PRODUCT DATASHEET
AAT2552178
SystemPower
TM
Electrical Characteristics
1
Total Power Solution for Portable Applications
V
ADP
= 5V; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
= 25°C.
Symbol
Description
Conditions
Min
4.0
3
150
0.5
0.3
0.4
4.158
2.8
Measured from V
BAT_EOC
30
-10
2
800
V
ADP
= 5.5V
1.6
STAT Pin Sinks 4mA
4.4
10
10
0.4
0.4
8
0.5
0.8
4.20
3.0
-0.1
Typ
Max
6.5
4
1
1
2
4.242
3.2
Units
V
V
mV
mA
μA
μA
V
V
V
mA
%
V
Battery Charger Operation
Adapter Voltage Range
V
ADP
Under-Voltage Lockout (UVLO)
V
UVLO
UVLO Hysteresis
Operating Current
I
OP
Shutdown Current
I
SHUTDOWN
Reverse Leakage Current from BAT Pin
I
LEAKAGE
Voltage Regulation
End of Charge Accuracy
V
BAT_EOC
Preconditioning Voltage Threshold
V
MIN
Battery Recharge Voltage Threshold
V
RCH
Current Regulation
Charge Current Programmable Range
I
CH
Charge Current Regulation Tolerance
ΔI
CH
/I
CH
ISET Pin Voltage
V
SET
Current Set Factor: I
CH
/I
SET
K
I_A
Charging Devices
Charging Transistor On Resistance
R
DS(ON)
Logic Control/Protection
V
EN(H)
Enable Threshold High
Enable Threshold Low
V
EN(L)
Output Low Voltage
V
STAT
STAT Pin Current Sink Capability
I
STAT
Over-Voltage Protection Threshold
V
OVP
Pre-Charge Current
I
TK
/I
CHG
Charge Termination Threshold Current
I
TERM
/I
CHG
Rising Edge
Charge Current = 200mA
V
BAT
= 4.25V, V
EN_BAT
= GND
V
BAT
= 4V, ADP Pin Open
I
CHARGE
= 200mA
500
10
Ω
V
V
V
mA
V
%
%
I
CH
= 100mA
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
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