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SGM3758 - Boost WLED Driver

General Description

With a 40V rated integrated switch FET, the SGM3758 is a boost converter that drives LEDs in series.

The boost converter has a 40V, 3A internal MOSFET; thus it can drive single or parallel LED strings for small to large size panel backlighting.

Key Features

  • integrated open LED protection that disables the SGM3758 to prevent the output voltage from exceeding the IC absolute maximum voltage ratings during open LED conditions. When the device is working, if the STROBE pin is pulled up, it will turn on flash mode within 100µs. And the feedback voltage is regulated to 5× of the backlight mode that determined by the PWM signal duty cycle. And it will turn to backlight mode within 100µs when the STROBE pin is pulled down or the strobe signal keeps high ov.

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Other Datasheets by SG Micro

Part Number Description
SGM3752 Boost WLED Driver
SGM3759 Boost WLED Driver
SGM3710 SPDT Analog Switch
SGM3713 SPST Analog Switch
SGM3714 SPST Analog Switch
SGM3716 Negative Voltage SPDT Switch
SGM3717 SPDT Negative Signal Handling Analog Switch
SGM3718 Dual SPDT Analog Switch
SGM3719 SPDT Negative Signal Handling Analog Switch
SGM3720 38V Boost LED Driver

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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SGM3758 38V High Efficiency, Boost WLED Driver with Strobe Interface for Flash Mode GENERAL DESCRIPTION With a 40V rated integrated switch FET, the SGM3758 is a boost converter that drives LEDs in series. The boost converter has a 40V, 3A internal MOSFET; thus it can drive single or parallel LED strings for small to large size panel backlighting. And it is quite suitable for smart phone image capture using display device as a flash mode light source, as it can output up to 200mA current at 30V for 320ms when the strobe signal is active. The backlight mode default white LED current is set with the external sensor resistor, RSET, and the feedback voltage is regulated to 200mV, as shown in the typical application.