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UCC1809-1 - Economy Primary Side Controller

General Description

The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count.

Key Features

  • User Programmable Soft Start With Active Low Shutdown.
  • User Programmable Maximum Duty Cycle.
  • Accessible 5V Reference.
  • Undervoltage Lockout.
  • Operation to 1MHz.
  • 0.4A Source/0.8A Sink FET Driver.
  • Low 100µA Startup Current PART TURN ON TURN OFF NUMBER.

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Datasheet Details

Part number UCC1809-1
Manufacturer Unitrode
File Size 909.17 KB
Description Economy Primary Side Controller
Datasheet download datasheet UCC1809-1 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Economy Primary Side Controller application INFO available UCC1809-1/-2 UCC2809-1/-2 UCC3809-1/-2 FEATURES • User Programmable Soft Start With Active Low Shutdown • User Programmable Maximum Duty Cycle • Accessible 5V Reference • Undervoltage Lockout • Operation to 1MHz • 0.4A Source/0.8A Sink FET Driver • Low 100µA Startup Current PART TURN ON TURN OFF NUMBER THRESHOLD THRESHOLD UCCX809-1 10V 8V UCCX809-2 15V 8V DESCRIPTION The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count.