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Product Detailed Parameters
- Description：IC MOTOR BLCD FET DRIVER 64TQFP
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：-
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The L9906TR is a Brushless DC (BLDC) motor driver integrated circuit manufactured by STMicroelectronics. It integrates three high-current half-bridge drivers capable of driving external N-channel power MOSFETs, making it suitable for demanding automotive and industrial applications. The device features an integrated low-dropout regulator to supply internal logic and gate drive voltages. It supports various PWM control schemes and includes comprehensive protection mechanisms such as overcurrent, overtemperature, and undervoltage lockout. The component is housed in a 64-pin Thin Quad Flat Package (TQFP) with exposed pad for enhanced thermal performance.
Feature Summary
- Integrates three half-bridge drivers for direct control of external N-channel MOSFETs
- Includes an integrated low-dropout voltage regulator for internal logic and gate drive supply
- Provides robust fault detection and protection against overcurrent, overtemperature, and undervoltage conditions
Applications
- Automotive cooling fan motors
- Electric power steering systems
- Industrial servo motor drives
Procurement Notes
Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing from distributors. Confirm RoHS compliance status and lead times directly with authorized suppliers or the manufacturer's official channels. Ensure the ordering part number matches the exact package variant required for your PCB footprint.
Selection Notes
Select this component for applications requiring high-side and low-side drive capabilities for BLDC motors. Evaluate the thermal dissipation requirements of the TQFP package against your system's ambient temperature constraints. Ensure the external MOSFET selection aligns with the driver's output current capabilities and voltage ratings.
Part Context
This component belongs to the L990x family of motor drivers designed for robust operation in electric vehicle and industrial environments. It serves as a bridge between microcontroller logic signals and high-power motor phases, simplifying the design of complex motor control systems by integrating necessary driver stages and protection logic into a single package.
Replacement Considerations
Consult official STMicroelectronics documentation for verified cross-reference part numbers. Do not substitute with generic equivalents without verifying pin compatibility and electrical specifications.
