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See Technical Specifications

UC3854BN +BOM

Texas Instruments UC3854BN PFC Controller IC

Manufacturer:

Texas Instruments
Mfr.Part #:

UC3854BN
Datasheet:

UC3854BN Datasheet (PDF)
Topology:

Boost
Control mode:

CCM
Switching frequency (max) (kHz):

200
UVLO thresholds on/off (V):

10.5/10
EDA/CAD Models:

Request Free CAD Models for UC3854BN

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UC3854BN General Description

The UC3854BN is a PWM controller IC (integrated circuit) designed for power supply applications. It is manufactured by Texas Instruments and is commonly used in AC-DC power supplies, DC-DC converters, and other power management systems.The UC3854BN features a voltage mode PWM (pulse width modulation) control with adjustable frequency and duty cycle. It operates with a wide input voltage range and has built-in protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.This IC is capable of driving MOSFETs or bipolar transistors to regulate the output voltage of the power supply. It utilizes a voltage feedback loop to maintain stable output voltage regulation under varying load conditions.The UC3854BN is available in a 16-pin PDIP (Plastic Dual In-Line Package) package and operates over a wide temperature range. It is a reliable and cost-effective solution for designing efficient and high-performance power supplies in various applications

Key Features

High-performance power factor correction controller

Wide operating input voltage range

Adjustable output voltage and output current limit

Overvoltage and overcurrent protection

Fault protection features

Low power standby mode

Internal 2A FET driver

Advanced current mode PWM controller

Application

The UC3854BN is commonly used in power factor correction circuits, boost converters, and LED drivers

It is also suitable for offline power supplies, industrial applications, and high-power applications that require high efficiency and reliability

Specifications

Topology	Boost	Control mode	CCM
Switching frequency (max) (kHz)	200	UVLO thresholds on/off (V)	10.5/10
Vin (max) (V)	20	Features	> 750 W applications, Average current mode, Continuous Control Mode, Enable, Undervoltage protection
Rating	Catalog	Operating temperature range (°C)	0 to 70
Duty cycle (max) (%)	95