产品概要
描述
The L6228 device is a DMOS fully integrated stepper motor driver with non-dissipative overcurrent protection, realized in BCD technology, which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. The device includes all the circuitry needed to drive a two phase bipolar stepper motor including: a dual DMOS full bridge, the constant off time PWM current controller that performs the chopping regulation and the phase sequence generator, that generates the stepping sequence. Available in PowerSO36 and SO24 (20 + 2 + 2) packages, the L6228 device features a non-dissipative overcurrent protection on the high-side power MOSFETs and thermal shutdown.
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性能一览
- Operating supply voltage from 8 to 52 V
- 2.8 A output peak current (1.4 A RMS)
- RDS(ON) 0.73 Ω typ. value at Tj = 25 °C
- Operating frequency up to 100 KHz
- Non-dissipative overcurrent protection
- Dual independent constant tOFF PWM current controllers
- Fast/slow decay mode selection
- Fast decay quasi-synchronous rectification
- Decoding logic for stepper motor full and half step drive
- Cross conduction protection
- Thermal shutdown
- Undervoltage lockout
- Integrated fast freewheeling diodes
电路原理图
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STMicroelectronics - L6228
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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** |
|---|---|---|---|---|---|---|---|
| L6228D | Active 产品已量产 | SO-24 | Industrial | Ecopack1 | 10 | 2026-01-01T00:00:00.000+01:00 | |
| L6228DTR | Active 产品已量产 | SO-24 | Industrial | Ecopack1 | 10 | 2026-01-01T00:00:00.000+01:00 | |
| L6228PD | Active 产品已量产 | PowerSO 36 | Industrial | Ecopack2 | 10 | 2026-01-01T00:00:00.000+01:00 | |
| L6228PDTR | Active 产品已量产 | PowerSO 36 | Industrial | Ecopack2 | 10 | 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 | |||||||||||||
| L6228PD | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L6228D | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L6228PDTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
| L6228DTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | |||||||||||
L6228PD Active
L6228D Active
L6228PDTR Active
L6228DTR Active