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KA7553A: PWM Controller programmable frequency upto 600khz

Datasheet: SMPS Controller
Rev. 2 (341kB)
Product Overview
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The KA7552A/KA7553A are switching power control IC for wide operating frequency range. The internal circuits include pulse by pulse current limiting, protection, on/off control by external trigger, low standby current, soft start, and high current totempole output for driving a POWER MOSFET. Maximum duty of the KA7552A is 70% and the KA7553A is 46%. When duty is maximum, the input threshold voltage of pin2 & pin8 are not same in KA7552A and KA7553A.
Features
 
  • Built-in Drive Circuits for Direct Connection POWER MOSFET (lO = ±1.5A)
  • Wide Operating Frequency Range (5KHz - 600KHz)
  • Pulse By Pulse Over Current Limiting
  • Over Load Protection
  • On/Off Control By External Trigger
  • Internal UVLO
  • Low Standby Current (Typ. 90uA)
  • Soft Start Circuit
Applications
  • Other Consumer Electronics
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
KA7553A Active
Pb-free
KA7553A PDIP-8 626-05 NA Tube 3000 $0.4
Market Leadtime (weeks) : 13 to 16
Case Outlines
626-05   
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