BQ24160 Datasheet, PDF (11/44 Pages) Texas Instruments – 2.5A, Dual-Input, Single Cell Switchmode Li-Ion Battery Charger with Power Path

bq24160, bq24161
bq24163, bq24168
www.ti.com
PIN
NAME
TS
PIN NO.
bq24160/3
YFF RGE
G5
9
USB
A5-A7 22
Thermal
—
Pad
Pad
SLUSAO0A – NOVEMBER 2011 – REVISED MARCH 2012
PIN FUNCTIONS (continued)
PIN NO.
bq24161/8
YFF RGE
G5
9
A5-A7 22
—
Pad
I/O
DESCRIPTION
I Battery Pack NTC Monitor – Connect TS to the center tap of a resistor divider from
DRV to GND. The NTC is connected from TS to GND. The TS function provides 4
thresholds for JEITA compatibility (160/163/168 only). TS faults are reported by the
I²C interface. See the NTC Monitor section for more details on operation and
selecting the resistor values. Connect TS to DRV to disable the TS function.
I USB Input Power Supply – USB is connected to the external DC supply (AC
adapter or USB port). Bypass USB to PGND with at least a 1μF ceramic capacitor.
— There is an internal electrical connection between the exposed thermal pad and the
PGND pin of the device. The thermal pad must be connected to the same potential
as the PGND pin on the printed circuit board. Do not use the thermal pad as the
primary ground input for the device. PGND pin must be connected to ground at all
times.
TYPICAL APPLICATION CIRCUIT
ADAPTER
VBUS
D+
D-
GND
1 mF 4.7 mF
1 mF 4.7 mF
1 mF
IN
PMIDI
USB
PMIDU
DRV
SW
BOOT
SYS
PGND
BGATE
BAT
STAT
TS
D+
D-
bq24160
INT
SDA
SCL
1.5 mH
0.01 mF
10 mF
VDRV
1 mF
TEMP
PACK+
PACK-
System
Load
VSYS
(1.8V)
GSM
PA
HOST
GPIO1
SDA
SCL
Figure 3. bq24160, Shown with no External Discharge FET, PA Connected to Battery
Copyright © 2011–2012, Texas Instruments Incorporated
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Product Folder Link(s): bq24160 bq24161 bq24163 bq24168