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Product Detailed Parameters
- Description：IC PFC CTRLR CRM/TRANSITION 8SOP
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Mode：Critical Conduction (CRM), Discontinuous (Transition)
- Frequency - Switching：-
- Voltage - Supply：12V ~ 22V
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Current - Startup：40 µA
- Grade：-
- Qualification：-
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Overview
The FAN7529MX is a Power Factor Correction (PFC) controller manufactured by onsemi, designed for boundary mode and transition mode operation. It operates within a supply voltage range of 12V to 22V and features a low startup current of 40 µA. The device supports surface-mount installation in an 8-SOIC package with a width of 3.90mm. It functions reliably across an extended temperature range from -40°C to +125°C. Classified under PMICs, this component integrates critical control logic for efficient power conversion applications.
Feature Summary
- Supports Critical Conduction Mode (CRM) and Transition Mode (intermittent) PFC control strategies
- Integrated boundary mode operation for optimized efficiency across varying load conditions
- Low startup current consumption to minimize standby power losses
- Compatible with standard surface-mount assembly processes
Applications
- Power factor correction stages in AC-DC power supplies
- Boundary mode controlled converter designs
- General purpose power management integrated circuits
Procurement Notes
Verify the obsolete status and end-of-life designation before finalizing design-in decisions. Confirm availability through authorized distributors or secondary markets as standard production may be suspended. Ensure that any substitute components meet the original electrical specifications and pinout compatibility requirements for seamless integration into existing schematics.
Selection Notes
Select this component for applications requiring boundary mode PFC control with specific voltage and thermal constraints. Evaluate the 8-SOIC package dimensions against PCB layout restrictions. Consider the operating temperature range suitability for the intended environment. Verify input voltage compatibility with the system's power rail configuration.
Part Context
This part belongs to the FAN7529 family of power factor correction controllers. It is categorized under PMICs and specifically targets PFC applications. The manufacturer is onsemi. The product type is defined as a PFC controller supporting CRM and transition modes. It falls within the broader scope of power management integrated circuits.
Replacement Considerations
Publicly confirmed substitutes include L6561D and L6561D013TR from STMicroelectronics. These alternatives are documented as available replacements for the discontinued FAN7529M series.
