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UCC3750 - Source Ringer Controller

Download the UCC3750 datasheet PDF. This datasheet also covers the UCC2750 variant, as both devices belong to the same source ringer controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The UCC3750 Source Ringer Controller provides a complete control and drive solution for a four quadrant flyback-based ring generator circuit.

The IC controls a primary side switch, which is modulated when power transfer is taking place from input to output.

Key Features

  • Provides Control for Flyback Based Four Quadrant Amplifier Topology.
  • Onboard Sine Wave Reference with Low THD.
  • Selectable Ringing Frequency for Different Phone Systems (20Hz, 25Hz and 50Hz).
  • Programmable Output Amplitude and DC Offset.
  • DC Current Limiting for Short Circuit Protection.
  • Secondary Side Voltage Mode Control.
  • Operates from a Single 5V Supply.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UCC2750-Unitrode.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UCC3750
Manufacturer Unitrode
File Size 1.35 MB
Description Source Ringer Controller
Datasheet download datasheet UCC3750 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.

View original datasheet text
Source Ringer Controller application INFO available UCC2750 UCC3750 FEATURES • Provides Control for Flyback Based Four Quadrant Amplifier Topology • Onboard Sine Wave Reference with Low THD • Selectable Ringing Frequency for Different Phone Systems (20Hz, 25Hz and 50Hz) • Programmable Output Amplitude and DC Offset • DC Current Limiting for Short Circuit Protection • Secondary Side Voltage Mode Control • Operates from a Single 5V Supply TYPICAL APPLICATION DESCRIPTION The UCC3750 Source Ringer Controller provides a complete control and drive solution for a four quadrant flyback-based ring generator circuit. The IC controls a primary side switch, which is modulated when power transfer is taking place from input to output.