RT8474
Overview
The RT8474 is a current-mode LED driver supporting wide input voltage range from 4.5V to 50V and output voltage up to 50V. With 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
- Under-Voltage Lockout
- Thermal Shutdown
- RoHS Compliant and Halogen Free
