Datasheet4U Logo Datasheet4U.com

KA3842AE Datasheet SMPS Controller

Manufacturer: Fairchild (now onsemi)

Download the KA3842AE datasheet PDF. This datasheet also includes the KA3842AC variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (KA3842AC_FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.

General Description

The KA3842AC/KA3842AE are fixed PWM controllers for Off Line and DC to DC converter applications.

The internal circuits include UVLO, low start up current, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem pole output for driving a POWER MOSFET.

Also KA3842AC/KA3842AE provides low start up current below 0.3mA and short shutdown delay time, typically 100ns.

Overview

KA3842AC/KA3842AE SMPS Controller March 2006 KA3842AC/KA3842AE SMPS.

Key Features

  • Low start current 0.2mA (Typ. ).
  • Operating range up to 500kHz.
  • Cycle by cycle current limiting.
  • Under Voltage Lock Out (UVLO) with hysteresis.
  • Short shutdown delay time: Typ.100ns.
  • High current totem-pole output.
  • Output swing limiting: 22V.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
Wing Shing Computer Components Logo KA3842A PWM CONTROLLER Wing Shing Computer Components
Wing Shing Computer Components Logo KA3842AM PWM CONTROLLER Wing Shing Computer Components
ETC KA3842 CurrentMode PWM Controller ETC
Fairchild Logo KA3842B SMPS Controller Fairchild

More Datasheets from Fairchild (now onsemi)

Part Number Description
KA3842AC SMPS Controller
KA3843AC SMPS Controller
KA3010D 15V 1.7W 4-channel motor driver
KA3032 5-Channel Motor Drive IC
KA3120 SPINDLE & VOICE COIL MOTOR ONE CHIP DRIVER
KA3162 Single IGBT Gate Driver
KA336-2.5 Programmable Shunt Regulator
KA336-2.5B Programmable Shunt Regulator
KA3511 Intelligent Voltage Mode PWM IC
KA3511D Intelligent Voltage Mode PWM IC