L6474：Stepper motor driver with up to 16 microsteps with SPI and advanced current control
The L6474 device, realized in analog mixed signal technology, integrates a dual low RDS(on)DMOS full bridge with all power switches equipped with an accurate on-chip current sensing circuitry suitable for non-dissipative current control and overcurrent protections. Thanks to a new current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations.
All data registers, including those used to set analogue 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 L6474 device “bullet proof” as required by the most demanding motor control applications.
Key Features
- Operating voltage: 8 - 45 V
- 7.0 A output peak current (3.0 Ar.m.s.
)
- Low RDS(on)
power MOSFETs
- Programmable power MOS slew rate
- Up to 1/16 microstepping
- Current control with adaptive decay
- Non-dissipative current sensing
- SPI interface
- Low quiescent and standby currents
- Programmable non-dissipative overcurrent protection on all power MOS
- Two-level overtemperature protection
Product Specifications
Application Notes
User Manuals
Design Notes & Tips
Presentations
Flyers
Selection Guides
Brochures
Software Development Tools
| Part Number | Manufacturer | Description |
|---|
| STSW-SPIN002 | ST | Evaluation software with graphical user interface for STSPIN motor driver ICs |
STM32 Open Development Environment
| Part Number | Manufacturer | Description |
|---|
| X-NUCLEO-IHM01A1 | ST | Stepper motor driver expansion board based on L6474 for STM32 Nucleo |
MCUs Embedded Software
| Part Number | Manufacturer | Description |
|---|
| X-CUBE-SPN1 | ST | Stepper motor driver software expansion for STM32Cube |
Solution Evaluation Tools
| Part Number | Manufacturer | Description |
|---|
| EVAL6474H | | Stepper motor driver mounting the L6474 |
| STEVAL-3DP001V1 | ST | Evaluation board for 3D printer |
Sample & Buy
| Part Number | Quantity | Unit Price (US$)
* | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| L6474H | 1000 | 2.5 | HTSSOP28 | Tube | -40 | 150 | NEC | EAR99 | MALAYSIA |
| L6474PDTR | 1000 | 2.851 | PowerSO 36 | Tape And Reel | -40 | 150 | NEC | EAR99 | ITALY |
| L6474HTR | 1000 | 2.5 | HTSSOP28 | Tape And Reel | -40 | 150 | NEC | EAR99 | MALAYSIA |
| L6474PD | 1000 | 2.851 | PowerSO 36 | Tube | -40 | 150 | NEC | EAR99 | ITALY |
Quality & Reliability
