UCC2961DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: UCC2961DG4
Brand: Texas Instruments
SKU: UCC2961DG4
Availability: InStock

The UCC2961DG4 is a voltage-mode PWM secondary-side controller from Texas Instruments designed for isolated power supply feedback and regulation loops. It operates from an 8.5 V to 12 V supply and is housed in a 14-pin SOIC package for compact switching power supply designs.

OBSOLETEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

UCC2961DG4Small Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 14
Lifecycle: OBSOLETE
Datasheet: UCC2961DG4 Datasheet PDF
Category: Integrated Circuit
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of UCC2961DG4?

Voltage-mode PWM secondary-side control for isolated SMPS feedback
Input voltage range of 8.5 V to 12 V for flexible supply rail compatibility
Pulse width modulation control technique enabling precise output regulation
14-pin SOIC package for standard SMT power supply board assembly
RoHS-compliant e4 JESD-609 lead-free construction
Single-function switching controller optimized for secondary-side regulation

What is UCC2961DG4 used for?

The UCC2961DG4 is deployed in the secondary-side regulation loop of isolated flyback and forward converters used in telecom power supplies, industrial SMPS, and server power modules. Its voltage-mode PWM control enables stable closed-loop output regulation when combined with an optocoupler or pulse transformer to close the feedback path across the isolation barrier.

What are the specifications of UCC2961DG4?

Pbfree Code	Yes
YTEOL	0
Analog IC - Other Type	SWITCHING CONTROLLER
Control Mode	VOLTAGE-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	12V
Input Voltage-Min	8.5V
Input Voltage-Nom	12V
JESD-30 Code	R-PDSO-G14
JESD-609 Code	e4
Number of Functions	1
Output Current-Max	2A
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOP14,.25
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Current-Max (Isup)	2.8mA
Surface Mount	YES
Switcher Configuration	SINGLE
Switching Frequency-Max	400kHz
Technology	BICMOS
Temperature Grade	INDUSTRIAL
Terminal Finish	NICKEL PALLADIUM GOLD
Terminal Form	GULL WING
Terminal Pitch	1.27mm
Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 2
ECCN	EAR99
HTS Code	8542.39.00.60

Where can I find the UCC2961DG4 datasheet?

UCC2961DG4 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for UCC2961DG4?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What input voltage range does UCC2961DG4 require, and how does that constrain secondary-side power rail design?

UCC2961DG4 requires an input supply between 8.5 V and 12 V with a nominal operating point of 12 V, so the secondary-side auxiliary rail or bias winding in the flyback transformer must be designed to maintain output within this window across all load and line conditions.

When should an engineer choose UCC2961DG4 over a primary-side regulation approach for an isolated SMPS?

Secondary-side voltage-mode control with UCC2961DG4 is preferred when tight DC output regulation below 1% is needed, since direct output sensing at the secondary eliminates the gain error introduced by an optocoupler in primary-side regulation, particularly in 12 V industrial and telecom converter designs.

What lifecycle and sourcing risk applies to UCC2961DG4, and how should design engineers plan for it?

With a YTEOL of 0, UCC2961DG4 is at end-of-life status, meaning Texas Instruments may have ceased production. Engineers should evaluate last-time-buy options in 14-pin SOIC footprint and identify functional pin-compatible PWM secondary-side controller replacements to maintain uninterrupted power supply production.

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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

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UCC2961DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of UCC2961DG4?

What is UCC2961DG4 used for?

What are the specifications of UCC2961DG4?

Compliance & Regulatory

Where can I find the UCC2961DG4 datasheet?

What are equivalent replacements for UCC2961DG4?

Frequently Asked Questions

What input voltage range does UCC2961DG4 require, and how does that constrain secondary-side power rail design?

When should an engineer choose UCC2961DG4 over a primary-side regulation approach for an isolated SMPS?

What lifecycle and sourcing risk applies to UCC2961DG4, and how should design engineers plan for it?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Texas Instruments

More from Texas Instruments

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