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UC3770B - High Performance Stepper Motor Driver

Download the UC3770B datasheet PDF. This datasheet also covers the UC3770A variant, as both devices belong to the same high performance stepper motor driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The UC3770A and UC3770B are high-performance full bridge drivers that offer higher current and lower saturation voltage than the UC3717 and the UC3770.

Included in these devices are LS-TTL compatible logic inputs, current sense, monostable, thermal shutdown, and a power H-bridge output stage.

Key Features

  • Full-Step, Half-Step and Micro-Step Capability.
  • Bipolar Output Current up to 2A.
  • Wide Range of Motor Supply Voltage: 10.
  • 50V.
  • Low Saturation Voltage.
  • Wide Range of Current Control: 5mA.
  • 2A.
  • Current Levels Selected in Steps or Varied Continuously.
  • Thermal Protection and Soft Intervention.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UC3770A-Unitrode.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UC3770B
Manufacturer Unitrode
File Size 125.99 KB
Description High Performance Stepper Motor Driver
Datasheet download datasheet UC3770B Datasheet

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Other Datasheets by Unitrode

Part Number Description
UC3770 High Performance Stepper Motor Drive Circuit
UC3770A High Performance Stepper Motor Driver
UC3702 Quad PWM Relay Driver
UC3704 Bridge Transducer Switch
UC3705 High Speed Power Driver

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.

View original datasheet text
High Performance Stepper Motor Drive Circuit UC3770A UC3770B FEATURES • Full-Step, Half-Step and Micro-Step Capability. • Bipolar Output Current up to 2A. • Wide Range of Motor Supply Voltage: 10–50V • Low Saturation Voltage • Wide Range of Current Control: 5mA–2A. • Current Levels Selected in Steps or Varied Continuously. • Thermal Protection and Soft Intervention. DESCRIPTION The UC3770A and UC3770B are high-performance full bridge drivers that offer higher current and lower saturation voltage than the UC3717 and the UC3770. Included in these devices are LS-TTL compatible logic inputs, current sense, monostable, thermal shutdown, and a power H-bridge output stage.