AAT3681_08 Datasheet, PDF (4/15 Pages) Advanced Analogic Technologies – USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger

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PRODUCT DATASHEET
AAT3681
USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger
Electrical Characteristics¹
V_ADP = 5V, T_A = -40°C to +85°C, unless otherwise noted. Typical values are T_A = 25°C.
Symbol Description
Operation
V_ADP
V_UVLO
I_OP
I_SHUTDOWN
Adapter Voltage Range
Under-Voltage Lockout (UVLO)
UVLO Hysteresis
Operating Current
Shutdown Current
I_LEAKAGE
Reverse Leakage Current from BAT Pin
Voltage Regulation
V_{BAT_EOC}
End of Charge Accuracy
ΔV_CH/V_CH Output Charge Voltage Tolerance
V_MIN
Preconditioning Voltage Threshold
V_RCH
Battery Recharge Voltage Threshold
Current Regulation
I_CH
Charge Current Programmable Range
ΔI_CH/I_CH Charge Current Regulation Tolerance
V_SET
ISET Pin Voltage
K_{I_A}
Current Set Factor: I_CH/I_SET
Charging Devices
R_DS(ON)
Charging Transistor On Resistance
Logic Control/Protection
V_EN(H)
V_EN(L)
V_STAT
I_STAT
V_OVP
I_TK/I_CH
I_TERM/I_CH
Input High Threshold
Input Low Threshold
Output Low Voltage
STAT Pin Current Sink Capability
Over-Voltage Protection Threshold
Pre-Charge Current
Charge Termination Threshold Current
Conditions
Rising Edge
Charge Current = 200mA
V_BAT = 4.25V, EN = GND
V_BAT = 4V, ADP Pin Open
AAT3681 Only
Measured from V_{BAT_EOC}
V_ADP = 5.5V
STAT Pin Sinks 4mA
I_CH = 100mA; AAT3681 Only
Min Typ Max
4.0
7.5
3
4
150
0.5
1
0.3
1
0.4
2
4.158
2.85
4.20
0.5
3.0
-0.1
4.242
3.15
15
300
10
2
800
0.9 1.1
1.6
0.4
0.4
8
4.4
10
10
Units
V
V
mV
mA
μA
μA
V
%
V
V
mA
%
V
Ω
V
V
V
mA
V
%
%
1. The AAT3681 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.
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3681.2007.12.1.5