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See Technical Specifications

UC1854BJ +BOM

The UC1854BJ is a Power Factor Correction Preregulator designed to operate at 115kHz with a low current draw of 0.3mA, housed in a 16-Pin CDIP Tube

Manufacturer:

Texas Instruments
Mfr.Part #:

UC1854BJ
Datasheet:

UC1854BJ 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 UC1854BJ

Email: [email protected]

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Tel: +852 95804164

UC1854BJ General Description

Available in various package options, including N, DW, J, and Q, the UC3854A/B is a versatile and adaptable solution for active power factor correction. Its advanced features such as the VREF GOOD comparator, UVLO threshold options, and enhanced multiply/divide circuit make it a reliable choice for a wide range of applications. The product's improved amplifier output clamps, current sinking capability, and low offset VAC pin contribute to reducing external component count while enhancing overall performance. With foldback power limiting during brownout and extreme low line conditions, the UC3854A/B offers a comprehensive and efficient solution for power factor correction challenges

Key Features

The UC18A54BJ has a maximum input voltage of 40V and a maximum output current of 3.3A
It has an operating frequency range of 100 kHz to 500 kHz
This product features a low noise and high ripple rejection ratio
It is ideal for DC-DC converter applications in industrial control systems
The output voltage can be adjusted between 2.5V to 4.5V
This product meets UL, CE, and ENEC safety certifications

Application

High efficiency for telecom applications
Precise voltage control for power supplies
Reliable performance in industrial systems

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
Rating	Military	Operating temperature range (°C)	-55 to 125
Duty cycle (max) (%)	95