UCC3818APWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

Name: UCC3818APWR
Brand: Texas Instruments
SKU: UCC3818APWR
Availability: InStock

UCC3818APWR is a 220 kHz average current-mode power factor correction (PFC) controller IC in a 16-pin TSSOP package from Texas Instruments. It operates from 10.3 V to 18 V supply, uses pulse-width modulation, and is suited for AC-DC front-end designs. Available in stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

UCC3818APWRSmall Outline Packages

Quick Facts

Manufacturer: Texas Instruments
Package: Small Outline Packages
Pin Count: 16
Lifecycle: ACTIVE
Datasheet: UCC3818APWR Datasheet PDF
Category: Integrated Circuit
Price: From $3.0300(MOQ 2000)
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 UCC3818APWR?

Average current-mode control achieves high power factor correction up to near-unity PF in AC-DC converters
220 kHz switching frequency enables compact magnetics and reduced filter component size
16-pin TSSOP (R-PDSO-G16) package simplifies layout in space-constrained AC-DC power supply designs

What is UCC3818APWR used for?

The UCC3818APWR is used in AC-DC power supplies requiring active power factor correction, including industrial SMPS, LED drivers, and server front-end converters. Its 10.3 V to 18 V supply range and average current-mode PWM topology comply with IEC 61000-3-2 harmonic standards. It supports designs targeting efficiency improvements and compliance in equipment rated above 75 W.

What are the specifications of UCC3818APWR?

Pbfree Code	Yes
YTEOL	15
Analog IC - Other Type	POWER FACTOR CONTROLLER
Control Mode	CURRENT-MODE
Control Technique	PULSE WIDTH MODULATION
Input Voltage-Max	18V
Input Voltage-Min	10.3V
Input Voltage-Nom	12V
JESD-30 Code	R-PDSO-G16
JESD-609 Code	e4
Number of Functions	1
Output Current-Max	1.2A
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	TSSOP16,.25
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Supply Current-Max (Isup)	4mA
Supply Voltage-Max (Vsup)	18V
Supply Voltage-Nom (Vsup)	12V
Surface Mount	YES
Switcher Configuration	BOOST
Switching Frequency-Max	250kHz
Technology	BICMOS
Temperature Grade	COMMERCIAL
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form	GULL WING
Terminal Pitch	0.65mm
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	8542.39.00.90

Where can I find the UCC3818APWR datasheet?

UCC3818APWR Datasheet Download

Official datasheet from Texas Instruments

What are equivalent replacements for UCC3818APWR?

Compatible alternatives and drop-in replacements for UCC3818APWR:

UCC3818APWG4Texas Instruments

Power Factor Controller, Current-mode, 1.2A, 120kHz Switching Freq-Max, BICMOS, PDSO16

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

At what switching frequency does the UCC3818APWR operate and why does this matter for PFC designs?

The UCC3818APWR operates at 220 kHz, enabling smaller boost inductors and filter capacitors in PFC stages. Higher switching frequency reduces the size of passive components required for achieving power factors above 0.99 in AC-DC supplies rated from 75 W to several kilowatts.

Which supply voltage range is required to power the UCC3818APWR control circuitry?

The UCC3818APWR requires a supply voltage between 10.3 V and 18 V, with 12 V as the nominal operating point. This typical VCC range is derived from an auxiliary winding or bias supply in AC-DC converter designs, ensuring stable bias for the PWM and error amplifier circuits.

How does the UCC3818APWR compare to non-PFC PWM controllers for AC-DC front-end design?

Unlike basic PWM controllers, the UCC3818APWR integrates average current-mode PFC control that shapes the input current to follow the AC line voltage, reducing total harmonic distortion below 5% and achieving power factors above 0.95. This eliminates the need for separate PFC pre-regulator ICs in offline supplies above 75 W.

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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 $3.0300

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Qty.	Unit Price	Ext. Price
2000+	$3.0300	$6060.00

pcs

Unit price: $3.0300 · Total: $6060.00

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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UCC3818APWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock

What are the key features of UCC3818APWR?

What is UCC3818APWR used for?

What are the specifications of UCC3818APWR?

Compliance & Regulatory

Where can I find the UCC3818APWR datasheet?

What are equivalent replacements for UCC3818APWR?

Frequently Asked Questions

At what switching frequency does the UCC3818APWR operate and why does this matter for PFC designs?

Which supply voltage range is required to power the UCC3818APWR control circuitry?

How does the UCC3818APWR compare to non-PFC PWM controllers for AC-DC front-end design?

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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