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HM4801 Datenblatt(PDF) 4 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

Teilenummer HM4801
Bauteilbeschribung  Over voltage and over current protection IC
PDF  6 Pages
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Hersteller  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
Direct Link  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM4801 Datenblatt(HTML) 4 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

  HM4801 Datasheet HTML 1Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4801 Datasheet HTML 2Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4801 Datasheet HTML 3Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4801 Datasheet HTML 4Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4801 Datasheet HTML 5Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4801 Datasheet HTML 6Page - Shenzhen Huazhimei Semiconductor Co., Ltd  
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Electrical Characteristics
Table 5
Parameter
Symbol
Test conditions
Min
Typ
Max Unit
DC characteristics and Power-ON-Reset
Input quiescent current
IQ
VACIN=5V,Iout=0A
120
200
uA
IN-to-OUT ON resistance
RON
VACIN=5V,Iout=3A
40@4.5V
mΩ
Output auto discharge resistance
RDISCHARGE
500
Ω
Under voltage lock out threshold
UVLO
VACIN increasing from 0~3.5V
3.4
V
Under voltage lock out hysteresis
VHYS-UVLO
VACIN decreasing from 3.5~0V
300
mV
Output power-on time
TON
VACIN=0 -> 5V to output ON
6
8
10
ms
EN Threshold Voltage
VENL
0.4
V
VENH
1.2
V
EN to GND current
IEN
2
uA
Input Over-Voltage-Protection (OVP)
PROADJ threshold
V PROADJ
VACIN increasing from 5~7V
1.21
V
PROADJ hysteresis
VHYS- PROADJ
VACIN decreasing from 7~5V
70
mV
OVP active time
TOVP
VACIN= 5 -> 10V
1
us
OVP recovery time
TON(OVP)
VACIN=10 -> 5V to output ON
6
8
10
ms
Over-Temperature-Protection (OTP)
OTP threshold
155
℃
OTP hysteresis
40
℃
Power Switch Body Diode
Forward peak surge current
IFSM
Pulse Width=10ms
15
A
Pulse Width=20us
50
A
The formula for over voltage:
OVP 
1.21*（
R
1 1）
R
2
HM4801



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