Overview
The L6480HTR, produced by STMicroelectronics, is an advanced fully integrated microstepping motor controller realized in analog mixed signal technology. This device is designed to drive two-phase bipolar stepper motors with high precision and reliability. It features a dual full bridge gate driver for N-channel MOSFET power stages, along with embedded non-dissipative overcurrent protection. The L6480HTR achieves true 1/128-step microstepping resolution through a unique voltage mode driving mode that compensates for back-EMF, bus voltage, and motor winding variations. The digital control core allows for user-defined motion profiles, including acceleration, deceleration, speed, or target position, all easily programmed via a standard 5-Mbit/s SPI interface.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 7.5 V - 85 V |
| Package | TSSOP-38L |
| Grade | Industrial |
| RoHS Compliance Grade | Ecopack2 |
| Longevity Commitment | 15 years |
| Operating Temperature (°C) | -40 to 150 |
| Microstepping Resolution | Up to 1/128 steps |
| Interface | 5-Mbit/s SPI |
Key Features
- Dual full bridge gate driver for N-channel MOSFETs
- Fully programmable gate driving
- Embedded Miller clamp function
- Programmable speed profile
- Sensorless stall detection
- Integrated voltage regulators
- Low quiescent standby currents
- Programmable non-dissipative overcurrent protection
- Overtemperature protection
Applications
The L6480HTR is suitable for a variety of demanding motor control applications, including:
- Industrial automation
- Medical devices
- Printers and plotters
- Textile machines
- Any application requiring precise and reliable bipolar stepper motor control
Q & A
- What is the operating voltage range of the L6480HTR?
The operating voltage range is 7.5 V to 85 V.
- What is the microstepping resolution of the L6480HTR?
The L6480HTR can achieve up to 1/128-step microstepping resolution.
- What type of interface does the L6480HTR use for communication?
The L6480HTR uses a standard 5-Mbit/s SPI interface.
- What kind of protections does the L6480HTR offer?
The L6480HTR includes thermal, low bus voltage, overcurrent, and motor stall protections.
- What is the package type of the L6480HTR?
The package type is TSSOP-38L.
- Is the L6480HTR RoHS compliant?
Yes, the L6480HTR is RoHS compliant with an Ecopack2 grade.
- What is the longevity commitment for the L6480HTR?
The longevity commitment is 15 years.
- Can the L6480HTR be programmed for different motion profiles?
Yes, the L6480HTR allows for user-defined motion profiles including acceleration, deceleration, speed, or target position.
- Does the L6480HTR have integrated voltage regulators?
Yes, the L6480HTR includes integrated voltage regulators.
- What is the operating temperature range of the L6480HTR?
The operating temperature range is -40°C to 150°C.
