U211B-M

U211B-M Datasheet


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.

Part Datasheet
U211B-M U211B-M U211B-M (pdf)
Related Parts Information
U211B-MFP U211B-MFP U211B-MFP
U211B-MFPG3 U211B-MFPG3 U211B-MFPG3
PDF Datasheet Preview
• 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

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.

Figure Block Diagram
17 16

Voltage/current detector
11 10 9

Control + amplifier
14 13 15 14

Load limitation speed/time controlled
5* Automatic retriggering

Phasecontrol unit j = f V12

Output
pulse

Supply voltage limitation

Reference voltage

Voltage monitoring
3 -VS
2 GND
16 15

Phase Control IC with Overload Limitation for Tacho Applications

U211B

Controlled current sink

Soft start -VRef

Frequency- Pulse-blocking
to-voltage converter
tacho
monitoring
12 11
13 12 9 8 7

Pin numbers in brackets refer to SO16 * Pins 5 and 18 connected internally

Pin Configuration

Figure Pinning DIP18

Isync 1 GND 2

VS 3 Output 4

Retr 5 VRP 6 CP 7 F/V 8 CRV 9

U211B
18 PB/TM 17 Vsync 16 VRef 15 OVL 14 Isense 13 Csoft 12 CTR/OPO 11 OP+ 10 OP-

Pin Description

Isync

Output

Retr
Ordering Information

Extended Type Number U211B-x U211B-xFP U211B-xFPG3

Package DIP18 SO16

Package Information

Package DIP18

Dimensions in mm

Remarks Tube Taped and reeled

U211B

Package SO16

Dimensions in mm
technical drawings according to DIN specifications
technical drawings according to DIN specifications

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Printed on recycled paper.
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Datasheet ID: U211B-M 519460