KA3842A

Datasheet Buy Sample

SMPS Controller

General Description

The KA3842AC/KA3842AE are fixed PWM controller for Off Line and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, 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 typ. 100ns. The KA3842AC/KA3842AE has UVLO threshold of 16V(on) and 10V(off). The KA3842AC/KA3842AE can operate within 100% duty cycle.

Product Status/Pricing/Packing

Product Product Status Eco Status *Pricing Package Type Leads Packing Method Package Drawing **Package Marking Convention RoHS IPC1752 RoHS/REACH/JIG Certificate of Compliance
KA3842ACS Full Production ROHS Compliant $0.34 DIP 8 RAIL PDF Line 1:UNK
PDF opens in a new window
XML opens in a new window
PDF opens in a new window

Features

  • Low Start Current 0.2mA (Typ)
  • Operating Range up to 500kHz
  • Cycle by Cycle Current Limiting
  • Under Voltage Lock Out With Hysteresis
  • Short Shutdown Delay Time: Typ.100ns
  • High Current Totem-Pole Output
  • Output Swing Limiting: 22V

Applications

  • TBA

Application Notes

Multilanguage - Chinese Multilanguage - English Multilanguage - Japanese Multilanguage - Korean