AAT3681 Datasheet, PDF (4/15 Pages) Advanced Analogic Technologies – USB Port or AC Adapter Lithium-Ion/Polymer Battery Charger

AAT3681
USB Port or AC Adapter
Lithium-Ion/Polymer Battery Charger
Electrical Characteristics¹
V_ADP = 5V, T_A = -25°C to +85°C, unless otherwise noted. Typical values are T_A = 25°C.
Symbol Description
Operation
V_ADP
V_UVLO
Adapter Voltage Range
Under-Voltage Lockout (UVLO)
UVLO Hysteresis
I_OP
Operating Current
I_SHUTDOWN 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
Min
4.0
Rising Edge
3
Charge Current = 200mA
V_BAT = 4.25V, EN = GND
V_BAT = 4V, ADP Pin Open
4.158
AAT3681 Only
Measured from V_{BAT_EOC}
2.85
15
V_ADP = 5.5V
1.6
STAT Pin Sinks 4mA
I_CH = 100mA; AAT3681 Only
Typ Max Units
6.5 V
4
V
150
mV
0.5
1
mA
0.3 1
µA
0.4 2
µA
4.20 4.242 V
0.5
%
3.0 3.15 V
-0.1
V
300 mA
10
%
2
V
800
0.9 1.1 Ω
V
0.4
V
0.4 V
8
mA
4.4
V
10
%
10
%
1. The AAT3681 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.
4
3681.2007.01.1.2