L6482H

STMICROELECTRONICS  L6482H  芯片, 电机控制器, MICROSTPNG, 28HTSSOP

The is a cSPIN™ microstepping Motor Controller with motion engine and SPI. It is realized in analogue mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping. It integrates a dual full bridge gate driver for N-channel MOSFET power stages with embedded non dissipative overcurrent protection. Thanks to a new current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations. The digital control core can generate user defined motion profiles with acceleration, deceleration, speed or target position easily programmed through a dedicated register set. All application commands and data registers, including those used to set analogue values current protection trip point, deadtime, PWM frequency are sent through a standard 5Mbps SPI.

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Dual full bridge gate driver for N-channel MOSFETs

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Fully programmable gate driving

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Embedded Miller clamp function

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Programmable speed profile

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Up to 1/16 microstepping

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Advanced current control with auto-adaptive decay mode

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Integrated voltage regulators

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SPI interface

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Low quiescent standby currents

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Programmable non dissipative overcurrent protection

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Over-temperature protection

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5.5V Logic interface supply voltage

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18V Low-side gate driver supply voltage

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4W Total power dissipation Temperature=25°C