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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
| 产品型号 | 供货状态 | 数量 | 预算价格(US$) | 封装 | 包装类型 | 温度（ºC） | ECCN (US) | Country of Origin | 更多信息 | 从分销商订购 | 从ST订购 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L6474H | 批量生产 | 1000 | 2.221 | HTSSOP28 | Tube | -40 | 150 | EAR99 | MALAYSIA | 查看供货情况 | 立即购买 | |
| L6474PDTR | 批量生产 | 1000 | 2.53 | PowerSO 36 | Tape And Reel | -40 | 150 | EAR99 | ITALY | 查看供货情况 | 获取样片 | |
| L6474HTR | 批量生产 | 1000 | 2.221 | HTSSOP28 | Tape And Reel | -40 | 150 | EAR99 | MALAYSIA | 查看供货情况 | 立即购买 | |
| L6474PD | 批量生产 | 1000 | 2.53 | PowerSO 36 | Tube | -40 | 150 | EAR99 | MALAYSIA | 查看供货情况 | 立即购买 | |
精选 视频
开发工具硬件
生态系统
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Picture 产品型号 制造商 描述 
X-NUCLEO-IHM01A1 ST Stepper motor driver expansion board based on L6474 for STM32 Nucleo 产品型号Stepper motor driver expansion board based on L6474 for STM32 Nucleo
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软件
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Picture 产品型号 制造商 描述 
X-CUBE-SPN1 ST Stepper motor driver software expansion for STM32Cube 产品型号Stepper motor driver software expansion for STM32Cube
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评估工具
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Picture 产品型号 制造商 描述 
EVAL6474H -- Stepper motor driver mounting the L6474 
STEVAL-3DP001V1 ST Evaluation board for 3D printer 产品型号Stepper motor driver mounting the L6474
Evaluation board for 3D printer
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| 产品型号 | 供货状态 | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L6474H | 批量生产 | HTSSOP28 | Industrial | Ecopack2 | |
| L6474HTR | 批量生产 | HTSSOP28 | Industrial | Ecopack2 | |
| L6474PD | 批量生产 | PowerSO 36 | Industrial | Ecopack2 (**) | |
| L6474PDTR | 批量生产 | PowerSO 36 | Industrial | Ecopack1 (*) |
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
