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LT3756 - LED Controller

General Description

The LT®3756, LT3756-1 and LT3756-2 are DC/DC controllers designed to operate as a constant-current source for driving high current LEDs.

They drive a low side external N-channel power MOSFET from an internal regulated 7.15V supply.

Key Features

  • n 3000:1 True Color PWM™ Dimming n Wide Input Voltage Range: 6V to 100V n Output Voltage Up to 100V n Constant-Current and Constant-Voltage Regulation n 100mV High Side Current Sense n Drives LEDs in Boost, Buck Mode, Buck-Boost Mode, SEPIC or Flyback Topology n Adjustable Frequency: 100kHz to 1MHz n Open LED Protection n Programmable Undervoltage Lockout with Hysteresis n Improved Open LED Status Pin (LT3756-2) n Frequency Synchronization (LT3756-1) n PWM Disconnect Switch Driver n.

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Full PDF Text Transcription for LT3756 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for LT3756. For precise diagrams, and layout, please refer to the original PDF.

FEATURES n 3000:1 True Color PWM™ Dimming n Wide Input Voltage Range: 6V to 100V n Output Voltage Up to 100V n Constant-Current and Constant-Voltage Regulation n 100mV Hi...

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to 100V n Constant-Current and Constant-Voltage Regulation n 100mV High Side Current Sense n Drives LEDs in Boost, Buck Mode, Buck-Boost Mode, SEPIC or Flyback Topology n Adjustable Frequency: 100kHz to 1MHz n Open LED Protection n Programmable Undervoltage Lockout with Hysteresis n Improved Open LED Status Pin (LT3756-2) n Frequency Synchronization (LT3756-1) n PWM Disconnect Switch Driver n CTRL Pin Provides Analog Dimming n Low Shutdown Current: <1µA n Programmable Soft-Start n Thermally Enhanced 16-Lead QFN (3mm × 3mm) and MSOP Packages n AEC-Q100 Qualified for Automotive Applications APPLICATIONS n High Power LED App