L6482H

Overview

The L6482H is a fully integrated microstepping motor controller and driver designed for two-phase bipolar stepper motors. It features an embedded motion engine capable of generating programmable acceleration, deceleration, speed, and target position profiles via SPI. The device integrates a dual full-bridge gate driver for N-channel MOSFETs with non-dissipative overcurrent protection and auto-adaptive decay mode current control. Operating voltage ranges from 7.5 V to 85 V, supporting up to 1/16 microstepping resolution. Key electrical parameters include a 96 mA output current, 3.8 mA quiescent standby current, and operation within a temperature range of -40°C to +150°C.

Feature Summary

• Integrates a digital motion engine for programmable trajectory generation without external MCU processing
• Features advanced current control with adaptive decay mode for high-resolution microstepping
• Includes comprehensive protection mechanisms such as thermal shutdown, low bus voltage detection, and motor stall sensing

Applications

• Industrial automation systems requiring precise stepper motor positioning
• Medical equipment drive mechanisms
• Security and access control actuators

Procurement Notes

Verify the specific suffix (e.g., H) against the design specification to ensure compatibility with the intended power stage configuration. Confirm package availability in HTSSOP-38 format. Check RoHS compliance status prior to final procurement approval. Ensure ordering quantities align with manufacturer tube or reel packaging constraints.

Selection Notes

Select this component when application requirements demand integrated motion profiling capabilities alongside high-voltage stepper motor driving. The device is suitable for designs needing robust fault protection and SPI-based digital control. Consider the operating voltage range and thermal performance limits relative to the system's power supply and enclosure environment.

Part Context

The L6482H belongs to the STSPIN-L64 series of motor controllers. This family focuses on simplifying stepper motor applications by embedding complex motion algorithms directly into the driver IC. The L6482 variant specifically targets higher voltage applications compared to lower voltage counterparts in the same product line.

Replacement Considerations

L6480H serves as a related variant within the same family, typically differing in voltage specifications or feature sets.