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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.主要特性
- 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
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 | |||||||||||
| L6474H |
Active
|
1000 | 2.221 | HTSSOP28 | Tube | -40 | 150 | EAR99 | MALAYSIA | Check Availability | Buy now | |
| L6474PDTR |
Active
|
1000 | 2.53 | PowerSO 36 | Tape And Reel | -40 | 150 | EAR99 | ITALY | Check Availability | Get sample | |
| L6474HTR |
Active
|
1000 | 2.221 | HTSSOP28 | Tape And Reel | -40 | 150 | EAR99 | MALAYSIA | Check Availability | Get sample | |
| L6474PD |
Active
|
1000 | 2.53 | PowerSO 36 | Tube | -40 | 150 | EAR99 | ITALY | Check Availability | Buy now | |
(*) 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
精选 视频
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-IHM01A1 ST Stepper motor driver expansion board based on L6474 for STM32 Nucleo 型号Stepper motor driver expansion board based on L6474 for STM32 Nucleo
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软件
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Picture Part number 制造商 Description 
X-CUBE-SPN1 ST Stepper motor driver software expansion for STM32Cube 型号Stepper motor driver software expansion for STM32Cube
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评估工具
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Picture Part number 制造商 Description 
EVAL6474H -- Stepper motor driver mounting the L6474 
STEVAL-3DP001V1 ST Evaluation board for 3D printer 型号Stepper motor driver mounting the L6474
Evaluation board for 3D printer
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| 型号 | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L6474H |
Active
|
HTSSOP28 | 工业 | Ecopack2 | |
| L6474HTR |
Active
|
HTSSOP28 | 工业 | Ecopack2 | |
| L6474PD |
Active
|
PowerSO 36 | 工业 | Ecopack1 (*) | |
| L6474PDTR |
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.
