U211B
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 155m A
- Voltage and Current Synchronization
- Internal Supply-voltage Monitoring
- Temperature Reference Source
- Current Requirement ≤ 3m A
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.
Amongst others, the device features integrated load limitation, tacho monitoring and soft-start functions, to realize sophisticated motor control systems.
Figure 1-1. Block Diagram
Phase Control IC with Overload Limitation for Tacho Applications
Atmel U211B
17(16)
1(1)
Voltage/current...
