This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only,

See Technical Specifications

UC3842AN

UC3842AN is a DIP-8 package AC-DC controller and regulator that operates at 500 kilohertz and accepts input voltages between 10 and 30 volts

Manufacturer:

Texas Instruments
Mfr.Part #:

UC3842AN
Datasheet:

UC3842AN Datasheet (PDF)
Topology:

Boost, Buck, Buck boost, Flyback, Forward
Control mode:

Peak current mode
Duty cycle (max) (%):

100
Switching frequency (max) (kHz):

500
EDA/CAD Models:

Request Free CAD Models for UC3842AN

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

UC3842AN General Description

UC3842AN is a pulse width modulation (PWM) controller IC designed for use in power supply applications. It offers high efficiency, low standby power consumption, and fast transient response. The IC operates at a fixed frequency of 65 kHz and can be synchronized to an external clock signal. UC3842AN features a voltage reference, error amplifier, oscillator, pulse width modulator, and output control circuitry. It provides overvoltage protection, adjustable dead time, and a soft-start function. The IC is capable of driving both power MOSFETs and bipolar power transistors. UC3842AN is housed in an 8-pin dual in-line package and operates over a wide voltage range of 8V to 35V. The maximum duty cycle is 50%, and the operating temperature range is -40°C to 85°C.

Key Features

The UC3842AN is a versatile pulse-width modulation controller with features including adjustable frequency, soft-start capability, and internal oscillator

It also has a voltage reference, error amplifier, current-mode PWM circuitry, and protection features such as under-voltage lockout and overcurrent protection

Application

The UC3842AN is commonly used in switch-mode power supplies, LED drivers, battery chargers, and other applications requiring a regulated power supply

It is also used in DC-DC converters, voltage regulators, and motor control circuits for high-efficiency power management solutions

Specifications

Topology	Boost, Buck, Buck boost, Flyback, Forward	Control mode	Peak current mode
Duty cycle (max) (%)	100	Switching frequency (max) (kHz)	500
Features	Adjustable switching frequency, Current limiting, Dead time control, Error amplifier	UVLO thresholds on/off (V)	16/10
Operating temperature range (°C)	0 to 70	Rating	Catalog
Gate drive (typ) (A)	1	Vin (max) (V)	28