• Part: RT8450
  • Description: High Voltage Multi-Topology LED Driver
  • Manufacturer: Richtek
  • Size: 282.73 KB
RT8450 Datasheet (PDF) Download
Richtek
RT8450

Description

The RT8450/B is a current mode PWM regulator for LED driving applications. With an 1.5A switch on board and wide input (4.5V to 40V) and/or output (up to 50V)ranges the RT8450/B can operate in any of the three common topologies : Buck, Boost or Buck-Boost.

Key Features

  • High Voltage : VIN Up to 40V, VOUT Up to 50V
  • 1.5A Switch Current
  • Buck, Boost or Buck-Boost Operation
  • Current Mode PWM with 800kHz (RT8450) and 500kHz (RT8450B) Switching Frenquency
  • Easy Dimming : Analog, PWM Digital or PWM Converting to Analog with One External Capacitor
  • Programmable Soft-Start to Avoid Inrush Current
  • Programmable Over Voltage Protection to Limit Output Voltage
  • VIN Under Voltage Lockout and Thermal Shutdown
  • RoHS Compliant and Halogen Free