제품 상세 정보

Vs ABS (max) (V) 50 Vs (min) (V) 4.5 Peak output current (A) 4 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2.5 RDS(ON) (HS + LS) (mΩ) 330 Sleep current (µA) 2 Microstepping levels 256 Decay mode Smart Tune Features Current Regulation, Integrated Current Sensing, Smart Tune, Stall Detection Rating Automotive Operating temperature range (°C) -40 to 125
Vs ABS (max) (V) 50 Vs (min) (V) 4.5 Peak output current (A) 4 Control mode STEP/DIR Control interface Hardware (GPIO) Number of full bridges 2 Full-scale current (A) 2.5 RDS(ON) (HS + LS) (mΩ) 330 Sleep current (µA) 2 Microstepping levels 256 Decay mode Smart Tune Features Current Regulation, Integrated Current Sensing, Smart Tune, Stall Detection Rating Automotive Operating temperature range (°C) -40 to 125
VQFN (RGE) 24 16 mm² 4 x 4
  • AEC-Q100 Qualified for Automotive
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • 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 ripple control decay
  • Stall Detection using GPIO pins
  • 4.5 to 48V Operating Supply Voltage Range
  • Low RDS(ON): 330mΩ HS + LS at 24V, 25°C
  • High Current Capacity: 2.5A Full-Scale, 1.8A rms
  • Supports 1.8V, 3.3V, 5.0V 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)
    • Sensorless stall detection
    • Open Load Detection (OL)
    • Thermal Shutdown (OTSD)
    • Fault Condition Output (nFAULT)
  • AEC-Q100 Qualified for Automotive
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • 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 ripple control decay
  • Stall Detection using GPIO pins
  • 4.5 to 48V Operating Supply Voltage Range
  • Low RDS(ON): 330mΩ HS + LS at 24V, 25°C
  • High Current Capacity: 2.5A Full-Scale, 1.8A rms
  • Supports 1.8V, 3.3V, 5.0V 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)
    • Sensorless stall detection
    • Open Load Detection (OL)
    • Thermal Shutdown (OTSD)
    • Fault Condition Output (nFAULT)

The DRV8434-Q1 is a stepper motor driver for automotive applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8434-Q1 is capable of driving up to 2.5A full-scale output current (dependent on PCB thermal design).

The DRV8434-Q1 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 with smart tune ripple control decay. 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.

The DRV8434-Q1 features advanced stall detection algorithm configurable by two digital IO and one analog IO pins, and does not require an SPI interface to detect stall. By detecting motor stall, system designers can identify if the motor was obstructed and take action as needed which can improve efficiency, prevent damage and reduce audible noise. Other protection features include supply undervoltage, charge pump faults, overcurrent, short circuits, open load, and overtemperature. Fault conditions are indicated by the nFAULT pin.

The DRV8434-Q1 is a stepper motor driver for automotive applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8434-Q1 is capable of driving up to 2.5A full-scale output current (dependent on PCB thermal design).

The DRV8434-Q1 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 with smart tune ripple control decay. 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.

The DRV8434-Q1 features advanced stall detection algorithm configurable by two digital IO and one analog IO pins, and does not require an SPI interface to detect stall. By detecting motor stall, system designers can identify if the motor was obstructed and take action as needed which can improve efficiency, prevent damage and reduce audible noise. Other protection features include supply undervoltage, charge pump faults, overcurrent, short circuits, open load, and overtemperature. Fault conditions are indicated by the nFAULT pin.

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기술 자료

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* Data sheet DRV8434A-Q1 Automotive Stepper Driver With Integrated Current Sense, 1/256 Microstepping, smart tune and Stall Detection using GPIO pins datasheet PDF | HTML 2024/08/30
White paper 내일의 SDV 살펴보기: 원격 제어 에 지 노드 통합 PDF | HTML 2025/09/26

설계 및 개발

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

평가 보드

DRV8434AEVM — DRV8434A 아날로그 스톨 감지를 지원하는 스테퍼 드라이버 평가 모듈

DRV8434A 평가 모듈(EVM)을 사용하면 DRV8434A 장치를 쉽게 평가할 수 있습니다.

DRV8434A 장치는 양극 스테퍼 모터용 통합 모터를 위한 드라이버 솔루션입니다. 이 장치에는 2개의 N채널 전력 MOSFET H 브릿지, 통합 전류 감지 및 조정 회로, 아날로그 스톨 감지 기능 및 마이크로스테핑 인덱서가 통합되어 있습니다. DRV8434A 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, (...)

사용 설명서: PDF
TI.com에서 구매 불가
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN (RGE) 24 Ultra Librarian

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.

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