Motor Drivers, Stepper | AMIS-30543

微步进电机驱动器

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AMIS30543 是一款用于双极步进电机的微步进电机驱动器。该芯片通过 IO 引脚和 SPI 接口与外部微处理器进行联接。它具有片上稳压器、重置输出和监督重置，能够为外部器件供电。AMIS30543 包含一个电流转换表，根据 NXT 输入引脚上的时钟信号以及 DIR（方向）寄存器或输入引脚的状态采用下一个微步进。该芯片提供了一个速度和负载角度输出。因此可以基于负载角度产生失速检测算法和控制回路，来调节转矩和速度。它使用专属的 PWM 算法实现可靠的电流控制。AMIS30543 在 I2T100 工艺中实施，在同一个芯片上可以同时实现模拟电路和数字功能。该芯片可完全兼容汽车电压要求。

  • CNC equipment

  • Industrial manufacturing equipment
  • Textile equipment

  • Programmable peak current up to 3A
  • 128 micro steps
  • Speed and load angle output
  • Programmable PWM voltage slopes
  • Active flyback diodes
  • Integrated power and watchdog support for an external MCU

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VM Max (V)

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Reference Price

AMIS30543C5431RG

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Pb

A

H

P

QFN-32

485J

3

260

REEL

2500

N

6

40

4.5

5.5

3

3

1/128

SPI

Fully Integrated

Thermal

Price N/A

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可靠性数据

Die Related Summary Data

Device: AMIS30543C5431RG

Equivalent to wafer fab process: CMOS SUB

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

CMOS SUB

2

920154574

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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