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RFQ ListingPower Management ICs
LT3763EFE#TRPBF is the reel-packed E-grade version of the Analog Devices 60V synchronous step-down LED driver controller in a thermally enhanced 28-lead TSSOP. Average current mode control holds inductor current regulation across a 0 V to 55 V output while external MOSFETs and a sense resistor carry up to 20 A. Input and output current monitors, a programmable 200 kHz to 1 MHz switching frequency and 3000:1 True Color PWM dimming make it a common choice for high brightness lighting.
ManufacturerAnalog Devices
Package28-Lead TSSOP (FE) with Exposed Pad
SeriesLT3763
Power IC Specifications
| Parameter | Value / Specification |
|---|---|
| Function / Topology | Fixed frequency synchronous step-down (buck) LED driver controller, average current mode |
| Input Voltage | 6 V to 60 V |
| Output Voltage | 0 V to 55 V |
| Output Current | Up to 20 A with external MOSFETs and sense resistor |
| Switching Frequency | Programmable 200 kHz to 1 MHz by RT resistor or external SYNC clock |
| PWM Dimming Ratio | 3000:1 True Color PWM |
| Regulation Accuracy | ±1.5% voltage; ±6% current |
| Shutdown Current | Less than 2 µA |
| Protection and Diagnostics | Open, short and C/10 fault detection with FAULT flag and thermal shutdown |
| Current Monitoring | Input and output current monitor and limit via IVINMON and ISMON |
| Operating Temperature | −40°C to +125°C junction (E grade) |
| Package / Case | 28-Lead TSSOP (FE) with Exposed Pad |
Power Features & Applications
- Wide 6 V to 60 V input range feeding LED strings anywhere from 0 V to 55 V
- Average current mode control regulates output current up to 20 A with external MOSFETs
- 3000:1 True Color PWM dimming driven from a dedicated PWM_OUT pin
- Regulation accuracy of ±6% on current and ±1.5% on voltage
- Switching frequency programmable from 200 kHz to 1 MHz or locked to an external clock
- Input and output current monitoring with input current limit and FBIN peak power tracking
- Open, short and C/10 fault detection, thermal shutdown and under 2 µA in shutdown
- Thermally enhanced 28-lead TSSOP with exposed pad, rated to 125°C junction in E grade
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Frequently Asked Questions
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