PRODUCT DATASHEET
AAT2550178
SystemPowerTM
Total Power Solution for Portable Applications
Electrical Characteristics1 (continued)
VADP = 5V; TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Battery Charger
Conditions
Min
Typ
Max Units
VADP
Adapter Voltage Range
Under-Voltage Lockout
UVLO Hysteresis
Quiescent Current
Sleep Mode Current
Reverse Leakage Current
Shutdown Current
End of Charge Voltage Accuracy
Output Charge Voltage Tolerance
Preconditioning Voltage Threshold
Battery Recharge Voltage Threshold
Charge Current
Charge Current Regulation Tolerance
ADPSET Pin Voltage
Current Set Factor: ICH/IADPSET
Charger Pass Device
Constant Current Mode Time-Out
Preconditioning Time-Out
Constant Voltage Mode Time-Out
Output Low Voltage
STAT Sink Current
Over-Voltage Protection
Preconditioning (Trickle Charge) Current
Charge Termination Threshold Current
Current Source from TS Pin
4.0
5.5
V
V
Rising Edge
3.0
150
0.75
0.3
VUVLO
mV
mA
μA
μA
μA
V
%
V
V
IQ
ICHARGE = 100mA
VBAT = 4.25V
VBAT = 4V, ADP Pin Open
VEN = GND
3.0
1.0
ISLEEP
ILEAKAGE
ISHDN
VBAT_EOC
ΔVCH/VCH
VMIN
1.0
1.0
4.242
2
4.158
2.80
100
4.2
0.5
3.0
3.15
VRCH
ICH
VBAT_EOC - 0.1
1000
mA
%
V
ΔICH/ICH
VADPSET
KIA
RDS(ON)
TC
TP
TV
VSTAT
ISTAT
VOVP
10
2.0
4000
0.25
3.0
Constant Current Mode
Ω
Hour
Minute
Hour
V
mA
V
%
VIN = 5.5V
0.20
0.35
0.4
CT = 100nF, VADP = 5.5V
CT = 100nF, VADP = 5.5V
CT = 100nF, VADP = 5.5V
ISINK = 4mA
25
3.0
8.0
4.4
10
7.5
80
ITK/ICH
TERM/ICH
ITS
I
%
μA
70
90
Threshold
Hysteresis
Threshold
Hysteresis
310
330
15
2.3
10
350
TS1
TS Hot Temperature Fault
TS Cold Temperature Fault
mV
2.2
2.4
0.4
V
mV
mA
V
TS2
IDATA
DATA Pin Sink Current
Input High Threshold
Input Low Threshold
Status Request Pulse Width
System Clock Period
DATA Pin is Active Low
3.0
1.6
VDATA(H)
VDATA(L)
SQPULSE
TPeriod
FDATA
TREG
TLOOP_IN
TLOOP_OUT
TSD
V
200
ns
μs
kHz
°C
°C
°C
°C
50
20
90
110
85
145
Data Output Frequency
Thermal Loop Regulation
Thermal Loop Entering Threshold
Thermal Loop Exiting Threshold
Over-Temperature Shutdown Threshold
1. The AAT2550 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.
2. End of Charge Voltage Accuracy is specified over the 0° to 70°C ambient temperature range.
w w w . a n a l o g i c t e c h . c o m
2550.2008.02.1.3
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