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Product Detailed Parameters
- Description：IC PFC CTR AVERAGE 120KHZ 20SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Bulk,Tube
- Mode：Average Current
- Frequency - Switching：80kHz ~ 120kHz
- Voltage - Supply：9.7V ~ 18V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Current - Startup：150 µA
- Grade：-
- Qualification：-
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Overview
The UCC28501DW is a BiCMOS PFC/PWM combination controller from Texas Instruments, designed for active power-factor-corrected preregulators and second-stage DC-to-DC converters. It operates within a switching frequency range of 80kHz to 120kHz and supports a supply voltage of 9.7V to 18V. The device features 10.5V/10V VCC UVLO and 6.75V/5.5V PWM UVLO thresholds. It is housed in a 20-pin SOIC (DW) package with an operating temperature range of -40°C to 85°C.
Feature Summary
- Integrates control functions for both active power factor correction and secondary DC-to-DC conversion stages.
Applications
- Active power-factor-corrected preregulators
- Second-stage DC-to-DC converters
Procurement Notes
Verify the specific suffix 'DW' confirms the standard SOIC-20 package and commercial temperature grade (-40°C to 85°C). Ensure compatibility with average current mode control requirements. Cross-reference part numbers like UCC28501DWTR or UCC28501DWG4 if tape-and-reel or lead-free variants are required, noting that suffixes may alter packaging but not core functionality.
Selection Notes
Select this component when designing systems requiring integrated PFC and PWM control in a single IC. It is suitable for applications needing average current mode control with a switching frequency up to 120kHz. Consider the 20-pin SOIC package constraints and the specified UVLO thresholds for system startup and protection logic.
Part Context
This part belongs to the UCC2850x family of BiCMOS controllers. The family provides comprehensive control functions for combined PFC and DC-to-DC topologies. The UCC28501DW specifically targets designs requiring high power factor correction alongside efficient secondary regulation.
Replacement Considerations
Check for UCC28501DWTR for reel packaging or UCC28501DWG4 for lead-free specifications. These are pin-compatible variants within the same functional family.
FAQ
What is the switching frequency range of the UCC28501DW?
The device operates within a switching frequency range of 80kHz to 120kHz.
Does the UCC28501DW support both PFC and PWM control?
Yes, it is a combination controller providing all necessary control functions for active power-factor-corrected preregulators and second-stage DC-to-DC converters.
