Lithium-Ion/Polymer Battery Charger
Electrical Characteristics
1
V
ADP
= 5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= 25°C.
Symbol
Description
Conditions
Min
1.6
AAT3687-1, AAT3687-2 Only;
V
EN
= 5V
ADPP# Pin Sinks 500μA
C
CT
= 100nF, V
ADP
= 5.5V
AAT3687, AAT3687-1 Only;
C
CT
= 100nF, V
ADP
= 5.5V
C
CT
= 100nF, V
ADP
= 5.5V
STAT Pin Sinks 4mA
3.0
25
3.0
0.4
8.0
4.4
10
7.5
70
310
2.2
3
8
1.6
0.4
200
50
20
90
110
85
145
80
330
15
2.3
10
90
350
2.4
0.4
10
0.4
AAT3687
Typ
Max
Units
V
V
μA
V
Hours
Minutes
Hours
V
mA
V
%
%
μA
mV
V
mV
mA
mA
V
V
ns
μs
kHz
°C
°C
°C
°C
Logic Control / Protection
V
EN(H)
Input High Threshold
V
EN(L)
Input Low Threshold
I
EN(H)
EN Input Current
V
ADPP#
T
C
T
P
T
V
V
STAT
I
STAT
V
OVP
I
TK
/I
CHG
I
TERM
/I
CHG
I
TS
TS1
TS2
I
DATA
I
ADPP#
V
DATA(H)
V
DATA(L)
SQ
PULSE
t
PERIOD
f
DATA
T
REG
T
LOOP_IN
T
LOOP_OUT
T
OVSD
Output Low Voltage
Preconditioning and Constant
Current Mode Time Out
Preconditioning Time Out
Constant Voltage Mode Time Out
Output Low Voltage
STAT Pin Current Sink Capability
Over-Voltage Protection Threshold
Pre-Charge Current
AAT3687, AAT3687-1 Only
Charge Termination Threshold
Current
Current Source from TS Pin
Threshold
TS Hot Temperature Fault
Hysteresis
Threshold
TS Cold Temperature Fault
Hysteresis
DATA Pin Sink Current
DATA Pin is Active Low State
ADPP# Current Sink
ADPP# Pin is Active Low State
Input High Threshold
Input Low Threshold
Status Request Pulse Width
Status Request
System Clock Period
Data Output Frequency
Thermal Loop Regulation
Thermal Loop Entering Threshold
Thermal Loop Exiting Threshold
Over-Temperature Shutdown
Threshold
1. The AAT3687 output charge voltage is specified over the 0° to 70°C ambient temperature range; operation over the -40°C to +85°C
temperature range is guaranteed by design.
3687.2006.10.1.7
5
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
