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UCC2809-2 - Economy Primary Side Controller

Download the UCC2809-2 datasheet PDF. This datasheet also covers the UCC1809-1 variant, as both devices belong to the same economy primary side controller family and are provided as variant models within a single manufacturer datasheet.

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.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UCC1809-1-Unitrode.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UCC2809-2
Manufacturer Unitrode
File Size 909.17 KB
Description Economy Primary Side Controller
Datasheet download datasheet UCC2809-2 Datasheet

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Other Datasheets by Unitrode

Part Number Description
UCC2809-1 Economy Primary Side Controller
UCC2807-1 Programmable Maximum Duty Cycle PWM Controller
UCC2807-2 Programmable Maximum Duty Cycle PWM Controller
UCC2807-3 Programmable Maximum Duty Cycle PWM Controller
UCC2808-1 Low Power Current Mode Push-Pull PWM

Full PDF Text Transcription

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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.
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