Key facts
- Brand
- Atmel
- Model
- U211B
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-08
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Philips U211B Phase-Control IC Datasheet
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.
Atmel U211B specifications
| 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 |
All Atmel U211B documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the primary application of the U211B?
It can be used for speed-regulated motor applications.
Does the U211B include overload protection?
Yes, it has an integrated load limitation with a 'fold back' characteristic.
What is the typical triggering pulse current?
The typical triggering pulse current is 155 mA.
From: Atmel U211B Datasheet
What is the reference voltage on pin 16?
The reference voltage on pin 16 is typically –8.9 V.
From: Atmel U211B Datasheet