L6470
dSPIN: Fully integrated microstepping motor driver with motion engine and SPI-
Active
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.
Download
Datasheet
Key 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
Circuit Diagram
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DS6582: dSPIN™ fully integrated microstepping motor driver with motion engine and SPI
|
5.0 | 738 KB |
Application Notes
| Description | Version | Size |
|---|---|---|
|
AN3103: Fully integrated microstepping motor driver using the L6470
|
1.1 | 1,210 KB |
|
AN3980: STM32 firmware library for dSPIN L6470
|
1.0 | 774 KB |
|
AN3991: How to drive multiple stepper motors with the L6470 motor driver
|
1.0 | 1,759 KB |
|
AN4144: Voltage mode control operation and parameter optimization
|
1.0 | 664 KB |
|
AN4158: Peak current control with automatic decay adjustment and predictive current control: basics and setup
|
1.0 | 811 KB |
|
AN4241: dSPIN™ family: fully integrated stepper motor drivers
|
1.0 | 280 KB |
|
AN4290: dSPIN™, cSPIN™ and easySPIN™ family communication protocol
|
1.0 | 816 KB |
Design Notes & Tips
| Description | Version | Size |
|---|---|---|
|
DT0003: Implementing fast decay mode chopping using the L6506
|
1.0 | 275 KB |
|
DT0006: A low cost current sensor for design work
|
1.0 | 442 KB |
Presentations & Training Material
Presentations
| Description | Version | Size |
|---|---|---|
|
PowerSPIN - Monolithic motor control ICs
|
1.0.0 | 5,245 KB |
|
STM32F1xx motor-control firmware for dSPIN - quick guide
|
1.0.0 | 193 KB |
|
dSPIN Future in motion - L6470 presentation
|
1.0.0 | 2,257 KB |
Related Tools and Software
Related Tools and Software
| Part Number | Description |
|---|---|
| EVAL6470H | Fully integrated stepper motor driver mounting the L6470 |
| EVAL6470PD | Fully integrated stepper motor driver mounting the L6470 in a high power PowerSO package |
| STEVAL-PCC009V1 | Universal USB to serial communication interface demonstration board based on the STM32 |
| STEVAL-PCC009V2 | IBU universal interface based on the STM32x |
| STSW-SPIN002 | SPIN family evaluation software for cSPIN and dSPIN |
| STSW-STM32033 | STM32F1xx motor control firmware library for the L6470 dSPIN IC |
Publications and Collaterals
Flyer
| Description | Version | Size |
|---|---|---|
|
dSPIN Future in motion
|
1.0.0 | 213 KB |
Brochure
| Description | Version | Size |
|---|---|---|
|
Semiconductor solutions for healthcare applications
|
1.0 | 665 KB |
Sample & Buy
Top| Part Number | Marketing Status | Package | Packing Type | Operating Temperature (min) | Operating Temperature (max) | Automotive Grade | Order From ST | Unit Price (US$)* @ 1000 | Distributor Availability | RoHS Compliance Grade | Download Material Declaration** |
|||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L6470H | Active | HTSSOP28 | Tube | -40 | 150 | _ | - | 3.4 |
| Ecopack2 | PDF XML | |||||||||||||||||||||||||||||||||||
| L6470HTR | Active | HTSSOP28 | Tape And Reel | -40 | 150 | _ | 3.4 |
| Ecopack2 | PDF XML | ||||||||||||||||||||||||||||||||||||
| L6470PD | Active | PowerSO 36 | Tube | -40 | 150 | _ | 3.8 |
| Ecopack1 | PDF XML | ||||||||||||||||||||||||||||||||||||
| L6470PDTR | Active | PowerSO 36 | Tape And Reel | -40 | 150 | _ | - | 3.8 |
| Ecopack1 | PDF XML | |||||||||||||||||||||||||||||||||||
(*) 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 (**) 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. |
||||||||||||||||||||||||||||||||||||||||||||||
