Product overview
描述
The L6470 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 unique control system, a true 1/128 steps resolution is achieved. The digital control core can generate user defined motion profiles with acceleration, deceleration, speed or target position, easily programmed through a dedicated registers set. All commands and data registers, including those used to set analogue values (i.e. current control value, current protection trip point, deadtime, PWM frequency, etc.) are sent through a standard 5-Mbit/s SPI. A very rich set of protections (thermal, low bus voltage, overcurrent, motor stall) allows the design of a fully protected application, as required by the most demanding motor control applications.
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All features
- Operating voltage: 8 - 45 V
- 7.0 A out peak current (3.0 A r.m.s.)
- Low RDS(on)Power MOSFETs
- Programmable speed profile and positioning
- Programmable power MOS slew rate
- Up to 1/128 microstepping
- Sensorless stall detection
- SPI interface
- Low quiescent and standby currents
- Programmable non-dissipative overcurrent protection on high and low-side
- Two-levels of overtemperature protection
电路原理图
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STMicroelectronics - L6470
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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** |
|---|---|---|---|---|---|---|---|
| L6470H | Active 产品已量产 | HTSSOP28 | Industrial | Ecopack2 | 15 | 2026-01-01T00:00:00.000+01:00 | |
| L6470HTR | Active 产品已量产 | HTSSOP28 | Industrial | Ecopack2 | 15 | 2026-01-01T00:00:00.000+01:00 | |
| L6470PD | Active 产品已量产 | PowerSO 36 | Industrial | Ecopack1 | 15 | 2026-01-01T00:00:00.000+01:00 | |
| L6470PDTR | Active 产品已量产 | PowerSO 36 | Industrial | Ecopack1 | 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 | |||||||||||||
| L6470HTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L6470PDTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L6470PD | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L6470H | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
L6470HTR Active
L6470PDTR Active
L6470PD Active
L6470H Active