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HM5081 Datasheet(PDF) 5 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

Part # HM5081
Description  4.5A Synchronous Buck Li-ion Charger
PDF  9 Pages
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Manufacturer  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
Direct Link  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM5081 Datasheet(HTML) 5 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

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ELECTRICAL CHARACTERISTICS
(TA=25℃, VIN = 5V, unless otherwise noted)
Symbol
Parameter
Condition
Min Typ
Max
Units
VIN
Adapter/USB Voltage
Range
4
22
V
ICC
Input Supply Current
Standby Mode
(Charge Terminated)
1
mA
VFLOAT
Regulated Output (Float)
Voltage
FBADJ floating
4.158 4.2
4.242
V
VRS
Program Charging Current
(For RS to BAT)
VTRIKL<VBAT<VFLOAT
50
mV
IBAT
BAT Pin Current
RSNS=50mΩ,
Current Mode
1000
mA
RSNS=25mΩ,
Current Mode
2000
mA
Standby Mode
4
μA
ITRIKL
Trickle Charge Current
VBAT<VTRIKL,
RSNS=50mΩ
100
mA
VBAT<2.3V
20
mA
VTRIKL
Trickle Charge Threshold
Voltage
RSNS=50mΩ, VBAT
Rising
2.8
V
VTRHYS
Trickle Charge Hysteresis
Voltage
RSNS=50mΩ
100
mV
VSTAT
STAT Pin Output Low
Voltage
ISTAT=5mA
0.5
V
ISTAT
STAT Pin Weak Pull-Down
Current
VSTAT=5V
5
uA
ΔVREC
HRG
Recharge Battery Threshold
Voltage
VFLOAT-VRECHRG
150
mV
TLIM
Junction Temperature in
Constant
Temperature Mode
150
℃
ITERM
C/10 Terminal Current
RSNS=50mΩ
100
mA
VIN UVLO Under Voltage Lockout of VIN
VIN rising
4
V
VIN falling
3.8
V
VIN OVP
VIN over voltage protect
VIN rising
25
V
hysteresis
1
VNTC-H
High Temperature Protection
Threshold Voltage
Battery Temperature
rising
30
%VLV5
VNTC-L
Low Temperature Protection
Threshold Voltage
Battery Temperature
falling
70
%VLV5
FOSC
Frequency
500
KHz
- 5 -
4.5A Synchronous Buck Li-ion Charger
HM



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