AAT3686 Datasheet, PDF (4/24 Pages) Advanced Analogic Technologies – USB Port/AC Adapter Lithium-Ion/Polymer Battery Charger

AAT3686
USB Port/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 at T_A = 25°C.
Symbol Description
Conditions
Min
Operation
USB, ADP USB Port or Adapter Voltage Range
4.0
V_ADPP
Adapter Present Indicator
Threshold Voltage
USB Present
4.25
V_{U_DSBL}
ADP Voltage Level to Disable
USB Charging
4.25
V_UVLO
Under-Voltage Lockout
Under-Voltage Lockout Hysteresis
Rising Edge
I_OP
I_SLEEP
I_Leakage
Operating Current
Sleep Mode Current
Reverse Leakage Current from
BAT Pin
CC Charge Current = 500mA
AAT3686: V_BAT = 4.25V
AAT3686-1: V_BAT = 4.25V
V_BAT = 4V, USB,
ADP Pins Open
Voltage Regulation
V_{BAT_EOC}¹ End of Charge Voltage Accuracy
ΔV_BAT/V_BAT EOC Voltage Tolerance
V_MIN
Preconditioning Voltage Threshold
V_RCH
Battery Recharge Voltage Threshold
V_{USB_CHR} USB Charge Reduction Regulation
V_CHR
CHR Pin Voltage Accuracy
Current Regulation
4.158
2.8
No Connection on CHR Pin 4.3
1.9
I_CH
Charge Current
100
ΔI_CH/I_CH Charge Current Regulation Tolerance
V_ADPSET ADPSET Pin Voltage
CC Mode
V_USBH USBH Pin Voltage
CC Mode
V_USBL USBL Pin Voltage
CC Mode
K_IA
Current Set Factor: I_CHARGE/I_ADPSET
K_IUH
Current Set Factor: I_CHARGE/I_USBH
K_IUL
Current Set Factor: I_CHARGE/I_USBL
Charging Devices
R_DS(ON)A
Adapter Charging Transistor
On Resistance
V_IN = 5.5V
0.2
R_DS(ON)U
USB Charging Transistor
On Resistance
V_IN = 5.5V
0.4
Typ
4.5
4.5
3.0
150
0.75
0.3
1
1.0
4.2
0.5
3.0
V_{BAT_EOC} - 0.1
4.5
2.0
10
2.0
2.0
2.0
4000
2000
2000
0.25
0.5
Max Units
5.5 V
4.7 V
4.7 V
V
mV
1.5 mA
1.0
3
µA
µA
4.242 V
%
3.15 V
V
4.64 V
2.1 V
1500 mA
%
V
V
V
0.35 Ω
0.65 Ω
1. The AAT3686 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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3686.2006.10.1.9