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LP85571 датащи(PDF) 36 Page - Texas Instruments |
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LP85571 датащи(HTML) 36 Page - Texas Instruments |
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36 / 49 page ![]() VIN = 200 mV/div ILED = 1 A/div IIN = 1 A/div VTX = 5 V/div 2ms/DIV VDD 5V/DIV ILED 20mA/DIV 10V/DIV VBOOST VPWM 5V/DIV VIN = 200 mV/div ILED = 1 A/div IIN = 1 A/div VTX = 5 V/div ms/DIV VDD 5V/DIV ILED 20mA/DIV 10V/DIV VBOOST VPWM 5V/DIV VIN = 200 mV/div ILED = 1 A/div IIN = 1 A/div VTX = 5 V/div 1Ps/DIV VSW 10V/DIV IL 500mA/DIV 100mV/DIV VFBac VIN = 200 mV/div ILED = 1 A/div IIN = 1 A/div VTX = 5 V/div 2ms/DIV VDD 5V/DIV ILED 10mA/DIV 10V/DIV VBOOST VPWM 5V/DIV VIN = 200 mV/div ILED = 1 A/div IIN = 1 A/div VTX = 5 V/div 1Ps/DIV VSW 10V/DIV IL 500mA/DIV 100mV/DIV VFBac VIN = 200 mV/div ILED = 1 A/div IIN = 1 A/div VTX = 5 V/div 1Ps/DIV VSW 10V/DIV IL 500mA/DIV 100mV/DIV VFBac LP8557, LP85571 SNVSA15B – DECEMBER 2013 – REVISED DECEMBER 2015 www.ti.com 9.2.1.3 Application Curves Figure 39. Steady State Operation With Light Load Figure 40. Steady State Operation With Medium Load (200 µA/String, 6 Strings) (5 mA/String, 6 Strings) Figure 41. Steady State Operation With Heavy Load Figure 42. Start-Up With a 1% Input PWM Duty (25 mA/String, 6 Strings) Figure 44. Start-Up With a 99% Input PWM Duty Figure 43. Start-Up With a 50% Input PWM Duty 36 Submit Documentation Feedback Copyright © 2013–2015, Texas Instruments Incorporated Product Folder Links: LP8557 LP85571 |
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