3PEAK TPM8860 stepper motor driver: Core Features and Applications
The 3PEAK TPM8860 is a versatile 48V, 8-channel smart low-side driver array designed for driving various inductive, resistive, and capacitive loads. With integrated diagnostics, protection features, and support for high-speed communication, this IC is well-suited for applications such as stepper motor control, relays, solenoids, and industrial automation systems.
High-Voltage Operation: The TPM8860 supports up to 48V maximum operating voltage, enabling the control of high-power motors and inductive loads.
Channel Control: Each of the 8 output channels can be controlled individually through a 16-bit shift register interface.
Protection Features: The driver includes comprehensive protection mechanisms such as over-current, short-circuit, over-temperature, and open-load diagnostics, ensuring robust operation in harsh environments.
Stepper Motor Control with 3PEAK TPM8860
The TPM8860 is ideal for controlling stepper motors in industrial settings due to its integrated features and performance.
Integrated Free-Wheeling Diodes: Each of the 8 low-side drivers includes free-wheeling diodes to handle inductive loads such as motors and solenoids, making it a suitable choice for stepper motor control.
Daisy-Chain Communication: The shift register-based communication interface allows multiple TPM8860 devices to be connected in a daisy-chain configuration, reducing MCU I/O requirements and enabling simplified system designs.
High-Speed Data Transfer: With a 10 MHz, 16-bit serial interface, the TPM8860 supports high-speed communication for real-time control in precision motor applications .
Key Specifications and Features of the TPM8860
The TPM8860 offers a comprehensive set of features, making it an optimal choice for driving various inductive, resistive, and capacitive loads in industrial and automotive applications:
500 mΩ Low RDS(ON): Provides efficient switching performance with a maximum 1.5A driver capability per channel.
Integrated Free-Wheeling Diodes: Protects the system when driving inductive loads such as motors and solenoids.
Parallel Channel Driving Capability: Allows multiple channels to be driven simultaneously for higher current applications.
High-Speed Interface: 10 MHz, 16-bit shift register interface with built-in input noise filtering, supporting daisy-chain communication for easy system expansion.
Comprehensive Diagnostics and Protection:
Power On Reset ensures reliable startup.
Over-Current Protection prevents damage from excessive current.
Short-Circuit Protection safeguards against unexpected load conditions.
Over-Temperature Protection limits thermal stress during operation.
Open-Drain Fault Alarm provides fault indication for better monitoring and system safety.
These specifications underline the TPM8860’s suitability for high-performance applications requiring robust control and protection.
Applications of the TPM8860
The TPM8860 is highly versatile and suited for a wide range of applications that require efficient control of various load types. Its 8-channel low-side driver array, protection features, and integrated diagnostics make it an excellent choice for:
Relays, Solenoids, and Unipolar Stepper Motors: Ideal for motor control systems where individual channel control and protection are crucial.
Electric Expansion Valves and Linear Valves: Provides precise control in HVAC and industrial fluid control systems.
LEDs and Heaters: Ensures reliable switching and control of lighting and heating systems with robust diagnostics.
PLC Digital Outputs: Seamlessly integrates into industrial automation environments for controlling various digital outputs.
Electromagnetic Loads: Effective in controlling inductive loads, such as transformers and electromagnets, with built-in free-wheeling diodes for energy management
Conclusion
The 3PEAK TPM8860 stepper motor driver offers a powerful solution for controlling stepper motors, solenoids, and other inductive loads in industrial and automotive applications. With integrated diagnostics, robust protection features, and flexible communication interfaces, this 8-channel smart low-side driver provides engineers with the performance and reliability needed for high-power motor control systems.
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