SI9987CY-T1-E3

Overview

The SI9987CY-T1-E3 is a half-bridge motor driver manufactured by Vishay Siliconix, designed for driving bipolar stepper motors. It integrates control logic and power MOSFETs in an SOIC-8 package. The device operates on a supply voltage range of 3.8 V to 13.2 V with a quiescent current of 2.5 mA. It supports surface-mount installation and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Integrates dual half-bridge drivers for bipolar stepper motor control
• Combines control logic with power MOSFET output stages
• Supports low-power operation via minimal quiescent current consumption

Applications

• Bipolar stepper motor drive systems
• General-purpose motion control applications
• Voice coil motor actuation circuits

Procurement Notes

This component is officially designated as End-of-Life (EOL) by the manufacturer. Verification of final availability through authorized distributors is required. Designers should confirm RoHS compliance status and review official Product Change Notices for any manufacturing updates prior to procurement planning.

Selection Notes

Select this part for integrated bipolar stepper motor solutions requiring a compact SOIC-8 footprint. Ensure the application voltage remains within the 3.8 V to 13.2 V range. Verify thermal management requirements against the specified operating temperature limits and package power dissipation capabilities.

Part Context

The SI9987 series belongs to Vishay Siliconix's portfolio of integrated motor drivers. This specific model combines gate drive and power switching in a single IC, reducing board space compared to discrete solutions. It is part of the broader PMIC category focused on motion control and ignition driver applications.

Replacement Considerations

Consult official EOL notifications for recommended alternatives. Cross-reference with other Vishay half-bridge drivers or general-purpose motor controllers that match the SOIC-8 pinout and voltage specifications.