RT8577A - Richtek

RT8577A High Voltage 4-CH LED Driver

The RT8577A is an 4-CH LED driver capable of delivering 120mA for each channel. The RT8577A is a current mode boost converter with an adjustable switching frequency via the RT pin from 200kHz to 2.1MHz and a wide VIN range from 5.5V to 40V. The PWM output voltage loop selects and regulates the LED pin with the highest voltage string to 0.6V, hence allowing v.

Features

 Wide Input Supply Voltage Range : 5.5V to 40V
 Adjustable Boost Controller Switching Frequency from 200kHz to 2.1MHz
 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
 Thermal Shutdown Protection
 Abnormal Status Indicator for OVP/Short/OTP Condition
 AEC-Q100 Grade 3 Certification
 RoHS Compliant and Halogen Free Applications
 Automotive Infotainment
 LCD TV, Monitor Displa.