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The L6482HTR device, using analogue mixed-signal technology, is an advanced, fully integrated solution for microstepping two-phase bipolar stepper motors.

The L6482HTR integrates a dual full-bridge gate driver for the N-channel MOSFET power stage with embedded non-dissipative overcurrent protection. Thanks to a new current control, 1/16 microstepping is achieved through an adaptive attenuation mode that outperforms conventional implementations. The digital control core generates user-defined motion profiles and is easily programmable for acceleration, deceleration, velocity or target position via a dedicated register set. All application instructions and data registers, including those for setting analogue values (i.e. current protection trip points, dead time, PWM frequency, etc.), are sent via standard 5-Mbit/s SPI. Extensive protection features (thermal, low bus voltage, overcurrent, and motor stall protection) make the L6482 device ‘bulletproof’ for the most demanding motor control applications.

L6482HTR Features

 Operating voltage: 7.5 V - 85 V

 Dual full-bridge gate driver for N-channel MOSFETs

 Fully programmable gate driver

 Embedded Miller clamp function

 Programmable speed profile

 Up to 1/16 microsteps

 Advanced current control with auto-adaptive attenuation mode

 Integrated regulator

 SPI interface

 Low quiescent standby current

 Programmable non-dissipative overcurrent protection

 Over-temperature protection

Product Attributes

Motor Type - Stepper: Bipolar  

Function: Controller - Commutation, Direction Management  

Output Configuration: Pre-Driver - Half Bridge (4)  

Interface: SPI  

Technology Power: MOSFET  

Stepping Resolution: 1 ~ 1/16  

Application: General Purpose   

Voltage - Supply: 3.3V, 5V    

Operating Temperature: -40°C ~ 150°C (TJ)  

Mounting Type: Surface Mount  

Package/Housing: 38-TFSOP (0.173’, 4.40mm wide) bare pads  

Supplier Device Package: 38-HTSSOP 

L6482HTR Applications

 Bipolar stepper motors

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