参数 BU4528BF-E2的核心参数如下: - 输入电压范围:4.5V 至 28V - 输出电压选择:固定输出(例如3.3V或5V),也可通过外部电阻分压器设置可调输出 - 输出电流:最大可支持1A - 线性度:优越的负载调节和电源调节特性 - 温...

产品型号BU4528BF-E2的Datasheet PDF文件预览

Standard ICs  
Dual monostable multivibrator  
BU4528B / BU4528BF  
The BU4528B and BU4528BF are monostable multivibrators with trigger and reset functions that can be activated.  
Each chip has two built-in circuits.  
Triggers can initiate both rising and falling in response to Input A and Input B. As the output monostable pulse width  
is determined by the time constant of the external resistance (Rx) and the capacitor (Cx), a wide range of output  
pulse widths can be set.  
Setting the RESET input to "L" enables external asynchronous resetting and this RESET input can be utilized to  
reduce the time from the trigger disable input or the power on until the BU4528B and BU4528BF are ready for mono-  
stable operation.  
Features  
1) Low power dissipation.  
4) High fan-out.  
2) Wide range of operating power supply voltages.  
3) High input impedance.  
5) Direct drive of 2 L-TTL inputs and 1 LS-TTL input.  
Block diagram  
T11  
1
2
3
4
5
6
7
8
16 VDD  
15 T12  
T21  
RESET1  
T22  
14  
13  
A1  
B1  
RESET2  
12 A2  
11 B2  
10 Q2  
Q1  
Q1  
VSS  
9
Q2  
Truth table  
Logic circuit diagram  
INPUT  
A
OUTPUT  
RESET  
B
H
Q
Q
CX  
RX  
VDD  
H
H
H
H
H
H
L
L
T1  
T2  
A
B
Q
Q
L
Not Triggered  
Not Triggered  
Not Triggered  
Not Triggered  
H
L, H,  
L
RESET  
H
L, H,  
X
X
X
L
H
X
Not Triggered  
1
Standard ICs  
BU4528B / BU4528BF  
Absolute maximum ratings (Ta = 25°C, VSS = 0V)  
Parameter  
Symbol  
VDD  
Limits  
– 0.3 ~ + 18  
Unit  
V
Power supply voltage  
Power dissipation  
Operating temperature  
Storage temperature  
Input voltage  
Pd  
1000 (DIP), 500 (SOP)  
– 40 ~ + 85  
mW  
°C  
°C  
V
Topr  
Tstg  
VIN  
– 55 ~ + 150  
– 0.3 ~ VDD + 0.3  
Electrical characteristics  
DC characteristics (unless otherwise noted, Ta = 25°C, VSS = 0V)  
Parameter  
Symbol  
Min.  
Typ.  
Max.  
Unit  
V
Conditions  
VDD (V)  
5
3.5  
7.0  
Input high level voltage  
VIH  
10  
15  
5
11.0  
1.5  
3.0  
4.0  
0.3  
– 0.3  
Input low level voltage  
VIL  
V
10  
15  
15  
15  
5
Input high level current  
Input low level current  
IIH  
IIL  
µA  
µA  
VIH = 15V  
VIL = 0V  
4.95  
9.95  
14.95  
VOH  
VOL  
IOH  
IOL  
V
10  
15  
5
IO = 0mA  
IO = 0mA  
Output high level voltage  
Output low level voltage  
Output high level current  
Output low level current  
Static current dissipation  
0.05  
0.05  
0.05  
V
10  
15  
5
– 0.16  
– 0.4  
– 1.2  
0.44  
1.1  
VOH = 4.6V  
VOH = 9.5V  
VOH = 13.5V  
VOL = 0.4V  
VOL = 0.5V  
VOL = 1.5V  
mA  
mA  
µA  
10  
15  
5
10  
15  
5
3.0  
20  
IDD  
40  
10  
15  
VI = VDD or GND  
80  
2
Standard ICs  
BU4528B / BU4528BF  
Switching characteristics (Ta = 25°C, CL = 50pF, VSS = 0V)  
Parameter  
Symbol  
Min.  
Typ.  
Max.  
Unit  
Conditions  
V
DD  
(V)  
25  
10  
15  
100  
50  
55  
90  
95  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
5
Output rise time  
t
TLH  
THL  
10  
15  
5
40  
100  
50  
Output fall time  
t
10  
15  
5
40  
325  
120  
90  
Propagation delay time,  
A or B to Q or Q  
t
t
PLH  
PHL  
10  
15  
5
C
C
C
C
X
X
X
X
=
=
=
=
15pF, R  
X
=
5k  
=
705  
290  
210  
325  
90  
Propagation delay time,  
A or B to Q or Q  
t
t
PLH  
PHL  
10  
15  
5
1000pF, R  
X
10k  
10  
15  
5
15pF, R  
X
=
5k  
=
60  
Propagation delay,  
Reset to Q or Q  
t
t
PLH  
PHL  
1000  
300  
250  
70  
10  
15  
5
1000pF, R  
X
10k  
10k  
Minimum input  
pulse width  
C
C
X
X
=
=
1000pF, R  
X
X
=
=
tWIN  
30  
10  
15  
5
15pF,  
R
5k  
30  
550  
350  
300  
40  
t
WOUT1  
WOUT2  
10  
15  
5
C
X
X
=
=
15pF, R  
X
=
5k  
=
Output pulse width  
Output pulse width  
µs  
µs  
µs  
t
50  
10  
15  
5
C
1000pF, R  
X
10k  
10k  
55  
0
ns  
ns  
ns  
pF  
C
C
X
X
=
=
1000pF, R  
X
X
=
=
trr  
0
10  
15  
Minimum trigger time  
Input capacitance  
15pF,  
R
5kΩ  
0
CIN  
5
3
Standard ICs  
BU4528B / BU4528BF  
Measurement circuits  
VDD  
RX  
CX  
VDD  
T2  
T1  
A
B
Q
Q
RESET  
P.G.  
P.G.  
P.G.  
CL  
CL  
VSS  
Fig. 1 Switching time measurement circuit  
20ns  
20ns  
90%  
50%  
50%  
10%  
A
B
20ns  
90%  
20ns  
50%  
10%  
20ns  
20ns  
RESET  
90%  
50%  
10%  
tr  
tPHL  
trr  
tPLH  
tWOUT  
tPLH  
tf  
90%  
90%  
50%  
50%  
tPHL  
50%  
tPHL  
50%  
10%  
tf  
10%  
tr  
Q
Q
tPHL  
90%  
50%  
50%  
50%  
50%  
10%  
tWOUT  
Fig. 2 Switching time waveform  
4
Standard ICs  
BU4528B / BU4528BF  
Timing chart  
AIN  
BIN  
RESET  
Q
Q
tN  
tN  
t1  
t2  
t3  
tN  
(VDD – VSS)  
5
: TRIGGER  
: RESET  
tN : (Cx > 0.01µF) tN Լ [0.2 + 0.1  
t1, t2, t3 : t1,t2 ,t3 < tN  
] · RxCx  
: RETRIGGER  
Fig. 3  
Electrical characteristic curve  
1200  
DIP16  
1000  
800  
600  
SOP16  
400  
200  
0
0
25  
50  
75  
100  
125  
150  
AMBIENT TEMPERATURE: Ta (°C)  
Fig. 4 Power dissipation vs. Ta  
External dimensions (Units: mm)  
BU4528B  
BU4528BF  
10.0 ± 0.2  
19.4 ± 0.3  
16  
1
9
8
16  
1
9
8
7.62  
1.27 0.4 ± 0.1  
0.3Min.  
2.54  
0.5 ± 0.1  
0° ~ 15°  
0.15  
DIP16  
SOP16  
5
Appendix  
Notes  
No technical content pages of this document may be reproduced in any form or transmitted by any  
means without prior permission of ROHM CO.,LTD.  
The contents described herein are subject to change without notice. The specifications for the  
product described in this document are for reference only. Upon actual use, therefore, please request  
that specifications to be separately delivered.  
Application circuit diagrams and circuit constants contained herein are shown as examples of standard  
use and operation. Please pay careful attention to the peripheral conditions when designing circuits  
and deciding upon circuit constants in the set.  
Any data, including, but not limited to application circuit diagrams information, described herein  
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM  
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any  
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of  
whatsoever nature in the event of any such infringement, or arising from or connected with or related  
to the use of such devices.  
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or  
otherwise dispose of the same, no express or implied right or license to practice or commercially  
exploit any intellectual property rights or other proprietary rights owned or controlled by  
ROHM CO., LTD. is granted to any such buyer.  
Products listed in this document use silicon as a basic material.  
Products listed in this document are no antiradiation design.  
The products listed in this document are designed to be used with ordinary electronic equipment or devices  
(such as audio visual equipment, office-automation equipment, communications devices, electrical  
appliances and electronic toys).  
Should you intend to use these products with equipment or devices which require an extremely high level of  
reliability and the malfunction of with would directly endanger human life (such as medical instruments,  
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other  
safety devices), please be sure to consult with our sales representative in advance.  
About Export Control Order in Japan  
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control  
Order in Japan.  
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)  
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.  
Appendix1-Rev1.0  
配单直通车
BU4528BF-E2产品参数
型号:BU4528BF-E2
是否无铅: 不含铅
是否Rohs认证: 符合
生命周期:Active
零件包装代码:SOIC
包装说明:LSOP, SOP16,.25
针数:16
Reach Compliance Code:compliant
风险等级:5.39
其他特性:RETRIGGERABLE
系列:4000/14000/40000
JESD-30 代码:R-PDSO-G16
JESD-609代码:e3/e2
长度:10 mm
逻辑集成电路类型:MONOSTABLE MULTIVIBRATOR
数据/时钟输入次数:2
功能数量:2
端子数量:16
最高工作温度:85 °C
最低工作温度:-40 °C
输出极性:COMPLEMENTARY
封装主体材料:PLASTIC/EPOXY
封装代码:LSOP
封装等效代码:SOP16,.25
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, LOW PROFILE
峰值回流温度(摄氏度):260
电源:5/15 V
认证状态:Not Qualified
座面最大高度:1.6 mm
子类别:Prescaler/Multivibrators
最大供电电压 (Vsup):16 V
最小供电电压 (Vsup):3 V
标称供电电压 (Vsup):5 V
表面贴装:YES
技术:CMOS
温度等级:INDUSTRIAL
端子面层:TIN/TIN COPPER
端子形式:GULL WING
端子节距:1.27 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:10
宽度:4.4 mm
Base Number Matches:1
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