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.
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.
RT8450B Datasheet
