Overview
The FAN6757MRMX is a next-generation Green Mode PWM controller developed by onsemi. This controller incorporates innovative mWSaver™ technology, which significantly reduces standby and no-load power consumption, ensuring compliance with worldwide Standby Mode efficiency guidelines. The device is designed for cost-effective flyback converter designs and is suitable for various applications requiring extremely low standby power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Topology | Flyback, Forward |
| Input / Supply Voltage - Min | 11 V |
| Input / Supply Voltage - Max | 30 V |
| Switching Frequency | 65 kHz |
| Operating Temperature | -40°C to 105°C (TA) |
| Package / Case | SOIC-8 |
| No-Load Power Consumption | < 30 mW at 230 V AC (EMI Filter Loss Included) |
| Startup Voltage | 17 V |
| Duty Cycle | 82.5% |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit |
Key Features
- mWSaver™ Technology: Dramatically reduces standby and no-load power consumption.
- AX-CAP® Technology: Eliminates X-capacitor discharge resistor losses while meeting IEC61010-1 safety requirements.
- Frequency Hopping: Reduces EMI emission through proprietary frequency-hopping function.
- Slope Compensation: Built-in synchronized slope compensation for stable Peak-Current-Mode control.
- Line Compensation: Ensures constant output power limit over the entire universal line voltage range.
- Burst Mode Operation: Operates in burst mode at light-load conditions to reduce power consumption.
- High-Voltage Startup Circuit: 500 V high-voltage JFET startup circuit to eliminate startup resistor losses.
- Advanced Protections: Includes VDD under-voltage lockout (UVLO), internal overload/open-loop protection (OLP), over-temperature protection (OTP), VDD over-voltage protection (VDD OVP), and current-sense short-circuit protection (SSCP).
- Soft-Start and Brown-In/Brownout Recovery: Built-in 7 ms soft-start and brown-in/brownout recovery features.
Applications
The FAN6757MRMX is suitable for a variety of applications, including:
- Single-Ended Topologies such as Flyback and Forward Converters.
- General usage in many different applications requiring low standby power consumption.
Q & A
- What is the primary function of the FAN6757MRMX?
The FAN6757MRMX is a Green Mode PWM controller designed for flyback and forward converter applications, focusing on reducing standby and no-load power consumption.
- What is mWSaver™ technology?
mWSaver™ technology is an innovative feature that significantly reduces standby and no-load power consumption, enabling compliance with worldwide Standby Mode efficiency guidelines.
- How does AX-CAP® technology benefit the FAN6757MRMX?
AX-CAP® technology eliminates X-capacitor discharge resistor losses while meeting IEC61010-1 safety requirements, minimizing losses in the EMI filter stage.
- What are the key protection features of the FAN6757MRMX?
The device includes VDD under-voltage lockout (UVLO), internal overload/open-loop protection (OLP), over-temperature protection (OTP), VDD over-voltage protection (VDD OVP), and current-sense short-circuit protection (SSCP).
- What is the operating temperature range of the FAN6757MRMX?
The operating temperature range is -40°C to 105°C (TA).
- What is the typical switching frequency of the FAN6757MRMX?
The typical switching frequency is 65 kHz.
- Does the FAN6757MRMX support burst mode operation?
- What package type is the FAN6757MRMX available in?
The FAN6757MRMX is available in an SOIC-8 package.
- Is the FAN6757MRMX RoHS compliant?
- What are some common applications for the FAN6757MRMX?
