LINEAR TECHNOLOGY LT3743EUFD#PBF 电源控制器-产品快照
- 品牌:
- LINEAR TECHNOLOGY
- 型号:
- LT3743EUFD#PBF
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产品介绍
LINEAR TECHNOLOGY LT3743EUFD#PBF 电源控制器
LINEAR TECHNOLOGY LT3743EUFD#PBF LED Driver, Buck (Step Down), 6V to 36V input, 1 Output, 1 MHz switch-freq., 30V/20 A out, QFN-28
LINEAR TECHNOLOGY
The LT3743EUFD#PBF is a fixed frequency synchronous step-down DC/DC Controller designed to drive high current LEDs. The average current mode controller will maintain inductor current regulation over a wide output voltage range of 0V to (VIN - 2V). LED dimming is achieved through analogue dimming on the CTRL_L, CTRL_H and CTRL_T pins and with PWM dimming on the PWM and CTRL_SEL pins. Through the use of externally switched load capacitors, the LT3743 is capable of changing regulated LED current levels within several µs, providing accurate, high speed PWM dimming between two current levels. The switching frequency is programmable from 200kHz to 1MHz through an external resistor on the RT pin. Additional features include voltage regulation and over-voltage protection set with a voltage divider from the output to the FB pin. Overcurrent protection is provided and set by the CTRL_H pin. PWM dimming provides up to 3000:1 dimming ratio CTRL_SEL Dimming provides up to 3000:1 dimming ratio between any current Three-state current control for colour mixing ±6% Current regulation accuracy Average current mode control 2µs Maximum recovery time between any current regulation state Output voltage regulation and open-LED protection Device Topology: Buck (Step Down) No. of Outputs: 1Outputs Output Current: 20A Output Voltage: 30V Driver Case Style: QFN No. of Pins: 28Pins Input Voltage Min: 6V Input Voltage Max: 36V Switching Frequency: 1MHz Operating Temperature Min: -40°C Operating Temperature Max: 125°C Packaging: Each Product Range: - Automotive Qualifications Standard: - Dimming Control Type: PWM MSL: MSL 1 - Unlimited Input Voltage: 6V to 36V LED Driver Application: DLP Projectors, Architectural Lighting SVHC: No SVHC (17-Dec-2015) Topology: Buck (Step Down) Find similar products grouped by common attribute
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