L6480 datasheet(1/73 Pages) STMICROELECTRONICS

Part #	L6480

Description	The L6480, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping.

PDF	73 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 73 page

This is information on a product in full production.

December 2012

Doc ID 023278 Rev 3

1/73

73

L6480

cSPIN™: microstepping motor controller

with motion engine and SPI

Datasheet

− production data

Features

■ Operating voltage: 7.5 V - 85 V

■ Dual full-bridge gate driver for N-channel

MOSFETs

■ Fully programmable gate driving

■ Embedded Miller clamp function

■ Programmable speed profile

■ Up to 1/128 microstepping

■ Sensorless stall detection

■ Integrated voltage regulators

■ SPI interface

■ Low quiescent standby currents

■ Programmable non-dissipative overcurrent

protection

■ Overtemperature protection

Applications

■ Bipolar stepper motor

Description

The L6480, realized in analog 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 unique voltage mode driving mode which

compensates for BEMF, bus voltage and motor

winding variations, the microstepping of a true

1/128-step resolution is achieved. 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

analog values (i.e. current protection trip point,

deadtime, PWM frequency, etc.) are sent through

a standard 5-Mbit/s SPI. A very rich set of

protections (thermal, low bus voltage, overcurrent

and motor stall) make the L6480 “bullet proof”, as

required by the most demanding motor control

applications.

HTSSOP38

Table 1.

Device summary

Order codes

Package

Packaging

L6480H

HTSSOP38

Tube

L6480HTR

HTSSOP38

Tape and reel

www.st.com

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