- HFG610-65
HFG610-65
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Description
The HFG610-65 is a quasi-resonant (QR) flyback regulator with integrated GaN HEMT, which is suitable for high-performance and high-frequency designs. Unlike the conventional QR flyback regulator, the frequency foldback in the HFG610-65 can guarantee high efficiency across the entire load range.
The HFG610-65 is a secondary-side regulation (SSR) based primary regulator, which must work with the secondary-side feedback circuitry (such as the TL431 and optocoupler). The higher frequency shrinks the passive component size and achieves higher power density. The HFG610-65 integrates high-voltage start-up and X-capacitor discharger circuits, in addition to an ultra-low quiescent current (IQ) in burst mode. As a result, power consumption under no load can be below 30mW.
The HFG610-65 adopts the patented valley lock technique to restrain valley jumping from one to another during operation, which can completely prevent audible noise. The wide VCC voltage (VCC) range makes the HFG610-65 suitable for applications with a wide output voltage (VOUT) range without adding auxiliary winding.
The HFG610-65 features advanced protections including primary-sense output over-voltage protection (ZCD OVP), primary-sense output under-voltage protection (ZCD UVP), VCC over-voltage protection (VCC OVP), output overload protection (OLP), internal brown-in (B/I) or brownout (B/O), short-circuit protection (SCP), current-sense open/short protection (CSOP/SSP), internal thermal shutdown (OTP), and under-voltage lockout (UVLO).
The HFG610-65 is available in a QFN-25 (7mmx7mm) package.
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Features & Benefits
- Integrated 700V/165mΩ GaN HEMT
- Novel Patented Quasi-Resonant (QR) Control to Eliminate Audible Noise
- Frequency Foldback and Burst Mode for Low, Light-Load Power Consumption
- Ultra-Wide VCC Voltage (VCC) Range for USB Power Delivery (PD) Applications
- Built-In X-Capacitor Discharger
- Built-In, High-Voltage Start-Up Circuit
- Ultra-Low Standby Power Consumption with PD Protocol IC (<30mW)
- Peak Current Mode Control and Leading Edge Blanking
- Under-Voltage Lockout (UVLO)
- VCC Over-Voltage Protection (OVP)
- Zero-Current Detection (ZCD) Over-Voltage Protection (OVP) and Under-Voltage Protection (UVP)
- Overload Protection (OLP)
- Internal Brownout (B/O) and Brown-In (B/I) Protection
- Short-Circuit Protection (SCP)
- Current-Sensing Open/Short Protection (CSOP/SSP)
- Over-Temperature Protection (OTP)
- Available in a QFN-25 (7mmx7mm) Package

Active Part Numbers:
HFG610GQN-65-Z HFG610GQN-65-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
HFG610-65 Resources
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