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APEK3981KLP-01-T
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APEK3981KLP-01-T

  • Category:Electric motor driver
  • Product Name:Automotive programmable stepper driver
  • Manufacturers:Allegro
  • Production Batch Number:15+
  • Encapsulation:28-lead TSSOP
  • Stock Status:There is stock
  • Stock Quantity:4650
  • Minimum order quantity: 1
  • Details:Nhấp vào Tìm hồ sơ pdf của APEK3981KLP-01-T
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  • Product introduction

A3981 là một chương trình có thể lập trìnhMicrostepping motor drivervới bộ chuyển đổi tích hợp, dễ vận hành. Nó sử dụng các giải pháp chip đơn có khả năng tiến bộ đầy đủ, nửa bước, một phần tư và một phần mười sáuLái động cơ đẩy hai cựcđiện áp hoạt động và dòng điện lên đến 28 V và ± 750 mA. A3981 có thể được điều khiển bằng cách sử dụng đầu vào bước và hướng đơn giản hoặc thông qua giao diện tương thích SPI, nhưng cũng có thể được sử dụng để thiết lập một loạt các chức năng hợp nhất và đọc thông tin chẩn đoán.

The current regulator can be programmed to operate with fixed downtime or fixed frequency PWM, and can reduce audible motor noise and improve step accuracy with multiple attenuation modes. Furthermore, phase ammeters can be programmed via a serial interface to establish the appropriate microstep current distribution for a specific application, further improving motor performance.

All phase currents of the motor are controlled by a DMOS full-bridge unit using synchronous rectification to reduce power dissipation. When switching between high-side drive and low-side drive, internal circuitry and timer prevent transconductance and breakdown,

This avoids output short circuits. In addition, it features low load current and stall rotor detection. Chip-level protection includes: high and low temperature warnings, overtemperature shutdown, overvoltage and undervoltage lockout.

apply

  • Automotive stepper motor
  • Engine management
  • Headlamp positioning
    • Typical applications ± 750 mA, 28 V
    • Low RDS (On)Output, typically 0.5 Ω source and sink
    • Automatic current decay mode detection/selection
    • Mixed, fast, and slow current attenuation modes
    • Synchronous rectification reduces power dissipation
    • Internal overvoltage lockout (OVLO), undervoltage lockout (UVLO), and thermal shutdown circuitry
    • Crossover current protection
    • Short-circuit and open-circuit diagnostics
    • High and low temperature warnings
    • Stall detection function
    • SPI-compatible or simple step and direction motion control
    • Improved configurability with SPI-compatible serial interface

andAPEK3981KLP-01-TRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
APEK3981KLP-01-T Allegro 15+ 28-lead TSSOP Automotive programmable stepper driver
A3981KLPTR-T Allegro 15+ 28-lead TSSOP Automotive programmable stepper driver
A3981KLP-T Allegro 15+ 28-lead TSSOP Automotive programmable stepper driver

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