Description
●The integrated circuit 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.
●Amongst others, the device features integrated load limitation, tacho monitoring and soft-start functions, to realize sophisticated motor control systems.
●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 155 mA
●• Voltage and Current Synchronization
●• Internal Supply-voltage Monitoring
●• Temperature Reference Source
●• Current Requirement ≤ 3 mA
