AAT3687 Datasheet, PDF (4/22 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
Operation
ADP Adapter Voltage Range
4.0
5.5 V
V_ADPP
Adapter Present Indicator Threshold
Voltage
4.25
4.5
4.7 V
V_UVLO
Under-Voltage Lockout (UVLO)
UVLO Hysteresis
Rising Edge
3.0
V
150
mV
I_OP
Operating Current
I_SLEEP Sleep Mode Current
I_Leakage
Reverse Leakage Current from
BAT Pin
Charge Current = 100mA
AAT3687: V_BAT = 4.25V
AAT3687-1, AAT3687-2:
V_BAT = 4.25V
V_BAT = 4V, ADP Pin Open
0.75
1.5 mA
0.3
1.0
μA
1
3
1.0
μA
Voltage Regulation
V_{BAT_EOC}¹ End of Charge Voltage Accuracy
4.158
4.20
4.242 V
ΔV_CH/V_CH Output Charge Voltage Tolerance
0.5
%
V_MIN Preconditioning Voltage Threshold AAT3687, AAT3687-1 Only 2.8
3.0
3.15 V
V_RCH Battery Recharge Voltage Threshold
V_{BAT_EOC} - 0.1
V
Current Regulation
I_CH
Charge Current
ΔI_CH/I_CH Charge Current Regulation Tolerance
V_ADPSET ADPSET Pin Voltage
CC Mode
K_IA
Current Set Factor: I_CH/I_ADPSET
Charging Devices
100
1500 mA
10
%
2.0
V
4000
R_DS(ON)
Adapter Charging Transistor
On Resistance
V_IN = 5.5V
0.2
0.25
0.35 Ω
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.
4
3687.2006.10.1.7