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Product Detailed Parameters
- Description：FLUORESCENT LIGHT CONTROLLER
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Tube
- Type：Ballast Controller
- Frequency：48.2kHz ~ 57.8kHz
- Voltage - Supply：12.7V ~ 30V
- Current - Supply：6.5 mA
- Current - Output Source/Sink：-
- Dimming：No
- Operating Temperature：-25°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The FAN7544M is a ballast controller IC manufactured by Fairchild Semiconductor, designed for electronic lighting applications. It operates within a supply voltage range of 12.7V to 30V and draws a typical supply current of 6.5 mA. The device functions at a frequency range of 48.2kHz to 57.8kHz. It is housed in an 8-DIP or SOIC package and supports through-hole installation. The component is classified as obsolete with no active manufacturing status.
Feature Summary
- Integrated control logic for electronic ballast systems
- Wide operating supply voltage compatibility
- Fixed frequency operation for tube lighting applications
Applications
- Electronic ballast controllers for fluorescent tubes
- Lighting power supply circuits
- General purpose AC-DC conversion stages
Procurement Notes
Verify part authenticity carefully as the FAN7544M is officially obsolete. Check datasheet revisions and manufacturer history since Fairchild Semiconductor operations have transitioned to onsemi. Confirm package type (DIP vs SOIC) matches design requirements. Ensure substitute components like the FAN7711N are evaluated for pin compatibility and electrical equivalence before integration into existing designs.
Selection Notes
Select this component only for legacy system maintenance or specific historical design replication. Evaluate modern alternatives due to discontinued status. Consider thermal management requirements associated with the 8-pin package. Verify that the fixed frequency range aligns with electromagnetic interference standards for the target application environment.
Part Context
This component belongs to the FAN7544 family of lighting controllers. It was originally produced by Fairchild Semiconductor before corporate restructuring. Related variants include the FAN7544N and FAN7544MX. The series focuses on simple, cost-effective solutions for standard fluorescent lamp ballasts without advanced dimming capabilities.
Replacement Considerations
The FAN7711N is listed as a similar replacement option. Verify functional equivalence regarding frequency stability and drive capability. Assess mechanical footprint differences if switching between DIP and SOIC packages. Review updated datasheets for any changes in recommended operating conditions.
