RT8474A
RT8474A is manufactured by Richtek.
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High Voltage Multiple-Topology LED Driver with Open Detection
General Description
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 efficiency is achieved by a 100mV current sensing control. LED dimming control can be done from either analog or PWM signal. The RT8474A provides an internal soft-start function to avoid inrush current and thermal shutdown to prevent the device from overheat.
The RT8474A is available in the SOP-8 (Exposed pad) package.
Features
- High Voltage : VIN...
