RT8566 Datasheet PDF - Richtek High Voltage 8-CH LED Driver Specs

RT8566 - High Voltage 8-CH LED Driver

Datasheet Summary

Description

The RT8566 is an 8-CH LED driver capable of delivering 120mA for each channel.

The RT8566 is a current mode boost converter with an adjustable switching frequency via the RT pin from 100kHz to 1MHz and a wide VIN range from 9V to 28V.

Features

Wide Input Supply Voltage Range : 9V to 28V.
Adjustable Boost Controller Switching Frequency from 100kHz to 1MHz.
Programmable Channel Current.
Channel Current Matching : ±1.5%.
External Dimming Control.
Boost MOSFET Over Current Protection.
Automatic LED Open/Short Protection to Avoid Output Over Voltage.
VCC Under Voltage Lockout.
Adjustable Over Voltage Protection.
Under Voltage Protection.
Thermal Shutdown Protection.
Abnormal Stat.

Datasheet Details

Part number	RT8566
Manufacturer	Richtek
File Size	196.70 KB
Description	High Voltage 8-CH LED Driver
Datasheet	RT8566 Datasheet
Additional preview pages of the RT8566 datasheet.

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Full PDF Text Transcription

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® RT8566 High Voltage 8-CH LED Driver General Description The RT8566 is an 8-CH LED driver capable of delivering 120mA for each channel. The RT8566 is a current mode boost converter with an adjustable switching frequency via the RT pin from 100kHz to 1MHz and a wide VIN range from 9V to 28V. The PWM output voltage loop selects and regulates the LED pin with the highest voltage string to 0.6V, hence allowing voltage mismatches between LED strings. The RT8566 automatically detects and disconnects any unconnected and/or broken strings during operation from PWM loop to prevent VOUT from over voltage. The 1.5% matched LED currents on all channels are simply programmed with a resistor. A very high contrast ratio true digital PWM dimming can be achieved by driving the PWM pin with a PWM signal.

Published: May 27, 2016 |