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AAT2552_08 Datasheet, PDF (5/31 Pages) Advanced Analogic Technologies – Total Power Solution for Portable Applications
SystemPowerTM
PRODUCT DATASHEET
AAT2552178
Total Power Solution for Portable Applications
Electrical Characteristics1
VADP = 5V; TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C.
Symbol Description
Battery Charger Operation
VADP
VUVLO
Adapter Voltage Range
Under-Voltage Lockout (UVLO)
UVLO Hysteresis
IOP
Operating Current
ISHUTDOWN
Shutdown Current
ILEAKAGE
Reverse Leakage Current from BAT Pin
Voltage Regulation
VBAT_EOC
End of Charge Accuracy
VMIN
Preconditioning Voltage Threshold
VRCH
Battery Recharge Voltage Threshold
Current Regulation
ICH
Charge Current Programmable Range
ΔICH/ICH Charge Current Regulation Tolerance
VSET
ISET Pin Voltage
KI_A
Current Set Factor: ICH/ISET
Charging Devices
RDS(ON)
Charging Transistor On Resistance
Logic Control/Protection
VEN(H)
VEN(L)
VSTAT
ISTAT
VOVP
ITK/ICHG
ITERM/ICHG
Enable Threshold High
Enable Threshold Low
Output Low Voltage
STAT Pin Current Sink Capability
Over-Voltage Protection Threshold
Pre-Charge Current
Charge Termination Threshold Current
Conditions
Rising Edge
Charge Current = 200mA
VBAT = 4.25V, VEN_BAT = GND
VBAT = 4V, ADP Pin Open
Measured from VBAT_EOC
ICHARGE = 200mA
VADP = 5.5V
STAT Pin Sinks 4mA
ICH = 100mA
Min Typ Max Units
4.0
6.5
V
3
4
V
150
mV
0.5
1
mA
0.3
1
μA
0.4
2
μA
4.158 4.20 4.242
V
2.8
3.0
3.2
V
-0.1
V
30
500
mA
-10
10
%
2
V
800
0.5
0.8
Ω
1.6
V
0.4
V
0.4
V
8
mA
4.4
V
10
%
10
%
1. The AAT2552 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
2552.2008.02.1.2
www.analogictech.com
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