Motor Drivers, Stepper | AMIS-30522

步进电机驱动器，带综合诊断反馈和 SLA 输出

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概览

AMIS-30522 是一款微步步进电机驱动器，适用于双极步进电机。芯片通过 I/O 引脚和 SPI 接口与外部微控制器连接。它具有片上稳压器、重置输出和监控重置，能够为外围器件供电。AMIS-30522 包含一个电流转换表，根据 NXT 输入引脚上的时钟信号和 DIR（方向）寄存器或输入引脚的状态执行下一微步。该芯片提供速度和负载角度输出。因此可以基于负载角度创建失速检测算法和控制环路，以调整扭矩和速度。它采用专有 PWM 算法来实现可靠的电流控制。AMIS-30522 采用 I2T100 技术，在同一芯片上同时启用高压模拟电路和数字功能。该芯片可完全兼容汽车电压要求。AMIS-30522 非常适合汽车、工业、医疗和海洋环境中的通用步进电机应用。利用片上稳压器，它进一步减少了机械电子步进应用的 BOM。

  • Intelligent positioning and dynamic motion of surveillance cameras and spotlights
  • Dose pumps
  • Vending machines
  • Pick-and-place machines
  • Automotive headlight position
  • Dynamic motion of weaving and sewing equipment
  • Integrated 5V regulator
  • Integrated reset function
  • On-chip current translator
  • SPI interface
  • Speed and load angle output
  • Seven step modes from full step up to 32 micro-steps
  • Fully integrated current-sense
  • PWM current control with automatic selection of fast and slow decay
  • Low EMC PWM with selectable voltage slopes
  • Active fly-back diodes
  • Full output protection and diagnosis
  • Thermal warning and shutdown
  • Compatible with 5V and 3.3V microcontrollers
  • Dual H-Bridge for 2-phase stepper motors
  • Programmable peak-current up to 1.6A using a 5-bit current DAC
  • Integrated watchdog function
  • Flap/valve control in climate control facilities

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ON Target

VM Min (V)

VM Max (V)

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Reference Price

AMIS30522C5222RG

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Last Shipments

CAD Model

Pb

A

H

P

NQFP-32

560AA

3

260

REEL

2500

N

6

40

4.75

5.25

1.6

1.6

1/32

SPI

Fully Integrated

Thermal

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