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 = -25°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
AAT3687-2 Only; V_EN = 5V
ADPP# Pin Sinks 500μA
C_CT = 100nF, V_ADP = 5.5V
1.6
0.4
10
0.4
3.0
V
V
μA
V
Hours
T_P
T_V
V_STAT
I_STAT
V_OVP
I_TK/I_CHG
I_TS
TS1
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 I_TERM/I_CHG
Current Source from TS Pin
TS Hot Temperature Fault
AAT3687 Only; C_CT = 100nF,
V_ADP = 5.5V
C_CT = 100nF, V_ADP = 5.5V
STAT Pin Sinks 4mA
AAT3687 Only
Threshold
Hysteresis
25
Minutes
3.0
0.4
8.0
4.4
10
Hours
V
mA
V
%
7.5
%
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 -25°C to +85°C
temperature range is guaranteed by design.
3687.2006.06.1.5
5