Overview
The L6482H, produced by STMicroelectronics, is an advanced fully integrated microstepping motor controller designed for driving two-phase bipolar stepper motors. Realized in analog mixed signal technology, this device offers a comprehensive solution for demanding motor control applications. It integrates a dual full bridge gate driver for N-channel MOSFET power stages, along with embedded non-dissipative overcurrent protection. The L6482H features a digital control core that can generate user-defined motion profiles, including acceleration, deceleration, speed, or target position, all easily programmed through a dedicated register set via a standard 5-Mbit/s SPI interface.
Key Specifications
| Parameter | Specification |
|---|---|
| Operating Voltage | 7.5 V - 85 V |
| Package | HTSSOP-38L |
| Grade | Industrial |
| RoHS Compliance Grade | Ecopack2 |
| Operating Temperature (°C) | -40 to 150 |
| Microstepping Resolution | Up to 1/16 |
| Interface | 5-Mbit/s SPI |
| Protection Features | Thermal, low bus voltage, overcurrent, motor stall |
Key Features
- Dual full bridge gate driver for N-channel MOSFETs
- Fully programmable gate driving
- Embedded Miller clamp function
- Programmable speed profile
- Advanced current control with auto-adaptive decay mode
- Integrated voltage regulators
- Low quiescent standby currents
- Programmable non-dissipative overcurrent protection
- Overtemperature protection
Applications
The L6482H is suitable for a variety of applications involving bipolar stepper motors, particularly in industrial settings where precise motor control and robust protection mechanisms are essential. Typical applications include:
- Industrial automation
- Medical devices
- Printers and plotters
- Robotic systems
- Other precision motion control systems
Q & A
- What is the operating voltage range of the L6482H?
The operating voltage range of the L6482H is 7.5 V to 85 V.
- What type of motor does the L6482H support?
The L6482H supports two-phase bipolar stepper motors.
- What is the maximum microstepping resolution of the L6482H?
The L6482H can achieve up to 1/16 microstepping resolution.
- What interface does the L6482H use for communication?
The L6482H uses a standard 5-Mbit/s SPI interface for communication.
- What protection features are integrated into the L6482H?
The L6482H includes thermal, low bus voltage, overcurrent, and motor stall protections.
- What package types are available for the L6482H?
The L6482H is available in HTSSOP-38L packages, either in tube or tape and reel packaging.
- Can the gate driving be programmed in the L6482H?
Yes, the gate driving in the L6482H is fully programmable.
- Does the L6482H have integrated voltage regulators?
Yes, the L6482H includes integrated voltage regulators.
- What is the purpose of the auto-adaptive decay mode in the L6482H?
The auto-adaptive decay mode in the L6482H enhances current control by optimizing the decay process, outperforming traditional implementations.
- Is the L6482H RoHS compliant?
Yes, the L6482H is RoHS compliant with an Ecopack2 grade.
