L6482 Datasheet, PDF (1/73 Pages) STMicroelectronics – cSPIN™: microstepping motor controller with motion engine and SPI

L6482
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 1/16 microstepping
■ Advanced current control with auto-adaptive
decay mode
■ Integrated voltage regulators
■ SPI interface
■ Low quiescent standby currents
■ Programmable non-dissipative overcurrent
protection
■ Overtemperature protection
Applications
■ Bipolar stepper motor
Description
The L6482, 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
HTSSOP38
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 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 L6482
“bullet proof”, as required by the most demanding
motor control applications.
Table 1.
Device summary
Order code
L6482H
L6482HTR
Package
HTSSOP38
HTSSOP38
Packaging
Tube
Tape and reel
December 2012
This is information on a product in full production.
Doc ID 023768 Rev 2
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