Intelligent Digital Multi-Mode Flyback Controller HY1656Q



Offline Charger
Programmable travel adapter
USB PD Charger
TV / Monitor Standby Power
Notebook Adapter


HY1656Q is an intelligent digital multi-mode Flyback controller with high voltage start up on chip. The newly developed architecture is inherent features to meet regulatory requirements of the industry. HY1656Q integrates rich protections and features such as line compensation, slope compensation, transformer short protection, output over-voltage protection, VCC OVP, over load protection, overtemperature protection, brown in and brown-out. HY1656Q is available with the SOP7L package.


On Chip High Voltage Start Up
Intelligent Digital Multi-Mode Control
Peak Current Mode Control at Burst-Mode /PFM/DCM/QR
Switching Frequency Dithering to Improve EMI
Adaptive MOSFET Gate Drive to Balance Switching Loss and EMI
MOSFET Gate Voltage is Clamped at 12V
Protection Features
   Output OVP
   Transformer Saturation Protection
   Over Load Protection
   Brown Out/In Protection
   On chip OTP
   Current Sensing Open Protection
Line Feed-forward Compensation
Power Consumption < 20mW
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