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LM3429 Datasheet(PDF) 7 Page - Texas Instruments |
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LM3429 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 50 page ICSH (éA) 1.0 0.8 0.6 0.4 0.2 0.0 0 20 40 60 80 100 DUTY CYCLE (%) 1.0 0.8 0.6 0.4 0.2 0.0 0 20 40 60 80 100 100 Hz 500 Hz VIN (V) 1.00 0.99 0.98 0.97 0.96 5 10 15 20 25 30 VIN (V) 1.05 1.03 1.01 0.99 0.97 0 16 32 48 64 80 VIN (V) 100 95 90 85 80 10 15 20 25 30 VIN (V) 100 95 90 85 80 75 70 0 16 32 48 64 80 LM3429 www.ti.com SNVS616F – APRIL 2009 – REVISED JANUARY 2010 Typical Performance Characteristics TA=+25°C and VIN = 14V unless otherwise specified Boost Efficiency Buck-Boost Efficiency vs. vs. Input Voltage Input Voltage VO = 32V (9 LEDs) (1) VO = 20V (6 LEDs) (2) Boost LED Current Buck-boost LED Current vs. vs. Input Voltage Input Voltage VO = 32V (9 LEDs) (1) VO = 20V (6 LEDs) (2) Analog Dimming PWM Dimming VO = 20V (6 LEDs) (2) VO = 20V (6 LEDs) (2) (1) The measurements were made using the standard boost evaluation board from AN-1986. (2) The measurements were made using the standard buck-boost evaluation board from AN-1985. Copyright © 2009–2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM3429 |
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