BQ24180 Datasheet, PDF (9/39 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and Accessory Power Connection

bq24180
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SLUSA02 A – FEBRUARY 2010 – REVISED FEBRUARY 2010
TYPICAL APPLICATION CIRCUITS
VBUS = 5V, I_{IN_LIMIT} = 500mA, I_CHARGE = 1A, V_BAT = 3.5--4.44V (Adjustable), Safety Timer = 27 minute default w/
12 seconds watchdog
VBUS
VBUS
D+
D-
GND
C1
1 µF
C3
4.7 µF
C7
1 µF
VBUS
USB PHY
Hardware Disable
C8
1µF
POWER FOR
ACCESSORY
VBUS
SW
PMID
BOOT
PGND
bq24180
CSIN
DRV
CSOUT
PSEL
CD
TS
SCL
SDA
C4
10 nF
RSNS
68 mW
C2
10 µF
TEMP
PACK +
PACK -
C5
C6
0.1 µF
1 µF
VAUX
R1
10 kW
R2
R4
10 kW 10 kW
SYSTEM
HOST
R3
4 kW
Figure 2. I²C Controlled 1-Cell USB Charger Application Circuit
Copyright © 2010, Texas Instruments Incorporated
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