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Product Detailed Parameters
- Description：POWER FACTOR CONTROLLER, VOLTAGE
- Series：*
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Mode：-
- Frequency - Switching：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Current - Startup：-
- Grade：-
- Qualification：-
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Overview
The FAN7528BMX is a dual-output critical conduction mode (CRM) power factor correction controller manufactured by Fairchild Semiconductor. It utilizes voltage mode PWM to generate MOSFET turn-off signals without requiring rectified AC line voltage information, thereby reducing input sensing power loss. The device features an 8-pin SOP package and includes integrated protections such as output over-voltage protection, open-feedback disable, zero current detection, and MOSFET over-current protection.
Feature Summary
- Dual-output voltage control for simultaneous regulation
- Voltage mode CRM operation eliminates need for AC line sensing network
- Integrated comprehensive protection suite including OVP and feedback open detection
Applications
- Adapter power supplies
- Switching mode power supplies
- Boost PFC applications
Procurement Notes
Verify the manufacturer origin, as Rochester Electronics may distribute this part. Confirm the specific suffix 'BMX' corresponds to the SOP-8 tape and reel packaging format. Ensure the component meets RoHS compliance requirements if specified for your application. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.
Selection Notes
Select this controller for designs requiring dual isolated outputs with high efficiency. The voltage mode architecture simplifies the bill of materials by removing the AC sensing resistor network. Ideal for applications where low standby power and reduced component count are prioritized over the complexity of current-mode control schemes.
Part Context
This component belongs to the FAN752x series of CRM PFC controllers from Fairchild Semiconductor. It shares architectural similarities with the FAN7529 and FAN7530 but is distinct in its dual-output capability. The series targets strict energy efficiency standards for consumer electronics and lighting ballasts.
Replacement Considerations
The FAN7528M and FAN7528MX are direct equivalents within the same family. Verify that substitute parts maintain the dual-output control functionality and identical pinout configuration.
