RT8494 Overview
The RT8494 is a current mode PWM controller designed to drive an external MOSFET for high current LED applications. With a current sense amplifier threshold of 190mV, the LED current is programmable with one external current sense resistor. With the maximum operating input voltage of 36V and output voltage up to 90V, the RT8494 is ideal for Buck, Boost or Buck-Boost operation.
RT8494 Key Features
- High Voltage Capability : VIN up to 36V, LED Sensing Threshold mon Mode Voltage up to 90V
- Buck, Boost or Buck-Boost Operation
- Programmable Switching Frequency
- Easy Dimming Control : Analog or Digital
- Programmable Soft-Start to Avoid Inrush Current
- Programmable Over-Voltage Protection
- VIN Under-Voltage Lockout and Thermal Shutdown
- AEC-Q100 pliance
RT8494 Applications
- High Voltage Capability : VIN up to 36V, LED Sensing Threshold mon Mode Voltage up to 90V