Power Integrations InnoSwitch™3-AQ Switcher ICs

Power Integrations InnoSwitch™3-AQ Switcher ICs are CV/CC QR Flyback Switcher ICs integrated with 750V/900V/1700V switch and FluxLink™ feedback. These switcher ICs combine primary controllers, secondary controllers, and safety-rated feedback into a single IC. The InnoSwitch3-AQ switches offer protection features such as line over- and under-voltage protection, output over-voltage and over-current limiting, and over-temperature shutdown. These switcher ICs incorporate up to 95% efficiency across the full load range, <15mW no-load input power, and 30V to >1000V_DC wide input voltage range. Typical applications include traction inverter emergency power supply, high-voltage to low-voltage DC to DC converters, battery management systems, and onboard chargers.

Features

Up to 90% efficiency across the full load range
Incorporates a multi-mode Quasi-Resonant (QR) / CCM flyback controller, 750V/900V/1700V switch, and secondary-side sensing
Integrated FluxLink™ – a reinforced isolation feedback link
30V to >1000V_DC wide input voltage range
<15mW no-load input power
Low heat dissipation
Advanced protection/safety:
- Auto-restart fault response for output over-voltage and over-current
- Accurate programmable output over-current threshold
- Programmable input undervoltage

100% production HIPOT testing
EN IEC 60747-17 (VDE 0884-17) approved for INN3977CQ
Reinforced isolation per IEC60664-1
AEC-Q100 qualified
Halogen-free and RoHS compliant

Applications

Traction inverter emergency power supply
High-voltage to low-voltage DC to DC converters (APM)

Battery management systems
Onboard chargers

Power Integrations InnoSwitch™3-AQ Switcher ICs

Features

Applications

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