SI9987DY-E3

Overview

The SI9987DY-E3 is a buffered H-bridge motor driver manufactured by Vishay Siliconix. It operates within a supply voltage range of 4.5 V to 16 V and supports continuous output currents up to 2 A per channel. The device features a low quiescent current of 2.5 mA and functions reliably across an operating temperature range from 0°C to +70°C. Packaged in an SOIC-8 surface-mount format, it integrates protection mechanisms including thermal shutdown and under-voltage lockout for robust performance.

Feature Summary

• Integrated buffered H-bridge topology for direct drive capability
• Built-in thermal shutdown and under-voltage lockout protection
• Low quiescent current consumption for power efficiency

Applications

• DC motor control systems
• Solenoid drivers
• Valve actuation circuits

Procurement Notes

Verify the specific suffix 'E3' confirms lead-free compliance and RoHS status as per manufacturer documentation. Confirm package marking and pinout alignment with design requirements before integration. Check official channels for current lifecycle status, as availability may be restricted.

Selection Notes

Select this component when a single-chip solution for bidirectional DC motor control is required. Ensure the load current does not exceed the 2 A rating without adequate thermal management. Verify that the input logic levels are compatible with the controlling microcontroller or interface circuitry.

Part Context

This part belongs to the SI9987 family of motor drivers from Vishay Siliconix. It serves as a specialized integrated circuit designed to simplify the driving of inductive loads such as motors and solenoids. The device consolidates high-side and low-side switching elements into a compact SOIC-8 package.

Replacement Considerations

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