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LP28011 Datasheet, PDF (5/10 Pages) Lowpower Semiconductor inc – 1A Single-chip Li-ion and Li-POL Charge with OVP | |||
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Preliminary Datasheet
LP28011
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
VIN
ICC
VFLOAT
IBAT
ITRIKL
VTRIKL
VTRHYS
VUV
VUVHYS
VMSD
VASD
ITERM
VISET
ISTAT
VSTAT
âVRESTAT
TLIM
RON
tSS
tRECHARGE
tTERM
IISET
VIN OVP
PARAMETER
CONDITIONS
MIN
Adapter/USB Voltage Range
Input Supply Current
Charge Mode (Note 4), RISET = 10k
Standby Mode (Charge Terminated)
Shutdown Mode (RISET Not
Connected,
VCC < VBAT, or VCC < VUV)
2.65
Regulated Output (Float) Voltage
BAT Pin Current
0°C ⤠TA ⤠85°C, IBAT = 40mA
RISET = 1k, Current Mode
RISET = 2k, Current Mode
Standby Mode, VBAT = 4.2V
Shutdown Mode (RISET Not
Connected) Sleep Mode, VCC = 0V
4.158
788
386
0
Trickle Charge Current
VBAT < VTRIKL, RISET = 2k (Note 5)
Trickle Charge Threshold Voltage RISET = 10k, VBAT Rising (Note 5)
Trickle Charge Hysteresis Voltage RISET = 10k (Note 5)
VCC Undervoltage Lockout Threshold From VCC Low to High
VCC Undervoltage Lockout Hysteresis
ISET Pin Rising
Manual Shutdown Threshold Voltage ISET Pin Falling
VCC â VBAT Lockout Threshold
Voltage
VCC from Low to High
VCC from High to Low
C/10 Termination Current Threshold
RISET = 10k (Note 6)
RISET = 2k
ISET Pin Voltage
STAT Pin Weak Pull-Down Current
STAT Pin Output Low Voltage
RISET = 10k, Current Mode
VSTAT = 5V
ISTAT = 5mA
20
2.8
60
3.7
150
1.15
0.9
70
5
0.085
0.085
0.9
8
Recharge Battery Threshold Voltage VFLOAT - VRESTAT
100
Junction Temperature in Constant Temperature Mode
Power FET âONâ Resistance (Between VCC and BAT)
Soft-Start Time
Recharge Comparator Filter Time
Termination Comparator Filter Time
ISET Pin Pull-Up Current
Over voltage protection
IBAT = 0 to IBAT =830V/RISET
VBAT High to Low
IBAT Falling Below ICHG/10
0.75
400
5.9
TYP. MAX UNITS
5
6
V
300 2000
200 500 uA
25
4.2
830
415
-2.5
±1
±1
45
2.9
80
3.8
200
1.21
1.0
100
30
0.10
0.10
1.0
20
0.35
150
100
2
1000
3
6.2
50
4.242 V
871
mA
455
-6
±2
±2 uA
70 mA
3.0 V
110 mV
3.95 V
300 mV
1.30 V
1.1 V
140 mV
50 mV
0.115 mA/mA
0.115 mA/mA
1.1 V
35 uA
0.6 V
200 mV
120 °C
600 mâ¦
uS
4.5 mS
2500 uS
uA
6.5
V
LP28011 â 01 Ver. 1.1 Datasheet
Nov.-2007
Page 5 of 10
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