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| BQ24193_15 Datasheet, PDF (34/49 Pages) Texas Instruments – bq24193 I2C Controlled 4.5-A Single Cell USB/Adapter Charger with Narrow VDC Power Path Management and USB OTG | |||
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bq24193
SLUSBG7 â 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
12V Adapter
1μF
10μF
SYS
bq24193
VBUS
SW
PMID
BOOT
REGN
PGND
2.2μH
47nF
1μF
SYS: 3.5V-4.35V
10μF 10μF
VREF
10kW
Host
10kW
2.2kW
10kW
PG
SYS
STAT
BAT
265W 10μF
SDA
(2A max)
ILIM
SCL
INT
REGN
OTG
CE
TS1
TS2
PSEL
Power Pad
2.27kW
6.86kW
10kW
(103-AT)
Figure 34. bq24193 with PSEL, USB On-The-Go (OTG) and Support JEITA Profile
9.2.1 Design Requirements
Table 18. Design Requirements
DESIGN PARAMETER
Input voltage
Input current limit
Fast charge current
Boost mode output current
EXAMPLE VALUE
3.9 V to 17 V
3000 mA
4000 mA
1.3 A
34
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