제품 상세 정보

Number of full bridges 2 Vs (min) (V) 4.5 Vs ABS (max) (V) 50 Full-scale current (A) 2.5 Peak output current (A) 4 RDS(ON) (HS + LS) (mΩ) 330 Sleep current (µA) 2 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 256 Features Current Regulation, Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
Number of full bridges 2 Vs (min) (V) 4.5 Vs ABS (max) (V) 50 Full-scale current (A) 2.5 Peak output current (A) 4 RDS(ON) (HS + LS) (mΩ) 330 Sleep current (µA) 2 Control mode STEP/DIR Control interface Hardware (GPIO) Microstepping levels 256 Features Current Regulation, Integrated Current Sensing, Smart Tune Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4 VQFN (RGE) 24 16 mm² 4 x 4
  • PWM Microstepping Stepper Motor Driver
    • Simple STEP/DIR Interface
    • Up to 1/256 Microstepping Indexer
  • Integrated Current Sense Functionality
    • No Sense Resistors Required
    • ±4% Full-Scale Current Accuracy
  • Smart tune, slow, and mixed decay options
  • 4.5 to 48-V Operating Supply Voltage Range
  • Low RDS(ON): 330 mΩ HS + LS at 24 V, 25°C
  • High Current Capacity: 2.5 A Full-Scale, 1.8 A rms
  • Pin to pin compatible with -

  • Configurable Off-Time PWM Chopping
    • 7-µs, 16-µs, 24-µs, or 32-µs
  • Supports 1.8 V, 3.3 V, 5.0 V Logic Inputs
  • Low-Current Sleep Mode (2 µA)
  • Spread spectrum clocking for low EMI
  • Small Package and Footprint

  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Open Load Detection (OL)
    • Thermal Shutdown (OTSD)
    • Fault Condition Output (nFAULT)
  • PWM Microstepping Stepper Motor Driver
    • Simple STEP/DIR Interface
    • Up to 1/256 Microstepping Indexer
  • Integrated Current Sense Functionality
    • No Sense Resistors Required
    • ±4% Full-Scale Current Accuracy
  • Smart tune, slow, and mixed decay options
  • 4.5 to 48-V Operating Supply Voltage Range
  • Low RDS(ON): 330 mΩ HS + LS at 24 V, 25°C
  • High Current Capacity: 2.5 A Full-Scale, 1.8 A rms
  • Pin to pin compatible with -

  • Configurable Off-Time PWM Chopping
    • 7-µs, 16-µs, 24-µs, or 32-µs
  • Supports 1.8 V, 3.3 V, 5.0 V Logic Inputs
  • Low-Current Sleep Mode (2 µA)
  • Spread spectrum clocking for low EMI
  • Small Package and Footprint

  • Protection Features
    • VM Undervoltage Lockout (UVLO)
    • Charge Pump Undervoltage (CPUV)
    • Overcurrent Protection (OCP)
    • Open Load Detection (OL)
    • Thermal Shutdown (OTSD)
    • Fault Condition Output (nFAULT)

The DRV8434 is a stepper motor driver for industrial and consumer applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8434 is capable of driving up to 2.5-A full-scale output current (dependent on PCB design).

The DRV8434 uses an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The device uses an internal PWM current regulation scheme selectable between smart tune, slow and mixed decay options. Smart tune automatically adjusts for optimal current regulation, compensates for motor variation and aging effects and reduces audible noise from the motor.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in full-step to 1/256 microstepping. A low-power sleep mode is provided using a dedicated nSLEEP pin. Protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, open load, and overtemperature. Fault conditions are indicated by the nFAULT pin.

The DRV8434 is a stepper motor driver for industrial and consumer applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8434 is capable of driving up to 2.5-A full-scale output current (dependent on PCB design).

The DRV8434 uses an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The device uses an internal PWM current regulation scheme selectable between smart tune, slow and mixed decay options. Smart tune automatically adjusts for optimal current regulation, compensates for motor variation and aging effects and reduces audible noise from the motor.

A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in full-step to 1/256 microstepping. A low-power sleep mode is provided using a dedicated nSLEEP pin. Protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, open load, and overtemperature. Fault conditions are indicated by the nFAULT pin.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
DRV8424 활성 통합 전류 감지 및 1/256 마이크로스테핑을 지원하는 35V, 2.5A 양극 스테퍼 드라이버 33V, 2.5A bipolar stepper motor driver with integrated current sensing & 1/256 microstepping
DRV8434A 활성 48V, 2.5A 양극 스테퍼 모터 드라이버, 통합 전류 감지 및 스톨 감지(GPIO) 48V, 2.5A bipolar stepper motor driver, integrated current sensing & stall detection over Analog interface
DRV8434S 활성 48V, 2.5A 양극 스테퍼 모터 드라이버, 통합 전류 감지 및 스톨 감지(SPI) 48V, 2.5A bipolar stepper motor driver with integrated current sensing
DRV8436 활성 통합 전류 감지 및 1/256 마이크로스테핑을 지원하는 48V 1.5A 양극 스테퍼 모터 드라이버 48V, 1.5A bipolar stepper motor driver with integrated current sensing & 1/256 microstepping

기술 문서

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모두 보기13
유형 직함 날짜
* Data sheet DRV8434 Stepper Driver With Integrated Current Sense, 1/256 Microstepping, STEP/DIR Interface and smart tune Technology datasheet (Rev. A) PDF | HTML 2021/04/27
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 2022/06/20
Application note How to Drive Unipolar Stepper Motor with the DRV8xxx PDF | HTML 2021/12/03
Application note How to Improve Motion Smoothness and Accuracy of Stepper Motors (Rev. A) PDF | HTML 2021/10/11
Application note Intelligent Stepper Motor Driver (Rev. B) PDF | HTML 2021/01/20
Application note Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 2021/01/19
Certificate DRV8434EVM EU RoHS Declaration of Conformity (DoC) 2021/01/18
Technical article 4 key questions about motor design challenges PDF | HTML 2020/11/30
Application note How to Reduce Audible Noise in Stepper Motors PDF | HTML 2020/04/21
White paper How smart tune regulates current in stepper motors (Rev. A) 2019/03/19
Application brief Smart Tuning for Efficient Stepper Driving 2018/11/20
Application note PowerPAD™ Thermally Enhanced Package (Rev. H) 2018/07/06
Application brief PowerPAD™ Made Easy (Rev. B) 2004/05/12

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

DRV8434EVM — DRV8434 STEP/DIR 제어 인터페이스 스테퍼 모터 드라이버 보드

DRV8434 평가 모듈(EVM)을 사용하면 DRV8434 장치를 쉽게 평가할 수 있습니다.

DRV8434 장치는 양극 스테퍼 모터용 통합 모터를 위한 드라이버 솔루션입니다. 이 장치에는 2개의 N채널 전력 MOSFET H 브릿지, 통합 전류 감지 및 조정 회로, 마이크로스테핑 인덱서가 통합되어 있습니다. DRV8434 장치는 4.5~48V의 공급 전압으로 전력을 공급받을 수 있습니다. 간단한 STEP/DIR 제어 인터페이스를 통해 외부 컨트롤러가 출력을 관리할 수 있습니다. 감쇠 모드는 저속, 혼합 감쇠, 스마트 튜닝 리플 제어 (...)

사용 설명서: PDF
TI.com에서 구매할 수 없습니다
패키지 다운로드
HTSSOP (PWP) 28 옵션 보기
VQFN (RGE) 24 옵션 보기

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.

지원 및 교육

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