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LP28292 Datasheet(PDF) 5 Page - Lowpower Semiconductor inc

Part # LP28292
Description  1.5A Single-chip Li-ion and Li-POL Charge with OVP
PDF  10 Pages
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Manufacturer  POWER [Lowpower Semiconductor inc]
Direct Link  http://www.lowpowersemi.com
Logo POWER - Lowpower Semiconductor inc

LP28292 Datasheet(HTML) 5 Page - Lowpower Semiconductor inc

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Preliminary
Datasheet
LP28292
LP28292 – 02 Ver. 1.2 Datasheet
Nov.-2008
Page 5 of 10
Electrical Characteristics (The specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. VCC = 5V, unless otherwise noted.)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP.
MAX UNITS
VIN
Adapter/USB Voltage Range
2.65
5
6
V
Charge Mode (Note 4), RISET = 10k
Standby Mode (Charge Terminated)
300
2000
Shutdown Mode (RISET Not
Connected,
200
500
ICC
Input Supply Current
VCC < VBAT, or VCC < VUV)
25
50
uA
VFLOAT
Regulated Output (Float) Voltage
0°C ≤ TA ≤ 85°C, IBAT = 40mA
4.158
4.2
4.242
V
RISET = 1k, Current Mode
840
880
920
RISET = 2k, Current Mode
386
44
455
mA
IBAT
BAT Pin Current
Standby Mode, VBAT = 4.2V
Shutdown Mode (RISET Not
Connected) Sleep Mode, VCC = 0V
0
-2.5
±
1
±
1
-6
±
2
±
2
uA
ITRIKL
Trickle Charge Current
VBAT < VTRIKL, RISET = 2k (Note 5)
20
45
70
mA
VTRIKL
Trickle Charge Threshold Voltage
RISET = 10k, VBAT Rising (Note 5)
2.8
2.9
3.0
V
VTRHYS
Trickle Charge Hysteresis Voltage
RISET = 10k (Note 5)
60
80
110
mV
VUV
VCC Undervoltage Lockout Threshold From VCC Low to High
3.7
3.8
3.95
V
VUVHYS
VCC Undervoltage Lockout Hysteresis
150
200
300
mV
ISET Pin Rising
1.15
1.21
1.30
V
VMSD
Manual Shutdown Threshold Voltage
ISET Pin Falling
0.9
1.0
1.1
V
VCC from Low to High
70
100
140
mV
VASD
VCC – VBAT Lockout Threshold
Voltage
VCC from High to Low
5
30
50
mV
RISET = 10k (Note 6)
0.085
0.10
0.115
mA/mA
ITERM
C/10 Termination Current Threshold
RISET = 2k
0.085
0.10
0.115
mA/mA
VISET
ISET Pin Voltage
RISET = 10k, Current Mode
0.9
1.0
1.1
V
ISTAT
STAT Pin Weak Pull-Down Current
VSTAT = 5V
8
20
35
uA
VSTAT
STAT Pin Output Low Voltage
ISTAT = 5mA
0.35
0.6
V
∆VRESTAT
Recharge Battery Threshold Voltage VFLOAT - VRESTAT
100
150
200
mV
TLIM
Junction Temperature in Constant Temperature Mode
120
°C
RON
Power FET “ON” Resistance (Between VCC and BAT)
600
mΩ
tSS
Soft-Start Time
IBAT = 0 to IBAT =850V/RISET
100
uS
IISET
ISET Pin Pull-Up Current
3
uA
VIN OVP
Over voltage protection
5.9
6.2
6.5
V



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