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L6470 데이터시트(PDF) 1 Page - STMicroelectronics

부품명 L6470
상세설명  dSPIN fully integrated microstepping motor driver with motion engine and SPI
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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This is information on a product in full production.
June 2012
Doc ID16737 Rev 4
1/70
70
L6470
dSPIN fully integrated microstepping motor driver with motion
engine and SPI
Datasheet
production data
Features
Operating voltage: 8 - 45 V
7.0 A out peak current (3.0 A r.m.s.)
Low RDS(on) Power MOSFETs
Programmable speed profile and positioning
Programmable power MOS slew rate
Up to 1/128 microstepping
Sensorless stall detection
SPI interface
Low quiescent and standby currents
Programmable non-dissipative overcurrent
protection on high and low-side
Two levels of overtemperature protection
Application
Bipolar stepper motors
Description
The L6470, 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 unique control system, a
true 1/128 steps 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 registers set. All commands
and data registers, including those used to set
analogue values (i.e. current control value,
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, motor stall) allows
the design of a fully protected application, as
required by the most demanding motor control
applications.
HTSSOP28
POWERSO36
Table 1.
Device summary
Order codes
Package
Packaging
L6470H
HTSSOP28
Tube
L6470HTR
HTSSOP28
Tape and reel
L6470PD
POWERSO36
Tube
L6470PDTR
POWERSO36
Tape and reel
www.st.com


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