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TPS61160DRVTG4 Datasheet(PDF) 19 Page - Texas Instruments |
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TPS61160DRVTG4 Datasheet(HTML) 19 Page - Texas Instruments |
19 / 39 page ![]() C1 D1 VIN SW FB GND CTRL COMP C2 20 mA TPS61161–Q1 ON/OFF DIMMING CONTROL 38 V Max L1 22 H m 1 F m C3 220 nF R 10 set W 1 F m L1: TDK VLCF5020T-220MR75-1 C1: Murata GRM188R61E105K C2: Murata GRM21BR71H105K D1: ONsemi MBR0540T1 V 3 V to 18 V I 19 TPS61160, TPS61161 www.ti.com SLVS791E – NOVEMBER 2007 – REVISED JULY 2016 Product Folder Links: TPS61160 TPS61161 Submit Documentation Feedback Copyright © 2007–2016, Texas Instruments Incorporated 8 Application and Implementation Information 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 The TPS61160 and TPS61161 provide a complete high-performance LED lighting solution for mobile devices supporting a single string of 6 (TPS61160) or 10 (TPS61161) white LEDs. 8.2 Typical Applications 8.2.1 Typical Application of TPS61161 Figure 16. Typical Application of TPS61161 8.2.1.1 Design Requirements Example requirements for white-LED-driver applications: Table 3. Design Parameters DESIGN PARAMETER EXAMPLE VALUE Inductor 22 µH Minimum input voltage 3 V Number of series LED 10 LED maximum forward voltage (Vf) 3.2 V Schottky diode forward voltage (Vf) 0.2 V Efficiency (η) 85% Switching frequency (SW) 600 kHz |
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