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Product Detailed Parameters
- Description：IC MTR DRIVER 14.5V-17.5V 48SQFP
- Series：-
- Mfr：Vishay Siliconix
- Package：Tray
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushless DC (BLDC)
- Function：Controller - Commutation, Direction Management
- Output Configuration：Pre-Driver - Half Bridge (3)
- Interface：Parallel
- Technology：Power MOSFET
- Step Resolution：-
- Applications：General Purpose
- Current - Output：-
- Voltage - Supply：14.5V ~ 17.5V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：48-LQFP
- Supplier Device Package：48-SQFP (7x7)
- Grade：-
- Qualification：-
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Overview
The SI9979DS-E3 is a three-phase brushless DC motor controller manufactured by Vishay Siliconix. It operates within a supply voltage range of 20 V to 40 V and draws a typical operating current of 4.5 mA. The component is designed for surface mount installation in an SQFP-48 package. It supports an extended industrial temperature range from -40°C to +85°C. This integrated circuit manages the commutation of BLDC motors using Hall sensor inputs.
Feature Summary
- Integrates control logic for three-phase brushless DC motor commutation
- Accepts direct Hall effect sensor signals for rotor position feedback
- Provides drive outputs for external high-side and low-side power switches
Applications
- High-speed brushless DC motor drives
- Industrial motion control systems
- Automotive ignition and engine management circuits
Procurement Notes
Verify the specific suffix against official documentation, as the base model SI9979DS is listed as obsolete. Confirm RoHS compliance status for the E3 variant through current manufacturer datasheets or authorized distributors. Ensure the SQFP-48 footprint matches the target PCB design before procurement.
Selection Notes
Select this component when designing systems requiring integrated three-phase BLDC control with Hall sensor inputs. Verify that the required supply voltage falls between 20 V and 40 V. Ensure the application environment remains within the specified -40°C to +85°C operating temperature range for reliable performance.
Part Context
This part belongs to the Vishay Siliconix family of motor controllers and drivers. It is categorized under PMIC solutions for motion control applications. The device integrates necessary logic to interface directly with Hall sensors, simplifying the design of three-phase motor drive circuits compared to discrete solutions.
Replacement Considerations
The base model SI9979DS is marked as obsolete. Check for updated variants or alternative Vishay Siliconix BLDC controllers with compatible pinouts and electrical specifications.
