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Product Detailed Parameters
- Description：IC PFC CTR AV CURR 100KHZ 20DIP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Mode：Average Current
- Frequency - Switching：100kHz
- Voltage - Supply：9.7V ~ 18V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Through Hole
- Package / Case：20-DIP (0.300", 7.62mm)
- Supplier Device Package：20-PDIP
- Current - Startup：150 µA
- Grade：-
- Qualification：-
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Overview
The UCC28502N is a Power Factor Correction (PFC) controller manufactured by Texas Instruments, designed for average current mode control. It operates within a supply voltage range of 9.7V to 18V and supports a switching frequency of 100kHz. The device features a low start-up current of 150 µA and functions reliably across an industrial temperature range of -40°C to +85°C. Housed in a 20-pin PDIP package with a width of 0.300 inches (7.62mm), it utilizes through-hole mounting. This component is part of the UCC28500-03 series and is currently classified as obsolete.
Feature Summary
- Implements average current mode control architecture for PFC applications
- Integrates high-voltage startup circuitry with low quiescent current consumption
- Provides robust thermal performance suitable for extended industrial operating temperatures
Applications
- Power factor correction pre-regulators
- Universal input power supplies
- Industrial power conversion systems
Procurement Notes
Verify component authenticity due to obsolete status. Confirm package integrity and pin alignment against the 20-PDIP specification. Check datasheet revisions for any design-in warnings. Ensure compatibility with existing PCB footprints before integration.
Selection Notes
Evaluate suitability for designs requiring 100kHz operation and average current mode control. Consider the 20-pin DIP footprint constraints for through-hole assembly processes. Assess if the 9.7V to 18V supply range aligns with system power requirements.
Part Context
The UCC28502N belongs to the UCC28500 family of PFC controllers from Texas Instruments. It shares functional similarities with other members like the UCC28503 but differs in switching frequency and package options. This specific variant is distinguished by its 100kHz frequency and PDIP packaging.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official obsolescence notices or contact Texas Instruments directly for recommended alternatives.
