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LP85571 データシート(PDF) 37 Page - Texas Instruments |
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LP85571 データシート(HTML) 37 Page - Texas Instruments |
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37 / 49 page  VIN LP8557I FB SW 1.1 ” 9OUT / VIN ” 11 L1 D1 VDD CIN COUT LED1 LED2 LED3 LED4 LED5 LED6 GNDs SCL SDA 2.7 V ± 5.5 V 7 V ± 28 V PWM PWM VOUT SDA SCL 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 4ms/DIV VDD 5V/DIV ILED 20mA/DIV 10V/DIV VBOOST VPWM 5V/DIV LP8557, LP85571 www.ti.com SNVSA15B – DECEMBER 2013 – REVISED DECEMBER 2015 Figure 46. Shutdown Operation Figure 45. Start-Up With a 100% Input PWM Duty 9.2.2 LP8557I PWM and I2C Device Option Figure 47. Typical Application With LP8557I PWM and I2C Device Option 9.2.2.1 Design Requirements See Design Requirements. 9.2.2.2 Detailed Design Procedure See Detailed Design Procedure. 9.2.2.3 Application Curves See Application Curves. Copyright © 2013–2015, Texas Instruments Incorporated Submit Documentation Feedback 37 Product Folder Links: LP8557 LP85571 |
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