The U211B is an integrated circuit designed as a phase-control circuit in bipolar technology with an internal frequency-voltage converter. It also has an internal control amplifier, making it suitable for speed-regulated motor applications. It features integrated load limitation, tacho monitoring, soft-start functions, etc. to enable sophisticated motor control systems.
The U211B is an integrated circuit designed as a phase-control circuit in bipolar technology. It includes an internal frequency-voltage converter and an externally-controlled integrated amplifier, making it suitable for sophisticated motor control systems.
Key features include built-in overload limitation with a 'fold back' characteristic, optimized soft-start functions, and tacho monitoring for both shorted and open loop conditions. The device also offers automatic retriggering switchable options and internal supply-voltage monitoring.
| Current requirement | <= 3 mA |
|---|---|
| Triggering pulse typ. | 155 mA |
| Reference voltage source | -8.9 V |
| Control signal range | 0 V to -7 V |
| Voltage synchronization hysteresis | 300 mV |
It can be used for speed-regulated motor applications.
Yes, it has an integrated load limitation with a 'fold back' characteristic.
The charging current is typically 45 µA.