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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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L6472 데이터시트(PDF) 1 Page - STMicroelectronics |
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L6472 데이터시트(HTML) 1 Page - STMicroelectronics |
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1 / 69 page  January 2012 Doc ID 022729 Rev 1 1/69 69 L6472 dSPIN fully integrated microstepping motor driver with motion engine and SPI Features ■ Operating voltage: 8 - 45 V ■ 7.0 A output peak current (3.0 A r.m.s.) ■ Low RDSon 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 Applications ■ Bipolar stepper motor Description The L6472, 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, dead time, etc.) are sent through a standard 5- Mbit/s SPI. A very rich set of protections (thermal, low bus voltage, overcurrent) makes the L6472 “bullet proof”, as required by the most demanding motor control applications. Table 1. Device summary Order codes Package Packing L6472H HTSSOP28 Tube L6472HTR HTSSOP28 Tape and reel L6472PD POWERSO36 Tube L6472PDTR POWERSO36 Tape and reel HTSSOP28 POWERSO36 www.st.com |
유사한 부품 번호 - L6472 |
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