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| BQ24196_17 Datasheet, PDF (34/50 Pages) Texas Instruments – I2C Controlled 2.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG | |||
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bq24196
SLUSB98A â OCTOBER 2012 â REVISED DECEMBER 2014
9 Application and Implementation
www.ti.com
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TIâs customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
A typical application consists of the device configured as an I2C controlled power path management device and a
single cell Li-Ion battery charger for single cell Li-Ion and Li-polymer batteries used in a wide range of tablets and
other portable devices. It integrates an input reverse-blocking FET (RBFET, Q1), high-side switching FET
(HSFET, Q2), low-side switching FET (LSFET, Q3), and BATFET (Q4) between the system and battery. The
device also integrates a bootstrap diode for the high-side gate drive.
9.2 Typical Application
5V USB
SDP/DCP
1μF
6.8μF
SYS
bq24196
VBUS
SW
PMID
BTST
REGN
PGND
1μH
47nF
1μF
SYS: 3.5V-4.45V
10μF 10μF 10μF 10μF
VREF
10kW
Host
PHY
10kW
2.2kW
SYS
PG
STAT
BAT
10kW
SDA
ILIM
SCL
INT
OTG
CE
TS1
TS2
PSEL
Power Pad
353W 10μF
(1.5A max)
REGN
5.52kW
31.23kW
10kW
(103-AT)
Figure 36. bq24196 with PSEL from PHY, Charging from SDP/DCP, and Two Thermistor Connections
34
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