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 = -25°C to +85°C, unless otherwise noted. Typical values are at T_A = 25°C.
Symbol Description
Conditions
Operation
ADP Adapter Voltage Range
V_ADPP
Adapter Present Indicator Threshold
Voltage
V_UVLO
Under-Voltage Lockout (UVLO)
UVLO Hysteresis
Rising Edge
I_OP
I_SLEEP
I_Leakage
Operating Current
Sleep Mode Current
Reverse Leakage Current from
BAT Pin
Charge Current = 100mA
AAT3687: V_BAT = 4.25V
AAT3687-2: V_BAT = 4.25V
V_BAT = 4V, ADP Pin Open
Voltage Regulation
V_{BAT_EOC}¹ End of Charge Voltage Accuracy
ΔV_CH/V_CH Output Charge Voltage Tolerance
V_MIN
Preconditioning Voltage Threshold
V_RCH Battery Recharge Voltage Threshold
Current Regulation
AAT3687 Only
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
R_DS(ON)
Adapter Charging Transistor
On Resistance
V_IN = 5.5V
Min
Typ
Max Units
4.0
5.5 V
4.25
4.5
4.7 V
3.0
V
150
mV
0.75
1.5 mA
0.3
1.0 _μA
1
3
1.0
μA
4.158
4.20
4.242 V
0.5
%
2.8
3.0
3.15 V
V_{BAT_EOC} - 0.1
V
100
1500 mA
10
%
2.0
V
4000
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 -25°C to +85°C
temperature range is guaranteed by design.
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3687.2006.06.1.5