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TPS61161 Fiches technique(PDF) 5 Page - Texas Instruments |
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TPS61161 Fiches technique(HTML) 5 Page - Texas Instruments |
5 / 28 page SW Ramp Generator Oscillator Current Sensor OLP CTRL GND C3 L1 + FB Reference Control D1 Error Amplifer 2 1 Rset C2 Vin C1 PWM Control 4 6 Soft Start-up 5 3 COMP TPS61160 TPS61161 www.ti.com SLVS791C – NOVEMBER 2007 – REVISED APRIL 2012 FUNCTIONAL BLOCK DIAGRAM TYPICAL CHARACTERISTICS TABLE OF GRAPHS FIGURE Efficiency TPS61160/1 VIN = 3.6 V; 4, 6, 8, 10 LEDs; L = 22 μH Figure 2 Efficiency TPS61160 Figure 3 Efficiency TPS61161 Figure 4 Current limit TA = 25°C Figure 5 Current limit Figure 6 Easyscale step Figure 7 PWM dimming linearity VIN = 3.6 V; PWM Freq = 10 kHz and 40 kHz Figure 7 Output ripple at PWM dimming 8 LEDs; VIN = 3.6 V; ILOAD = 20 mA; PWM Freq = 10 kHz Figure 9 Switching waveform 8 LEDs; VIN = 3.6 V; ILOAD = 20 mA; L = 22 μH Figure 10 Start-up 8 LEDs; VIN = 3.6 V; ILOAD = 20 mA; L =22 μH Figure 11 Open LED protection 8 LEDs; VIN = 3.6 V; ILOAD = 20 mA; L = 22 μH Figure 12 Copyright © 2007–2012, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): TPS61160 TPS61161 |
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