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The L6470 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 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.
主要特性
- 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
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样片和购买
| 型号 | Marketing Status | Quantity | Budgetary Price (US$)* | Package | Packing Type | Temperature (°C) | ECCN (US) | Country of Origin | More info | Order from Distributors | Order from ST | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L6470HTR |
Active
|
1000 | 2.671 | HTSSOP28 | Tape And Reel | -40 | 150 | EAR99 | MALAYSIA | Check Availability | Get sample | |
| L6470PDTR |
Active
|
1000 | 3.093 | PowerSO 36 | Tape And Reel | -40 | 150 | EAR99 | MALAYSIA | Check Availability | Get sample | |
| L6470PD |
Active
|
1000 | 3.093 | PowerSO 36 | Tube | -40 | 150 | EAR99 | ITALY | Check Availability | Buy direct | |
| L6470H |
Active
|
1000 | 2.671 | HTSSOP28 | Tube | -40 | 150 | EAR99 | MALAYSIA | Check Availability | Buy direct | |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
开发工具硬件
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Picture Part number 制造商 Description STSW-SPIN002 ST Evaluation software with graphical user interface for STSPIN motor driver ICs 型号Evaluation software with graphical user interface for STSPIN motor driver ICs
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生态系统
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Picture Part number 制造商 Description 
X-NUCLEO-IHM02A1 ST Two axis stepper motor driver expansion board based on the L6470 for STM32 Nucleo 型号Two axis stepper motor driver expansion board based on the L6470 for STM32 Nucleo
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软件
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Picture Part number 制造商 Description stsw-spin004 ST Firmware library L6470, L6472 discovery 型号Firmware library L6470, L6472 discovery
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评估工具
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Picture Part number 制造商 Description 
EVAL6470H -- Fully integrated stepper motor driver mounting the L6470 
EVAL6470H-DISC -- L6470 Discovery: development tool to explore L6470 motor driver 
EVAL6470PD -- Fully integrated stepper motor driver mounting the L6470 in a high power PowerSO package 
STEVAL-PCC009V2 -- IBU Motor Control & IPS universal interface 型号Fully integrated stepper motor driver mounting the L6470
L6470 Discovery: development tool to explore L6470 motor driver
Fully integrated stepper motor driver mounting the L6470 in a high power PowerSO package
IBU Motor Control & IPS universal interface
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| 型号 | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L6470H |
Active
|
HTSSOP28 | 工业 | Ecopack2 | |
| L6470HTR |
Active
|
HTSSOP28 | 工业 | Ecopack2 | |
| L6470PD |
Active
|
PowerSO 36 | 工业 | Ecopack2 (**) | |
| L6470PDTR |
Active
|
PowerSO 36 | 工业 | Ecopack1 (*) |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
