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TPS61193PWPR Datasheet(PDF) 20 Page - Texas Instruments

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Part # TPS61193PWPR
Description  High-Performance 3-Channel LED Driver
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS61193PWPR Datasheet(HTML) 20 Page - Texas Instruments

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TPS61193
FB
PWM
OUT1
OUT2
L1
D1
Up to 37 V
4.5...28 V
COUT
RISET
Up to 100 mA/string
SW
LDO
FSET
VIN
VDDIO/EN
PGND
GND
PAD
VIN
ISET
FAULT
VDDIO
FAULT
RFSET
R1
R2
R3
CLDO
BRIGHTNESS
SYNC
EN
CIN
CIN BOOST
OUT3
CFB
TPS61193
SNVSAF4 – OCTOBER 2015
www.ti.com
8 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
TheTPS61193 supports input voltage range from 4.5 V to 40 V. Device internal circuitry is powered from the
integrated LDO.
The TPS61193 uses a simple four-wire control:
VDDIO/EN for enable
PWM input for brightness control
SYNC pin for boost synchronisation (optional)
FAULT output to indicate fault condition (optional)
8.2 Typical Applications
8.2.1 Typical Application for LED Strings
Figure 18 shows the typical application for TPS61193 which supports 3 LED strings with maximum current 100
mA and boost switching frequency is 300 kHz.
Figure 18. Three Strings 100 mA/String Configuration
20
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Copyright © 2015, Texas Instruments Incorporated


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