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LP28055 数据表(PDF) 4 Page - Lowpower Semiconductor inc

部件名 LP28055
功能描述  1A Single-chip Li-ion and Li-POL Charger
PDF  7 Pages
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制造商  POWER [Lowpower Semiconductor inc]
网页  http://www.lowpowersemi.com
标志 POWER - Lowpower Semiconductor inc

LP28055 数据表(HTML) 4 Page - Lowpower Semiconductor inc

  LP28055 Datasheet HTML 1Page - Lowpower Semiconductor inc LP28055 Datasheet HTML 2Page - Lowpower Semiconductor inc LP28055 Datasheet HTML 3Page - Lowpower Semiconductor inc LP28055 Datasheet HTML 4Page - Lowpower Semiconductor inc LP28055 Datasheet HTML 5Page - Lowpower Semiconductor inc LP28055 Datasheet HTML 6Page - Lowpower Semiconductor inc LP28055 Datasheet HTML 7Page - Lowpower Semiconductor inc  
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Preliminary Datasheet
LP28055
LP28055 – 02
Oct.-2018
Email: marketing@lowpowersemi.com
www.lowpowersemi.com
Page 4 of 7
Recommended Operating Conditions
Input supply voltage ------------------------------------------------------------------------------------------------------------------------------------ 3.5V to 6V
Operating Junction Temperature Range (TJ) ------------------------------------------------------------------------------------------ -40℃ to 85°C
Electrical Characteristics
(TA = 25°C. VIN = 5V, unless otherwise noted.)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP.
MAX
UNITS
IIN
Input Supply Current
EN=low ,charge
current=0
1000
uA
EN=high
40
VFLOAT
Regulated Output (Float) Voltage
IBAT = 40mA,
4.158
4.2
4.242
V
VUV
VCC Under voltage Lockout Threshold
From VCC Low to High
3.1
3.3
3.5
V
VUVHYS
VCC Under voltage Lockout Hysteresis
150
mV
VOVP
Input Voltage OVP
VIN Rising
6.7
7
7.3
V
VOVP-HYS
OVP Hysteresis
0.2
V
IBAT
BAT Pin Current
RISET = 1.5k, Current
Mode
1000
mA
EN=high, VBAT = 4.2V
1
±1
±1
uA
EN=low, Vin=float or 0V
1
ITRIKL
Trickle Charge Current
VBAT < VTRIKL
10
% IBAT
VTRIKL
Trickle Charge Threshold Voltage
VBAT Rising
2.6
V
VTRHYS
Trickle Charge Hysteresis Voltage
150
mV
VASD
VCC – VBAT Lockout Threshold Voltage
VUV < VIN
100
mV
ITERM
Termination Current Threshold
10
% IBAT
VISET
ISET Pin Voltage
RISET = 10k, Current
Mode
1
V
ISTAT
STAT1/STAT2 Pin Weak Pull-Down Current
VSTAT = 5V
5
uA
VSTAT
CHRG Pin Output Low Voltage
ISTAT= 5mA
0.1
V
VNTC-0℃
Low temperature pending voltage threshold
1.18
V
VNTC-10℃
half charging current mode voltage threshold(Low
temperature)
0.75
V
VNTC-60℃
High temperature Disable voltage threshold
0.17
V
VNTC_HYS
Hysteresis
40
mV
INTC
NTC bias current
RNTC=10K
48
uA
ΔVRESTAT
Recharge Battery Threshold Voltage
VFLOAT - VRESTAT
100
150
200
mV
TLIM
Junction Temperature in Constant Temperature Mode
125
°C
RON
Power FET “ON” Resistance (Between VCC and BAT)
400
mΩ



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