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TPS61042DRBR Datasheet(PDF) 6 Page - Texas Instruments |
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TPS61042DRBR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 27 page ![]() www.ti.com TYPICAL CHARACTERISTICS 70 72 74 76 78 80 82 84 86 88 1 2 3 4 5 6 4 LEDs ≈ 13 V, CO = 1 µF VI – Input Voltage – V IO = 15 mA 70 72 74 76 78 80 82 84 86 88 90 0.1 1 10 100 IO – Output Current – mA 4 LEDs ≈ 13 V, CO = 1 µF VI = 4.2V VI = 3.6V VI = 2.4V TPS61042 SLVS441C – DECEMBER 2002 – REVISED MARCH 2007 Table of Graphs FIGURE vs LED current Figure 2 η Efficiency vs Input voltage Figure 3 IQ Operating Quiescent Current into VIN vs Input voltage and Temperature Figure 4 V(FB) Feedback voltage vs Temperature Figure 5 I(FB) Feedback current vs Temperature Figure 6 vs Temperature Figure 7 Main switch Q1 vs Input voltage Figure 8 rds(on) vs Temperature Figure 9 LED switch Q2 vs Input voltage Figure 10 ILED Average LED current vs PWM duty cycle on CTRL pin Figure 11 Soft start Figure 12 PFM operation (fixed peak current control) Figure 13 Burst mode operation (fixed peak current Figure 14 control) PWM dimming Figure 15 Efficiency Efficiency vs vs LED Current Input Voltage Figure 2. Figure 3. 6 Submit Documentation Feedback |
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