LT3763EFE#TRPBF

LT3763 is a fixed frequency, synchronous, step-down DC/DC controller. It is designed to accurately regulate output currents upto 20A. The average current mode controller will maintain inductor current regulation over a wide output voltage range from 0V to 55V. Output current is set by analogue voltages on the CTRL pins and an external sense resistor. Voltage regulation and overvoltage protection are set with a voltage divider from the output to the FB pin. The switching frequency is programmable from 200KHz to 1MHz through an external resistor on the RT pin or with the SYNC pin and an external clock signal. Input and output current sensing provides input current limiting and an accurate measurement of these currents. The FBIN pin is provided for applications requiring a peak power tracking function. It is widely used in application such as high power architectural lighting, automotive lighting, aviation and marine strobe lights, solar-powered chargers, laser diodes etc.

• 3000:1 true colour PWM™ dimming
• Voltage regulation accuracy is ±1.5%
• Current regulation accuracy is ±6%
• Input voltage range is 6V to 60V
• Shutdown current is 2µA maximum
• Control pin for thermal control of load current
• Input and output current monitor and limit
• Open, short, and C/10 fault detection, PWM driver output for LED applications
• Operating temperature is -40°C to 125°C
• Packaging style is 28-lead plastic TSSOP

บันทึก

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