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PBL3717-2 - Stepper Motor Drive Circuit

General Description

PBL 3717/2 is a bipolar monolithic circuit intended to control and drive the current in one winding of a stepper motor.

The circuit consists of a LS-TTL compatible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage with built-in protection diodes.

Key Features

  • Half-step and full-step modes.
  • Switched mode bipolar constant current drive.
  • Wide range of current control 5 - 1200 mA.
  • Wide voltage range 10 - 50 V.
  • Designed for unstabilized motor supply voltage.
  • Current levels can be selected in steps or varied continuously.
  • Thermal overload protection. VCC Schmitt Trigger Phase I1 I0 VR & & & & ≥1 Time Delay VMM VMM PB L3 16-pin plastic batwing DIP 1 1 1 MA MB ≥1 28-pin plastic PLC.

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Datasheet Details

Part number PBL3717-2
Manufacturer Ericsson
File Size 214.05 KB
Description Stepper Motor Drive Circuit
Datasheet download datasheet PBL3717-2 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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April 1997 PBL 3717/2 PBL 3717/2 Stepper Motor Drive Circuit Description PBL 3717/2 is a bipolar monolithic circuit intended to control and drive the current in one winding of a stepper motor. The circuit consists of a LS-TTL compatible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage with built-in protection diodes. Two PBL 3717/2 and a small number of external components form a complete control and drive unit for LS-TTL or microprocessor-controlled stepper motor systems. Key Features • Half-step and full-step modes. • Switched mode bipolar constant current drive. • Wide range of current control 5 - 1200 mA. • Wide voltage range 10 - 50 V. • Designed for unstabilized motor supply voltage.