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TPS61193PWPR Datasheet(PDF) 20 Page - Texas Instruments |
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TPS61193PWPR Datasheet(HTML) 20 Page - Texas Instruments |
20 / 33 page 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 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated |
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