BQ24150A Datasheet, PDF (7/41 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support

bq24150A
bq24151A
www.ti.com ..................................................................................................................................................................................................... SLUS931 – APRIL 2009
TYPICAL APPLICATION CIRCUITS
VBUS = 5 V, I_(CHARGE) = 1250 mA, VBAT = 3.5 V to 4.44 V (adjustable), Safety Timer = 32 minutes or 32
seconds.
V _BUS
C _IN
1 mF
VBUS
SW
U1
bq24150A/1A
VAUX
PMID
CIN ^{4.7 mF}
10 kW
10 kW 10 kW
SCL
SDA
STAT
10 kW
I2C BUS
OTG
HOST
10 kW
SCL
SDA
STAT
OTG
BOOT
PGND
CSIN
CSOUT
AUXPWR
VREF
L_O 1.0 mH
R _SNS
C _BOOT
10 nF
68 mW
CCSIN
0.1 mF
CO
10 mF
V _BAT
PACK +
+
PACK -
C _VREF
1 mF
CAUXPWR
1 mF
Figure 1. I²C Controlled 1-Cell Charger Application Circuit
VBUS = 5 V, I_{(IN_LIMIT)} = 500 mA, V_OUT = 3.5 V to 4.44V (adjustable), Safety Timer = 32 minutes or 32 seconds.
VBUS
CIN
1 mF
VBUS
SW
U1
Bq24150A/1A
VAUX
CIN _{4.7 mF} ^PMID
BOOT
PGND
10 kW
10 kW _{10 kW}
10 kW
I2C BUS
SCL
SDA
STAT
OTG
HOST
10 kW
SCL
SDA
STAT
OTG
CSIN
CSOUT
AUXPWR
VREF
LO 1.0 mH
CBOOT
10 nF
RSNS
68 mW ^CO
10 mF
CCSIN ^{0.1 mF}
Host
Charge
Controller
CAUXPWR
C _VREF 1 mF
1 mF
CCSOUT
0.1 mF
VOUT _Host-
Controlled
Switch
Q
VSYS
+PACK ⁺
PACK -
Figure 2. I²C Controlled 1-Cell Pre-Regulator Application
Copyright © 2009, Texas Instruments Incorporated
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