UC3875NG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

Name: UC3875NG4
Brand: Texas Instruments
SKU: UC3875NG4
Availability: InStock

UC3875NG4 is a phase shift resonant PWM controller IC from Texas Instruments, supporting current/voltage-mode control, 1 MHz operation, 20V supply range, and 500mA output drive. From $10.75 in stock, worldwide shipping.

OBSOLETEIntegrated CircuitVerified May 2026

Package / Visual Reference

UC3875NG4Dual-In-Line Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Dual-In-Line Packages
Pin Count: 20
Lifecycle: OBSOLETE
Datasheet: UC3875NG4 Datasheet PDF
Category: Integrated Circuit
Price: From $10.7520(MOQ 20)
Temp Range: ?°C to 70.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of UC3875NG4?

Phase shift resonant control technique for zero-voltage switching (ZVS) in high-efficiency power converters
Supports both current-mode and voltage-mode control for flexible PWM design
Wide input voltage range of 11V–20V with 12V nominal operation and up to 1 MHz switching frequency
500mA gate drive output at 2.6V enables direct MOSFET driving without external buffers
DIP-20 package for easy prototyping and through-hole assembly in industrial applications

What is UC3875NG4 used for?

The UC3875NG4 is widely used in high-frequency DC-DC converters and full-bridge resonant power supplies where zero-voltage switching is critical for efficiency. It is suited for telecom power systems, server power units, and industrial SMPS designs requiring precise phase-shift PWM control. Its flexible control modes also make it a strong choice for battery chargers and motor drive auxiliary power stages.

What are the specifications of UC3875NG4?

Pbfree Code	Yes
YTEOL	0
Additional Feature	CAN ALSO BE CONFIGURED IN CURRENT MODE; PWM CONTROL TECHNIQUE ALSO POSSIBLE
Analog IC - Other Type	SWITCHING CONTROLLER
Control Mode	CURRENT/VOLTAGE-MODE
Control Technique	RESONANT CONTROL
Input Voltage-Max	20V
Input Voltage-Min	11V
Input Voltage-Nom	12V
JESD-30 Code	R-PDIP-T20
JESD-609 Code	e4
Number of Functions	1
Output Current-Max	3A
Output Voltage-Max	5.08V
Output Voltage-Min	4.92V
Output Voltage-Nom	5V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	DIP20,.3
Package Shape	RECTANGULAR
Package Style	IN-LINE
Qualification Status	Not Qualified
Supply Current-Max (Isup)	30mA
Supply Voltage-Nom (Vsup)	12V
Surface Mount	NO
Switcher Configuration	PUSH-PULL
Switching Frequency-Max	1000kHz
Technology	BIPOLAR
Temperature Grade	COMMERCIAL
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	THROUGH-HOLE
Terminal Pitch	2.54mm
Terminal Position	DUAL
Package	Dual-In-Line Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8542.39.00.90
Country of Origin	Malaysia

Where can I find the UC3875NG4 datasheet?

UC3875NG4 Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for UC3875NG4?

Compatible alternatives and drop-in replacements for UC3875NG4:

UC3875NTexas Instruments

Switching Controller, Current/voltage-mode, 3A, 1000kHz Switching Freq-Max, BIPolar, PDIP20

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the input voltage range and switching frequency of the UC3875NG4?

The UC3875NG4 operates with an input voltage range of 11V to 20V (nominal 12V) and supports switching frequencies up to 1 MHz, making it suitable for compact, high-frequency resonant power supply designs.

What control modes does the UC3875NG4 support?

The UC3875NG4 supports both current-mode and voltage-mode control, as well as phase shift resonant control technique. It can also be configured for standard PWM control, giving designers significant flexibility in power converter topologies.

What package type is the UC3875NG4 and how does it help with prototyping?

The UC3875NG4 comes in a DIP-20 (Dual-In-Line, 20-pin) through-hole package, which is ideal for prototyping and breadboard-based development. This package type also simplifies manual soldering in low-volume or laboratory environments.

What are typical applications for the UC3875NG4?

Typical applications include full-bridge resonant DC-DC converters, telecom and server power supplies, industrial SMPS units, battery chargers, and motor drive auxiliary supplies where phase-shift PWM and zero-voltage switching improve conversion efficiency.

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About Texas Instruments

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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AvailabilityIn Stock

Reference Price (USD)

From $10.7520

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
20+	$12.8900	$257.80
40+	$10.7520	$430.08

pcs

Unit price: $12.8900 · Total: $257.80

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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UC3875NG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock

What are the key features of UC3875NG4?

What is UC3875NG4 used for?

What are the specifications of UC3875NG4?

Compliance & Regulatory

Where can I find the UC3875NG4 datasheet?

What are equivalent replacements for UC3875NG4?

Frequently Asked Questions

What is the input voltage range and switching frequency of the UC3875NG4?

What control modes does the UC3875NG4 support?

What package type is the UC3875NG4 and how does it help with prototyping?

What are typical applications for the UC3875NG4?

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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