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SN3350 - 40V LED driver

Download the SN3350 datasheet PDF. This datasheet also covers the SN3350-SI variant, as both devices belong to the same 40v led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The SN3350 is a continuous mode inductive step-down converter, designed for driving a single LED or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage.

Key Features

  • z Simple low parts count z Internal 40V power switch z Wide input voltage range: 6V to 40V z Up to 750mA output current（SOT89-5 package） z High efficiency (up to 95% ) z Typical 1200：1 dimming rate z Typical 5% output current accuracy z Single pin on/off and brightness control using DC voltage or PWM z Up to 1MHz switching frequency z Inherent open-circuit LED protection z Thermal shutdown protection circuitry z Two packages available for different current.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SN3350-SI-ENTechnology.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SN3350
Manufacturer SI-EN Technology
File Size 398.63 KB
Description 40V LED driver
Datasheet download datasheet SN3350 Datasheet

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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.

View original datasheet text
SN3350 40V LED driver with internal switch General Description The SN3350 is a continuous mode inductive step-down converter, designed for driving a single LED or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The chip operates from an input supply between 6V and 40V and provides an externally adjustable output current of up to 750mA. Depending upon supply voltage and external components, this can provide up to 30 watts of output power. The SN3350 includes an integrated output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. Output current can be adjusted linearly by applying an external control signal to the ADJ pin.