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Texas Instruments UC2864DW/81167 — Analog & Data Acquisition

UC2864DW/81167 Resonant Mode PWM Controller, Active, Bulk

MPNUC2864DW/81167
End of Life

Texas Instruments UC2864DW/81167, resonant mode PWM power supply controller, Active lifecycle, Bulk package.

$3.2Ref. price · indicative, final on quote
Texas Instruments UC2864DW/81167 datasheet (PDF)
RoHSNot applicable
Series*
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

UC2864DW/81167 specifications
ParameterValue
Series*
PackageBulk

Product details

Resonant-mode PWM controller for power supplies

The Texas Instruments UC2864DW/81167 is a resonant-mode power supply controller designed for zero-voltage-switching (ZVS) and zero-current-switching (ZCS) topologies in medium-to-high-power converters. Its primary application is in off-line and DC-DC resonant converters where soft-switching reduces switching losses and EMI.

For MRO planners stocking spares, this part does not present an imminent obsolescence risk — though given the age of the resonant-mode controller family, keeping a small buffer is prudent if the design is long-lived.

Frequently asked questions

What is UC2864DW/81167 used for?

It is a resonant-mode PWM power supply controller used in zero-voltage-switching (ZVS) and zero-current-switching (ZCS) DC-DC converters and off-line power supplies, typically in medium-to-high-power applications where soft-switching reduces losses and EMI.

What is the replacement or equivalent for UC2864DW/81167?

There is no official direct replacement listed. The UCC2806DWTR is a functionally similar current-mode PWM controller but differs in topology (hard-switching vs resonant mode) and lacks clock sync. Verify compatibility with your specific resonant converter design before substituting.