IRS2548D Description
© 2011 International Rectifier 2 IRS2548D Description The IRS2548D is a fully integrated, fully protected 600V LED or switched mode power supply control IC with integrated PFC control for a Boost pre-regulator. The IRS2548D is based on the popular IRS2168D electronic ballast control IC re-designed for use in LED driver or half-bridge power supply applications. The PFC circuitry operates in critical conduction mode...
IRS2548D Key Features
- PFC, system control and half-bridge driver in one IC
- Critical-conduction mode boost-type PFC
- Programmable PFC over-current protection
- Half Bridge Driver
- Half Bridge Over Current Protection
- Variable Frequency Oscillator
- Fixed internal 1.6us HO and LO deadtime
- Internal bootstrap MOSFET
- Internal 15.6V zener clamp diode on Vcc
- Micropower startup (250µA)