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Product Detailed Parameters
- Description：IC MOTOR DRIVER 4.5V-5.5V 32LQFP
- Series：-
- Mfr：onsemi
- 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：I2C, SPI
- Technology：-
- Step Resolution：-
- Applications：General Purpose
- Current - Output：-
- Voltage - Supply：4.5V ~ 5.5V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-LQFP
- Supplier Device Package：32-LQFP (7x7)
- Grade：-
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Overview
The FCM8531RQY is a sensorless brushless DC (BLDC) motor controller manufactured by onsemi. It integrates three half-bridge pre-drivers for gate drive functionality and supports I²C and SPI communication interfaces. The device operates within a supply voltage range of 4.5 V to 5.5 V and is rated for an ambient operating temperature between -40°C and 85°C. It is housed in a 32-LQFP surface-mount package with dimensions of 7x7 mm, designed for general-purpose motion control applications requiring integrated commutation and direction management.
Feature Summary
- Integrates three half-bridge pre-drivers for BLDC motor phase control
- Supports digital configuration via I²C and SPI interfaces
- Provides sensorless commutation and direction management capabilities
Applications
- General-purpose BLDC motor control systems
- Industrial automation actuators
- Consumer appliance fan and pump drives
Procurement Notes
Verify the specific datasheet revision and ordering suffix when sourcing. Confirm that the 32-LQFP package matches the target PCB footprint. Ensure the design accommodates the specified 4.5 V to 5.5 V power supply constraints and thermal requirements for the -40°C to 85°C operating range.
Selection Notes
Select this component for applications requiring integrated sensorless BLDC control with digital interface flexibility. The inclusion of pre-drivers reduces external component count compared to discrete solutions. Verify compatibility with the host microcontroller's I²C or SPI protocol implementation before finalizing the design.
Part Context
This part belongs to onsemi's motor control portfolio, specifically targeting sensorless BLDC applications. It serves as a dedicated controller combining logic and driver stages. The manufacturer also produces related evaluation boards and complementary power devices for complete motor drive solutions.
Replacement Considerations
Check for direct pin-compatible alternatives within the same product family. Verify if updated revisions offer improved thermal performance or additional safety features. Cross-reference electrical specifications to ensure equivalent current handling and voltage ratings.
