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SI9979DS-E3 The Vishay Dale SI9979DS-E3 is a 3-Phase Brushless DC Motor Controller IC. It operates with a supply voltage range of 14.5V to 17.5V and is designed for surface mount applications.
Mfr Part #:

SI9979DS-E3

Available from 1 distributors
Mfr Name: Vishay
Vishay
The Vishay Dale SI9979DS-E3 is a 3-Phase Brushless DC Motor Controller IC. It operates with a supply voltage range of 14.5V to 17.5V and is designed for surface mount applications.
✓ Total Stock: 180 pcs
$ Price Range: $2.25

SI9979DS-E3 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Speed Components Ltd ✓
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180 pcs
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180 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

SI9979DS-E3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Function
Interface
Motor Type
Mounting Type
Operating Temperature
Operating Voltage
Output Configuration
Supplier Device Package
Technology
Voltage
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SI9979DS-E3 Description

Short technical summary and product information.

The Vishay Dale SI9979DS-E3 is a monolithic 3-phase brushless DC motor controller with integral high-side drive circuitry. It supports Hall-effect commutation with 60 or 120 sensor spacing and an all n-channel MOSFET 3-phase bridge.

 

Key features include PWM input, direction control, quadrature selection, and a tachometer output. Protection features such as cross conduction protection, current limiting, and undervoltage lockout are integrated. The device operates over a wide input voltage range and is available in a 48-pin SQFP package.

 

This controller is suitable for general-purpose applications requiring precise motor control. Its surface mount package and robust feature set make it a versatile choice for various motor drive systems.

SI9979DS-E3 Quick Information

Product Type: Motor Driver IC
Canonical Name: Vishay Siliconix Si9979 3-Phase Brushless DC Motor Controller

SI9979DS-E3 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SI9979DS-E3 Estimated Pricing

Qty Low High
1+ $2.25 $2.25

Estimated market price range - modelled values for guidance only, not live distributor offers.

SI9979DS-E3 Features

  • 3-Phase Brushless DC Motor Controller IC
  • Hall-Effect Commutation Support
  • Integral High-Side Drive
  • Surface Mount 48-SQFP Package
  • Wide Operating Temperature Range

SI9979DS-E3 Applications

  • Suitable for general purpose motor control
  • Used in BLDC motor drive systems
  • Applications requiring precise commutation
  • Integration into compact designs

SI9979DS-E3 FAQs

5 frequently asked questions generated from this part’s specifications.
What are the voltage requirements for the SI9979DS-E3?

The device requires a supply voltage of 14.5-17.5V for its internal circuitry and a motor input voltage of 20-40V DC.

What package is the SI9979DS-E3 available in?

It is available in a 48-LQFP package (also designated as 48-SQFP 7x7mm) for surface mount mounting.

What are the operating temperature ranges?

The D suffix version operates from -40°C to 85°C, the C suffix version from 0°C to 70°C, and the junction temperature range is -40°C to 150°C.

What type of motor is the SI9979DS-E3 designed for?

It is designed for Brushless DC (BLDC) motors.

What is the output configuration?

Pre-Driver - Half Bridge (3) for three-phase BLDC motors.

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