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LT3519 - LED Driver

General Description

The LT®3519/LT3519-1/LT3519-2 are fixed frequency step-up DC/DC converters designed to drive LEDs.

They feature an internal 45V, 750mA low side switch and Schottky diode.

Key Features

  • n Up to 3000:1 True Color PWM™ Dimming n Wide Input Voltage Range Operation from 3V to 30V Transient Protection to 40V n Rail-to-Rail LED Current Sense from 0V to 45V n 45V, 750mA Internal Switch n Internal Schottky Diode n Constant-Current and Constant-Voltage Regulation n Boost, SEPIC, Buck-Boost Mode or Buck Mode Topology n Open LED Protection and Open LED Status Pin n Programmable Undervoltage Lockout with Hysteresis n Fixed Frequency: 400kHz (LT3519), 1MHz (LT3519-1), 2.2MHz (LT3519-2) n In.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LT3519/LT3519-1/LT3519-2 LED Driver with Integrated Schottky Diode FEATURES n Up to 3000:1 True Color PWM™ Dimming n Wide Input Voltage Range Operation from 3V to 30V Transient Protection to 40V n Rail-to-Rail LED Current Sense from 0V to 45V n 45V, 750mA Internal Switch n Internal Schottky Diode n Constant-Current and Constant-Voltage Regulation n Boost, SEPIC, Buck-Boost Mode or Buck Mode Topology n Open LED Protection and Open LED Status Pin n Programmable Undervoltage Lockout with Hysteresis n Fixed Frequency: 400kHz (LT3519), 1MHz (LT3519-1), 2.2MHz (LT3519-2) n Internal Compensation n CTRL Pin Provides Analog Dimming n Low Shutdown Current: <1μA n 16-Lead MSOP Package DESCRIPTION The LT®3519/LT3519-1/LT3519-2 are fixed frequency step-up DC/DC converters designed to drive LEDs.