EVAL-3AR4780VJZ - Infineon Technologies

Overview

12W 5V SMPS evaluation board with ICE3AR4780VJZ

Universal input 12W 5V off-line flyback converter power supply utilizing CoolSET™ ICE3AR4780VJZ. The application evaluation board is operated in Discontinuous Conduction Mode (DCM) and is running at 100 kHz switching frequency. It has a single output voltage with secondary side control regulation. It is especially suitable for small power supply such as DVD player, set-top box, game console, charger and auxiliary power of white goods, server, PC and high power system, etc. The ICE3AR4780VJZ is the latest version of the CoolSET™. Besides having the basic features of the F3R CoolSET™ such as Active Burst Mode, propagation delay compensation, soft gate drive, auto restart protection for major fault (Vcc over voltage, Vcc under voltage, adjustable input OVP, over temperature, over-load, open loop and short opto-coupler), it also has the BiCMOS technology design, selectable entry and exit burst mode level, adjustable AC line input over voltage protection feature, built-in soft start time, built-in and extendable blanking time and frequency jitter feature, etc. The particular features are the best-in-class low standby power and the good EMI performance.

Summary of Features

800V avalanche rugged CoolMOS™ with Startup Cell
Active Burst Mode for lowest Standby Power
Selectable entry and exit burst mode level
100kHz internally fixed switching frequency with jittering feature
Auto Restart Protection for Over load, Open Loop, V _CC Under voltage & Over voltage and Over temperature
Over temperature protection with 50°C hysteresis
Built-in 10ms Soft Start
Built-in 20ms and extendable blanking time for short duration peak power
Propagation delay compensation for both maximum load and burst mode
Adjustable input OVP
Overall tolerance of Current Limiting < ±5%
BiCMOS technology for low power consumption and wide V _CC voltage range
Soft gate drive with 50Ω turn on resistor