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SN3218 - 18 Channel LED Driver

Download the SN3218 datasheet PDF. This datasheet also covers the SN3218-SI variant, as both devices belong to the same 18 channel led driver family and are provided as variant models within a single manufacturer datasheet.

General Description

SN3218 is comprised of 18 constant current channels each with independent PWM control, designed for driving LEDs.

The output current of each channel can be set at up to 23mA (Max.) by an external resistor.

Key Features

  • z 2.7V to 5.5V supply z I2C interface, automatic address increment function z Internal reset register z Modulate LED brightness with 256 steps PWM z Each channel can be controlled independently z -40°C to +85°C temperature range z QFN-24 (4mm × 4mm) package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SN3218-SI-ENTechnolog.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SN3218
Manufacturer SI-EN Technolog
File Size 359.38 KB
Description 18 Channel LED Driver
Datasheet download datasheet SN3218 Datasheet

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Part Number Description
SN3218A 18 Channel 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.

View original datasheet text
SN3218 18 Channel LED Driver Description SN3218 is comprised of 18 constant current channels each with independent PWM control, designed for driving LEDs. The output current of each channel can be set at up to 23mA (Max.) by an external resistor. The average LED current of each channel can be changed in 256 steps by changing the PWM duty cycle through an I2C interface. The chip can be turned off by pulling the SDB pin low or by using the software shutdown feature to reduce power consumption. The slave address is fixed “1010 1000”. SN3218 is available in QFN-24 (4mm × 4mm). It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C. Features z 2.7V to 5.