L6472PD Ver la hoja de datos (PDF) - STMicroelectronics
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L6472PD Datasheet PDF : 70 Pages
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L6472
Fully integrated microstepping motor driver
Datasheet - production data
Applications
Bipolar stepper motor
HTSSOP28
POWERSO36
Features
Operating voltage: 8 - 45 V
7.0 A output peak current (3.0 A r.m.s.)
Low RDS(on) power MOSFETs
Programmable speed profile
Programmable power MOSFET slew rate
Up to 1/16 microstepping
Predictive current control with adaptive decay
Non dissipative current sensing
SPI interface
Low quiescent and standby currents
Programmable non dissipative overcurrent
protection on all power MOSFETs
Two levels of overtemperature protection
Description
The L6472 device, 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 low RDS(on) DMOS full bridge with all of the
power switches equipped with an accurate on-
chip current sensing circuitry suitable for non
dissipative current control and 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 control value, current protection trip
point, deadtime, etc.) are sent through a standard
5-Mbit/s SPI.
A very rich set of protections (thermal, low bus
voltage, overcurrent) makes the L6472 device
“bullet proof”, as required by the most demanding
motor control applications.
Order codes
L6472H
L6472HTR
L6472PD
L6472PDTR
Table 1. Device summary
Package
HTSSOP28
HTSSOP28
POWERSO36
POWERSO36
Packing
Tube
Tape and reel
Tube
Tape and reel
March 2015
This is information on a product in full production.
DocID022729 Rev 5
1/70
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