AAT3685
Lithium-Ion/Polymer Battery Charger
Electrical Characteristics1
VADP = 5V, TA = -25°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Conditions
Min Typ Max Units
Logic Control / Protection
VPWRSEL(H) Input High Threshold
VPWRSEL(L) Input Low Threshold
1.6
1.6
V
V
0.4
VEN(H)
VEN(L)
IEN(H)
VSTAT
ISTAT
Input High Threshold
V
Input Low Threshold
0.4
10
V
EN Input Current
AAT3685-1 Only, VEN = 5V
STAT Pin Sinks 4mA
μA
V
Output Low Voltage
0.4
STAT Pin Current Sink Capability
Over-Voltage Protection Threshold
8.0
4.4
10
mA
V
VOVP
For SETH Mode
For SETL Mode
For SETH Mode
For SETL Mode
ITK/ICHG
Pre-Charge Current
%
50
ITERM/ICHG Charge Termination Threshold Current
ITERM/ICHG Charge Termination Threshold Current
7.5
35
%
%
ITS
Current Source from TS Pin
70
80
90
μA
Threshold
310 330
15
350
TS1
TS Hot Temperature Fault
mV
Hysteresis
Threshold
2.2 2.3
10
2.4
0.4
V
mV
mA
V
TS2
TS Cold Temperature Fault
Hysteresis
I_DATA
VDATA(H)
VDATA)(L)
SQPULSE
tPERIOD
fDATA
DATA Pin Sink Current
DATA Pin is Active Low State
3.0
Input High Threshold
1.6
Input Low Threshold
V
Status Request Pulse Width
System Clock Period
Status Request
200
50
ns
μs
kHz
°C
Data Output Frequency
Over-Temperature Shutdown Threshold
20
TOVSD
145
1. The AAT3685 output charge voltage is specified over the 0° to 70°C ambient temperature range; operation over the -25°C to +85°C
temperature range is guaranteed by design.
3685.2006.10.1.3
5
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
