E-PBL3717A

Overview

The E-PBL3717A is a monolithic integrated circuit designed to control and drive one phase of a bipolar stepper motor using chopper control for phase current regulation. It features a full H-bridge driver with four internal clamp diodes for current recirculation. The device supports full step, half step, and quarter step operating modes. It accommodates motor supply voltages from 10 V up to 46 V and delivers a bipolar output current up to 1 A. Current levels are externally selectable in three steps via logic inputs or controlled digitally/analogously. The component includes thermal protection with soft intervention and low saturation voltage with an integrated bootstrap.

Feature Summary

• Monolithic IC controlling and driving one phase of a bipolar stepper motor with chopper control
• Full H-bridge driver with four internal clamp diodes for current recirculation
• Supports full step, half step, and quarter step operating modes
• Thermal protection with soft intervention

Applications

• Bipolar stepper motor phase control
• Stepper motor drive subsystems requiring chopper control
• Motor systems utilizing full, half, or quarter step modes

Procurement Notes

Verify the exact suffix against official STMicroelectronics documentation to confirm package type and temperature range specifications. Ensure compatibility with the required motor supply voltage and current settings before procurement. Cross-reference the datasheet version to validate feature availability.

Selection Notes

Select this component for applications requiring precise single-phase bipolar stepper motor control with chopper regulation. Consider the 10 V to 46 V supply range and 1 A output capability when matching motor requirements. Evaluate the need for external current sensing resistors and RC networks for decay time programming during system design.

Part Context

The PBL3717A series belongs to the family of stepper motor drivers manufactured by STMicroelectronics. These devices are engineered to form complete drive subsystems when paired with a second unit and minimal external components. The technology focuses on providing robust motor control with integrated protection mechanisms suitable for industrial and commercial automation environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.