产品概要
描述
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.
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性能一览
- 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
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STMicroelectronics - L6474
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| L6474H | Active 产品已量产 | HTSSOP28 | Industrial | Ecopack2 | 15 | 2026-01-01T00:00:00.000+01:00 | |
| L6474HTR | Active 产品已量产 | HTSSOP28 | Industrial | Ecopack2 | 15 | 2026-01-01T00:00:00.000+01:00 | |
| L6474PD | Active 产品已量产 | PowerSO 36 | Industrial | Ecopack2 | 15 | 2026-01-01T00:00:00.000+01:00 | |
| L6474PDTR | Active 产品已量产 | PowerSO 36 | Industrial | Ecopack2 | 15 | 2026-01-01T00:00:00.000+01:00 |
(**) 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。
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Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| L6474H | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L6474PDTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L6474HTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L6474PD | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
L6474H Active
L6474PDTR Active
L6474HTR Active
L6474PD Active