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PBL3774-1 - Dual Stepper Motor Driver

Datasheet Summary

Description

The PBL 3774/1 is a switch-mode (chopper), constant-current driver IC with two channels, one for each winding of a two-phase stepper motor.

The circuit is similar to Ericsson´s PBL 3771/1 and PBL 3772/1.

Features

  • Dual chopper driver in a single package.
  • Operation at -40 °C.
  • 1000 mA continuous output current per channel.
  • Low power dissipation, 2.6 W at 2 x 750 mA output current.
  • Close matching between channels for high microstepping accuracy.
  • Specially matched to the Dual DAC PBM 3960.
  • Plastic 22-pin batwing DIP package or 28-pin power PLCC package with lead-frame for heatsinking through PC board copper. Phase 1 PBL 3774/1 Dis1 VR1 C.

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Datasheet preview – PBL3774-1

Datasheet Details

Part number PBL3774-1
Manufacturer Ericsson
File Size 88.17 KB
Description Dual Stepper Motor Driver
Datasheet download datasheet PBL3774-1 Datasheet
Additional preview pages of the PBL3774-1 datasheet.

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Full PDF Text Transcription

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February 1999 PBL 3774/1 Dual Stepper Motor Driver Description The PBL 3774/1 is a switch-mode (chopper), constant-current driver IC with two channels, one for each winding of a two-phase stepper motor. The circuit is similar to Ericsson´s PBL 3771/1 and PBL 3772/1. While all Dual stepper motor drivers are optimized for microstepping applications, the PBL 3774/1 is equipped with a TTL level compatible Disable input to simplify half-stepping operation. The circuit is well suited for microstepping applications together with the matching dual DAC (Digital-to-Analog Converter) PBM 3960/1. A complete driver system consists of these two ICs, a few passive components and a microprocessor for generation of the proper control and data codes required for microstepping.
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