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參數(shù)資料
| 型號(hào)： | BD4723G |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | ROHS COMPLIANT, SSOP-5 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大小： | 282K |
| 代理商： | BD4723G |
Technical Note
2/7
BD47□□G series
www.rohm.com
2010.01 - Rev.B
2010 ROHM Co., Ltd. All rights reserved.
Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Power Supply Voltage
VDD-GND
-0.3 ~ +10
V
Output Voltage
Vout
-0.3 ~ +10
V
Power Dissipation
*1 *2
Pd
540
mW
Operating Temperature
Topr
-40 ~ +75
°C
Ambient Storage Temperature
Tstg
-55 ~ +125
°C
*1 When a ROHM standard circuit board (70mm×70mm×1.6mm glass epoxy board) is mounted.
*2 When used at temperatures higher than Ta=25°C, the power is reduced by 5.4mW/°C
Electrical characteristics (Unless Otherwise Specified Ta=25°C)
Parameter
Symbol
Condition
Limit
Unit
Min.
Typ.
Max.
Detection Voltage
Vs
Vcc=HL
RL=4.7k
Vs (T)
×0.99
Vs (T)
×1.01
V
Temperature Coefficient
Of Detection Voltage
Vs/T
RL=4.7kTa=-20~+75°C Designed Guarantee
-
±0.01
-
%/°C
Detection Hysteresis Voltage
Vs
RL=4.7k, Vcc＝LHL
30
50
100
mV
Transfer Delay Time ”H”
tPLH
CL=100pF，RL=4.7k
*1
-
20
50
s
Transfer Delay Time ”L”
tPHL
CL=100pF，RL=4.7k
*2
-
60
120
s
Reset Output Voltage ”L”
VOL
Vcc=Vs(min.)-0.05V, RL=4.7k
-
0.1
0.4
V
Circuit Current ON
Icc1
Vcc=Vs(min.)-0.05V, RL=∞
-
1.5
3.0
A
Circuit Current OFF
Icc2
Vcc=Vs(typ.)/0.85V, RL=∞
-
1.6
3.2
A
Threshold Operating Voltage
VOPL
RL=4.7k，VOL≥0.4V
-
0.65
0.85
V
Output Leak Current
IL
Vcc=VOUT=10V
-
0.1
A
Reset Output Current ”L”
IOL
Vo=0.4V, Vcc=Vs(min.)-0.05V
3.0
15.0
-
mA
Vs(T):Standard Detection Voltage（1.9V to 4.6V, 0.1V step）
RＬ:Pull-up resistor to be connected between VOUT and power supply.
CL:Capacitor to be connected between VOUT and GND.
*1 tPLH:Vcc=(Vs(typ.)-0.4V)(Vs(typ.)+0.4V)
*2 tPHL:Vcc=(Vs(typ.)+0.4V)(Vs(typ.)-0.4V)
Designed Guarantee.(Outgoing inspection is not done on all products.)
Block Diagrams
PIN No.
Symbol
Function
1
N.C.
Unconnected Terminal
2
SUB
Substrate*
3
GND
4
VOUT
Reset Output
5
VCC
Power Supply Voltage
*Substrate Pin should be connected with GND
TOP VIEW
SSOP5
Fig.1
Vref
VOUT
VCC
GND
5
4
3
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