EVALSF3R-ICE3AR4780JZ - Infineon Technologies

Überblick

12W 5V SMPS Evaluation Board with CoolSET™ ICE3AR4780JZ

Universal input 12W 5V off-line flyback converter power supply board utilizing CoolSET™ ICE3AR4780JZ. The application demo 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. 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 faults (Vcc over voltage, Vcc under voltage, 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 brownout feature, built-in soft start time, built-in and extendable blanking time, frequency jitter feature and external auto-restart enable, etc. The particular features need to be stressed are the best-in-class low standby power and the good EMI performance.

Zusammenfassung der Merkmale

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, VCC Under voltage & Over voltage and Over
temperature
External auto-restart enable pin
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 brownout feature
Overall tolerance of Current Limiting < ±5%
BiCMOS technology for low power consumption and wide VCC voltage range
Soft gate drive with 50Ω turn on resistor