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LP28303A 数据表(PDF) 4 Page - Lowpower Semiconductor inc

部件名 LP28303A
功能描述  2.5A Synchronous Buck Li-ion Charger
PDF  8 Pages
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制造商  POWER [Lowpower Semiconductor inc]
网页  http://www.lowpowersemi.com
标志 POWER - Lowpower Semiconductor inc

LP28303A 数据表(HTML) 4 Page - Lowpower Semiconductor inc

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LP28303A-00
Apr.-2017
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 4 of 8
Preliminary Datasheet
LP28303A
Electrical Characteristics
(The specifications which apply over the full operating temperature range, otherwise specifications are at
TA=25℃, VIN = 5V, unless otherwise noted.)
Symbol
Parameter
Condition
Min
Typ
Max
Units
VIN
Adapter/USB Voltage Range
4.5
5.5
V
ICC
Input Supply Current
Standby Mode
(Charge Terminated)
0.1
mA
VFLOAT
Regulated Output (Float) Voltage
4.158
4.2
4.242
V
VCS
Current Sense Reference Voltage
(For CS to BAT)
VTRIKL<VBAT<VFLOAT
50
mV
IBAT
BAT Pin Current
Rcs=50mΩ, Current Mode
1000
mA
Rcs=25mΩ, Current Mode
2000
mA
Standby Mode
7
μA
ITRIKL
Trickle Charge Current
1V<VBAT<VTRIKL, RCS=50mΩ
100
mA
VBAT<1V, RCS=50mΩ
20
mA
VTRIKL
Trickle Charge Threshold Voltage
RCS=50mΩ, VBAT Rising
2.8
V
VTRHYS
Trickle Charge Hysteresis Voltage
RCS=50mΩ
100
mV
VREG
Input Regulation Voltage
4.3
V
VCHRG
CHRG Pin Output Low Voltage
ICHRG=5mA
0.5
V
VFULL
FULL Pin Output Low Voltage
IFULL=5mA
0.5
V
ΔVRECHRG
Recharge Threshold Voltage
VFLOAT-VRECHRG
150
mV
TLIM
Junction Temperature in Constant
Temperature Mode
150
℃
ITERM
C/10 Terminal Current
RCS=50mΩ
100
mA
UVLO
Under Voltage Lockout of VIN
VIN rising
4.1
V
VIN falling
3.9
V
VOVP
Over Voltage Protection of VIN
VIN rising
6.0
V
VIN falling
5.7
V
FOSC
Switch Frequency
VIN=5V, Current Mode
600
KHz
VNTC
Protection Threshold Voltage of
VNTC rising
80
%VIN
Protection Threshold Voltage of
VNTC falling
45
%VIN
NTC Disable Voltage
100
mV



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