AAT3686
USB Port/AC Adapter
Lithium-Ion/Polymer Battery Charger
Electrical Characteristics1
VADP = 5V, TA = -25°C to +85°C, unless otherwise noted. Typical values are at TA = 25°C.
Symbol Description
Conditions
Min
Typ
Max Units
Operation
USB, ADP USB Port or Adapter Voltage Range
4.0
5.5
4.7
V
V
Adapter Present Indicator
VADPP
USB Present
4.25
4.5
4.5
Threshold Voltage
ADP Voltage Level to Disable
USB Charging
VU_DSBL
4.25
4.7
V
Under-Voltage Lockout
VUVLO
Rising Edge
3.0
150
0.75
0.3
1
V
Under-Voltage Lockout Hysteresis
mV
mA
IOP
Operating Current
CC Charge Current = 500mA
AAT3686: VBAT = 4.25V
AAT3686-1: VBAT = 4.25V
VBAT = 4V, USB,
1.5
1.0
3
ISLEEP
Sleep Mode Current
µA
µA
Reverse Leakage Current from
BAT Pin
ILeakage
1.0
ADP Pins Open
Voltage Regulation
1
VBAT EOC
End of Charge Voltage Accuracy
4.158
2.8
4.2
0.5
3.0
4.242
3.15
V
%
V
V
V
V
_
ΔVBAT/VBAT EOC Voltage Tolerance
VMIN
Preconditioning Voltage Threshold
VRCH
Battery Recharge Voltage Threshold
VBAT EOC - 0.1
_
VUSB_CHR USB Charge Reduction Regulation
VCHR CHR Pin Voltage Accuracy
Current Regulation
No Connection on CHR Pin 4.3
1.9
4.5
2.0
4.64
2.1
ICH
ΔICH/ICH
VADPSET
VUSBH
VUSBL
KIA
Charge Current
100
1500 mA
Charge Current Regulation Tolerance
ADPSET Pin Voltage
10
2.0
%
V
V
V
CC Mode
CC Mode
CC Mode
USBH Pin Voltage
2.0
USBL Pin Voltage
2.0
Current Set Factor: ICHARGE/IADPSET
Current Set Factor: ICHARGE/IUSBH
Current Set Factor: ICHARGE/IUSBL
4000
2000
2000
KIUH
KIUL
Charging Devices
Adapter Charging Transistor
RDS(ON)A
VIN = 5.5V
VIN = 5.5V
0.2
0.4
0.25
0.5
0.35
0.65
Ω
Ω
On Resistance
USB Charging Transistor
On Resistance
RDS(ON)U
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.
4
3686.2006.10.1.9