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TPS61040 Datasheet(PDF) 16 Page - Texas Instruments |
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TPS61040 Datasheet(HTML) 16 Page - Texas Instruments |
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16 / 22 page  www.ti.com VIN SW FB EN GND L1 10 µH D1 C2 1 µF C1 4.7 µF RS 82 Ω VCC = 2.7 V to 6 V PWM 100 Hz to 500 Hz D2 24 V (Optional) L1: Murata LQH4C100K04 D1: Motorola MBR0530 C1: Tayo Yuden JMK212BY475MG C2: Tayo Yuden TMK316BJ105KL VIN SW FB EN GND L1 10 µH D1 MBRM120L C2† 100 nF C1 4.7 µF RS 110 W VCC = 2.7 V to 6 V R1 120 kW R2 160 kW Analog Brightness Control 3.3 V ≅ Led Off 0 V ≅ Iled = 20 mA D2 24 V (Optional) L1: Murata LQH4C3R3M04 D1: Motorola MBR0530 C1: Tayo Yuden JMK212BY475MG C2: Standard Ceramic Capacitor TPS61040 TPS61041 SLVS413C – OCTOBER 2002 – REVISED AUGUST 2007 Figure 22. White LED Supply With Adjustable Brightness Control Using a PWM Signal on the Enable Pin, Efficiency Approx. Equals 86% at VIN = 3 V, ILED = 15 mA A. A smaller output capacitor value for C2 causes a larger LED ripple. Figure 23. White LED Supply With Adjustable Brightness Control Using an Analog Signal on the Feedback Pin 16 Submit Documentation Feedback Copyright © 2002–2007, Texas Instruments Incorporated Product Folder Link(s): TPS61040 TPS61041 |
Similar Part No. - TPS61040_07 |
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Similar Description - TPS61040_07 |
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