L6474
easySPIN - fully integrated microstepping motor driver-
Active
The L6474, 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, 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 L6474 “bullet proof” as required by the most demanding motor control applications.
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Datasheet
Key Features
- Operating voltage: 8 - 45 V
- 7.0 A output peak current (3.0 A r.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
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DS8773: easySPIN – fully integrated microstepping motor driver
|
3.0 | 670 KB |
Application Notes
| Description | Version | Size |
|---|---|---|
|
AN4158: Peak current control with automatic decay adjustment and predictive current control: basics and setup
|
1.0 | 811 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 |
Presentations & Training Material
Presentations
| Description | Version | Size |
|---|---|---|
|
PowerSPIN - Monolithic motor control ICs
|
1.0.0 | 5,245 KB |
|
STM32 F1 firmware library for easySPIN (L6474) motor driver - quick guide
|
1.0.0 | 383 KB |
Related Tools and Software
Related Tools and Software
| Part Number | Description |
|---|---|
| EVAL6474H | Stepper motor driver mounting the L6474 |
| STSW-MOTOR006 | easySPIN evaluation software |
| STSW-STM32056 | STM32F1xx motor control firmware for easySPIN L6474 |
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** |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L6474H | Active | HTSSOP28 | Tube | -40 | 150 | _ | - | 2.5 |
| Ecopack2 | PDF XML | ||||||||||||||||||||||||||||||
| L6474HTR | Active | HTSSOP28 | Tape And Reel | -40 | 150 | _ | 2.5 |
| Ecopack2 | PDF XML | |||||||||||||||||||||||||||||||
| L6474PD | Active | PowerSO 36 | Tube | -40 | 150 | _ | - | 2.851 |
| Ecopack1 | PDF XML | ||||||||||||||||||||||||||||||
| L6474PDTR | Active | PowerSO 36 | Tape And Reel | -40 | 150 | _ | 2.851 |
| 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. |
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