RT8474A
Overview
The RT8474A is a current-mode LED driver supporting wide input voltage range from 4.5V to 50V in multiple topologies. With the internal 500kHz operating frequency, the size of the external PWM inductor and input/output capacitors can be minimized.
- High Voltage : VIN Up to 50V, VOUT Up to 50V
- Support Multiple-Topologies (Buck / Boost / Buck- Boost)
- Built-In 2A Power Switch
- Current-Mode PWM Control
- 500kHz Fixed Switching Frequency
- Analog or PWM Control Signal for LED Dimming
- Internal Soft-Start to Avoid Inrush Current
- OVP Pin for Adjustable OVP Level Protection (for Buck Only)
- Under-Voltage Lockout
- Thermal Shutdown
