ICE5ASAG
Overview
Infineon's latest 5th generation fixed frequency flyback PWM controller offers high performance and a comprehensive suite of protection to increase system robustness.
Summary of Features
- 100kHz maximum switching frequency
- Brown in protection, fast and robust start-up operation with cascode configuration
- 3 level selectable entry/exit active burst mode profile (optional)
- Built-in digital soft-start
- Cycle by cycle peak current limitation
- Support both DCM and CCM operation with slope compensation
- Integrated error amplifier to support direct feedback typical with non-isolated flyback topology
- Digital frequency reduction with decreasing load for higher efficiency
- Adjustable line input over voltage protection (optional)
- VCC pin short to ground protection
- OLP, output short, OTP with hysteresis and VCC over/under voltage protection
- Auto-restart for all protection features
Benefits
- Reduce BOM count and cost with integrated line input over voltage protection and error amplifier
- Increase mid and light load efficiency with digital frequency reduction
- High power delivery with slope compensation for CCM operation
Potential Applications
- Offline aux SMPS for server, PC power and major home appliances (e.g. air conditioning, washing machines and refrigerator)
- Offline main SMPS for adapter, set-top-box, water purifier, TV, industrial SMPS and POE
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