HY3655E/H/X 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 from around the world.
HY3655E/H/X integrates rich protections and features such as line compensation, slope compensation, transformer short protection, output over-voltage protection, over-temperature protection, brown in and brown-out, sense resistor short protection.
HY3655E/H/X has 3 options:
HY3655E: 89kHz switching frequency
HY3655H: 130kHz switching frequency
HY3655X: 200kHz switching frequency
HY3655E/H/X is available with the SOP7 package.
· On Chip High Voltage Start Up
· Intelligent Digital Multi-Mode Control
· Peak Current Mode Control at Burst-Mode /PFM/DCM/CCM
· Continuous-Conduction Mode (CCM) at Low Line(LL), QR at High Line(HL) to Balance the Switching Loss and the Conduction Loss
· Over-load Period up to 56ms
· Switching Frequency Dithering to Improve EMI
· Adaptive MOSFET Gate Drive to Balance Switching Loss and EMI
· GaN FET Gate Voltage is Clamped at 6.5V
· Meet Limited Power Source (LPS) safety requirements
· Rich Protection Features
§ Output OVP
§ VCC OVP
§ Transformer Saturation Protection
§ Current Sensor Resistor Short Protection
§ Output Over Load Protection
§ On chip OTP
· Line Feed-forward Compensation
· Brown-in and Brown-out
· Power Consumption < 20mW
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