AAT3687 Datasheet, PDF (5/22 Pages) Advanced Analogic Technologies – Lithium-Ion/Polymer Battery Charger

AAT3687
Lithium-Ion/Polymer Battery Charger
Electrical Characteristics¹
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 Typ Max Units
Logic Control / Protection
V_EN(H)
V_EN(L)
I_EN(H)
V_ADPP#
T_C
Input High Threshold
Input Low Threshold
EN Input Current
Output Low Voltage
Preconditioning and Constant
Current Mode Time Out
1.6
0.4
AAT3687-1, AAT3687-2 Only;
10
V_EN = 5V
ADPP# Pin Sinks 500μA
0.4
C_CT = 100nF, V_ADP = 5.5V
3.0
V
V
μA
V
Hours
T_P
T_V
V_STAT
I_STAT
V_OVP
I_TK/I_CHG
I_TERM/I_CHG
Preconditioning Time Out
Constant Voltage Mode Time Out
Output Low Voltage
STAT Pin Current Sink Capability
Over-Voltage Protection Threshold
Pre-Charge Current
Charge Termination Threshold
Current
AAT3687, AAT3687-1 Only;
C_CT = 100nF, V_ADP = 5.5V
C_CT = 100nF, V_ADP = 5.5V
STAT Pin Sinks 4mA
AAT3687, AAT3687-1 Only
25
Minutes
3.0
0.4
8.0
4.4
10
Hours
V
mA
V
%
7.5
%
I_TS
Current Source from TS Pin
TS1
TS Hot Temperature Fault
Threshold
Hysteresis
70
80
90
μA
310 330 350
mV
15
TS2
TS Cold Temperature Fault
Threshold
Hysteresis
2.2 2.3 2.4
V
10
mV
I_DATA
DATA Pin Sink Current
DATA Pin is Active Low State
3
mA
I_ADPP#
ADPP# Current Sink
ADPP# Pin is Active Low State
8
mA
V_DATA(H) Input High Threshold
1.6
V
V_DATA(L) Input Low Threshold
0.4
V
SQ_PULSE Status Request Pulse Width
Status Request
200
ns
t_PERIOD System Clock Period
50
μs
f_DATA
Data Output Frequency
20
kHz
T_REG
Thermal Loop Regulation
90
°C
T_{LOOP_IN} Thermal Loop Entering Threshold
110
°C
T_{LOOP_OUT} Thermal Loop Exiting Threshold
85
°C
T_OVSD
Over-Temperature Shutdown
Threshold
145
°C
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