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The L6472 device, 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 new current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations. The digital control core can generate user defined motion profiles with acceleration, deceleration, speed or target position, easily programmed through a dedicated register set.
All application commands and data registers, including those used to set analog 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 L6472 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 A r.m.s.)
- Low RDS(on)power MOSFETs
- Programmable speed profile
- Programmable power MOSFET slew rate
- Up to 1/16 microstepping
- Predictive current control with adaptive decay
- Non dissipative current sensing
- SPI interface
- Low quiescent and standby currents
- Programmable non dissipative overcurrent protection on all power MOSFETs
- Two levels of overtemperature protection
电路原理图
All tools & software
All resources
产品规格 (1)
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| 27 Mar 2015 |
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应用手册 (3)
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用户手册 (3)
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| 27 Apr 2015 |
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| 20 Mar 2017 |
20 Mar 2017
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Design Notes & Tips (3)
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| 14 Oct 2020 |
14 Oct 2020
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工具/软件相关的应用笔记 (5 of 6)
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简报 (4)
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宣传册 (1)
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| 12 Apr 2016 |
12 Apr 2016
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选型指南 (2)
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| 24 Jan 2020 |
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手册 (2)
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Magazine Articles (1)
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CAD/EDA Symbols, Footprints and Models
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L6472H |
批量生产
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HTSSOP28 | 工业 | Ecopack2 | |
| L6472HTR |
批量生产
|
HTSSOP28 | 工业 | Ecopack2 | |
| L6472PD |
批量生产
|
PowerSO 36 | 工业 | Ecopack2 | |
| L6472PDTR |
批量生产
|
PowerSO 36 | 工业 | Ecopack2 |
(**) 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 。
样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| L6472HTR | 5 distributors | Free Sample Buy Direct |
批量生产
|
EAR99 | NEC | Tape And Reel | HTSSOP28 | -40 | 150 | PHILIPPINES | 2.671 / 1k | |
| L6472PD | 9 distributors | Buy Direct |
批量生产
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EAR99 | NEC | Tube | PowerSO 36 | -40 | 150 | MALAYSIA | 3.093 / 1k | |
| L6472PDTR | 6 distributors | Free Sample Buy Direct |
批量生产
|
EAR99 | NEC | Tape And Reel | PowerSO 36 | -40 | 150 | MALAYSIA | 3.093 / 1k | |
| L6472H | 3 distributors | Buy Direct |
批量生产
|
EAR99 | NEC | Tube | HTSSOP28 | -40 | 150 | PHILIPPINES | 2.671 / 1k | |
