MCT8315A
- Three-phase BLDC motor driver with integrated sensorless motor control algorithm
- Code-free high speed Trapezoidal Control
- Supports up to 3 kHz (electrical frequency)
- Very fast start-up time (< 50 ms)
- Fast Deceleration (< 150 ms)
- Supports 120° or 150° modulation to improve acoustic performance
- Windmilling support through forward resynchronization and reverse drive
- Analog, PWM, freq. or I 2C based speed input
- Active Demagnetization to reduce power losses
- Configurable motor start-up and stop options
- Closed speed/power loop options
- Anti-voltage surge (AVS) protection prevents DC bus voltage spike during motor deceleration
- 4.5- to 35-V operating voltage (40-V abs max)
- High output current capability: 4-A peak
- Low MOSFET on-state resistance
- R DS(ON) (HS + LS) at T A = 25°C : 240-mΩ (typ.)
- Low power sleep mode
- 5-µA (maximum) at V VM = 24-V, T A = 25°C
- Speed loop accuracy: 3% with internal clock and 1% with external clock reference
- Customer-configurable non-volatile memory (EEPROM) to store device configuration
- Supports up to 100-kHz PWM frequency for low inductance motor support
- Does not require external current sense resistors; uses built-in current sensing
- Built-in 3.3-V, 20-mA LDO regulator
- Built-in 3.3-V/5-V, 170-mA buck regulator
- Dedicated DRVOFF pin to disable (Hi-Z) outputs
- Spread spectrum and slew rate for EMI mitigation
- Suite of integrated protection features
- Supply under voltage lockout (UVLO)
- Supply over voltage protection (OVP)
- Motor lock detection (5 different types)
- Over current protection (OCP)
- Thermal warning and shutdown (OTW/TSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over I 2C interface
The MCT8315A provides a single-chip, code-free sensorless trapezoidal solution for customers requiring high speed operation (up to 3 kHz electrical) or very fast start-up time (< 50 ms) for 12- to 24-V brushless-DC motors requiring up to 4-A peak current. The MCT8315A integrates three ½-bridges with 40-V absolute maximum capability and a low R DS(ON) of 240 mΩ (high-side + low-side FETs). MCT8315A integrates power management circuits including an voltage-adjustable buck regulator (3.3 V / 5 V, 170-mA) and LDO (3.3 V, 20 mA) that can be used to power external circuits.
Sensorless trapezoidal control is highly configurable (motor start-up/stop behavior, fault handling, closed loop operation) through register settings in a non-volatile EEPROM, which allows the device to operate stand-alone once it has been configured. The MCT8315A receives a speed command through a PWM signal, analog voltage, variable frequency square wave or I 2C instruction. There are a large number of protection features integrated into the MCT8315A to protect the device, motor, and system against fault events.
Documentation for reference:
- Refer MCT8315A tuning guide
- Refer to the MCT8315A EVM GUI
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | MCT8315A High Speed Sensorless Trapezoidal Control Integrated FET BLDC Driver datasheet (Rev. A) | PDF | HTML | 2023/04/14 |
User guide | MCT8315A Tuning Guide | PDF | HTML | 2023/01/04 | |
Certificate | MCT8315EVM EU RoHS Declaration of Conformity (DoC) | 2022/12/21 | ||
Technical article | How to achieve efficient, reliable and accurate actuation in real-time motor contr | PDF | HTML | 2022/10/25 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
MCT8315EVM — MCT8317 3상 무센서 사다리꼴 통합 MOSFET BLDC 모터 드라이버용 평가 모듈
MCT8315에는 4.5V~35V, 5A 피크 전류 드라이브를 위한 3상 BLDC(브러시리스 DC) 모터의 무센서 사다리꼴 제어를 위한 3개의 하프 H 브리지 통합 MOSFET 드라이버가 있습니다. MCT8315A는 프로그래밍 가능한 조정 전원에 200mA를 지원할 수 있는 벅 레귤레이터를 통합합니다.
이 EVM에는 MCT8315EVM GUI와 상호 작용하는 데 사용되는 온보드 MSP430, MSP430FR2355가 포함되어 있습니다.
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VQFN (RGF) | 40 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치