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U211B - Phase Controller

General Description

The integrated circuit Atmel® U211B is designed as a phase-control circuit in bipolar technology with an internal frequency-to-voltage converter.

The device includes an internal control amplifier which means it can be used for speed-regulated motor applications.

Key Features

  • Internal Frequency-to-voltage Converter.
  • Externally Controlled Integrated Amplifier.
  • Overload Limitation with “Fold Back” Characteristic.
  • Optimized Soft-start Function.
  • Tacho Monitoring for Shorted and Open Loop.
  • Automatic Retriggering Switchable.
  • Triggering Pulse Typically 155mA.
  • Voltage and Current Synchronization.
  • Internal Supply-voltage Monitoring.
  • Temperature Reference Source.
  • Current Require.

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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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Features • Internal Frequency-to-voltage Converter • Externally Controlled Integrated Amplifier • Overload Limitation with “Fold Back” Characteristic • Optimized Soft-start Function • Tacho Monitoring for Shorted and Open Loop • Automatic Retriggering Switchable • Triggering Pulse Typically 155mA • Voltage and Current Synchronization • Internal Supply-voltage Monitoring • Temperature Reference Source • Current Requirement ≤ 3mA 1. Description The integrated circuit Atmel® U211B is designed as a phase-control circuit in bipolar technology with an internal frequency-to-voltage converter. The device includes an internal control amplifier which means it can be used for speed-regulated motor applications.