LP28400 Datasheet, PDF (7/17 Pages) Lowpower Semiconductor inc – Programmable Charge Current Up to 3000mA

Preliminary Datasheet
LP28400
Absolute Maximum Ratings
 Input Voltage to GND (VIN) --------------------------------------------------------------------------------------------- 20V
 ACDRV, BS-------------------------------------------------------------------------------------------------------------------26V
 ACP, ACN, CMS, STAT, BATDRV, SRP, SRN ,SW --------------------------------------------0.3V to VIN+0.3V
 REGN, TS, CELL------------------------------------------------------------------------------------------------- -0.3Vto 7V
 BAT Short-Circuit Duration ------------------------------------------------------------------------------------- Continuous
 BAT Pin Current ----------------------------------------------------------------------------------------------------- 3000mA
 ISET Pin Current -------------------------------------------------------------------------------------------------------- 800µA
 Maximum Junction Temperature ------------------------------------------------------------------------------------- 125°C
 Operating Junction Temperature Range (TJ) ------------------------------------------------------------ -40℃ to 85°C
 Maximum Soldering Temperature (at leads, 10 sec) ------------------------------------------------------------ 260°C
Thermal Information
 Maximum Power Dissipation (PD,TA<40°C) ------------------------------------------------------------------------- 2W
 Thermal Resistance (JA) ----------------------------------------------------------------------------------------- 40℃/W
Electrical Characteristics
4.5V≤V(PVCC, AVCC)≤15V, –20°C < TJ + 125°C, typical values are at TA= 25°C, with respect to AGND (unless otherwise noted)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP. MAX UNITS
VIN
Adapter/USB Voltage Range
4.5
5
15
V
VUVLO
VUVLO_HYS
AC under-voltage rising
AC under-voltage
Measure on AVCC
3.3
V
300
mV
VSLEEP
SLEEP mode threshold
VAVCC – VSRN falling
100
mV
VSLEEP_HYS
Hysteresis
VAVCC – VSRN rising
200
mV
VACSET
ACSET Voltage Range
RSENSE = 20mΩ
0
VREF
V
IACSET
ACSET Input Bias Current
25
-25
uA
VACSET=VREF,
RSENSE = 20mΩ
95
100
105
mV
VACP-ACN
AC Current Full Scale
Sense Voltage
VACSET=Float,
RSENSE = 20mΩ
71
75
79
mV
VACSET=GND,
RSENSE = 20mΩ
46
50
54
mV
VAVCC > VUVLO, VAVCC >
VSRN, VBAT=4.2V/8.4V,
1.2
1.5
mA
Charge disabled
VAVCC > VUVLO, VAVCC >
Icc
Input Supply Current
VSRN, Charge
15
mA
enabled, switching
Sleep Mode,
15
uA
VAVCC>VUVLO,VSRN>VAVCC
BTST, SW, SRP, SRN,
VAVCC > VUVLO,
VAVCC > VSRN, ISET < 40mV,
25
uA
IBAT
BAT Pin Current
VBAT=4.2V/8.4V,
Charge disabled
LP28400-00 Version 1.0 May.-2013 Email: [e-mail] www.lowpowersemi.com Page 7 of 17