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Drivers para motores de CC sin escobillas (BLDC)
Controladores BLDC de control integrado

MCT8315A

ACTIVO

Controlador de motor BLDC trifásico de 40 V máx., pico de 4 A y control trapezoidal sin sensor

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MCT8315A

ACTIVO
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Detalles del producto

Rating Catalog Architecture Integrated FET Control topology Sensorless, Trapezoidal Control interface 1xPWM, Analog, Serial Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Features 120 or 150 degree modulation for improved acoustic performance, Active Demag to reduce power losses, Code-free high speed sensorless trapezoidal control, Configurable motor startup and stop options, Fast Deceleration (<150 ms), Fast startup time (<50 ms), Integrated protections UVLO,OCP,OTW-OTSD,AVS, Optional closed loop speed control, Stand-alone operation, Up to 3 kHz (electrical frequency), Variable monitoring through DACOUT, Windmilling support through forward resynchronization and reverse drive Operating temperature range (°C) -40 to 125
Rating Catalog Architecture Integrated FET Control topology Sensorless, Trapezoidal Control interface 1xPWM, Analog, Serial Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Features 120 or 150 degree modulation for improved acoustic performance, Active Demag to reduce power losses, Code-free high speed sensorless trapezoidal control, Configurable motor startup and stop options, Fast Deceleration (<150 ms), Fast startup time (<50 ms), Integrated protections UVLO,OCP,OTW-OTSD,AVS, Optional closed loop speed control, Stand-alone operation, Up to 3 kHz (electrical frequency), Variable monitoring through DACOUT, Windmilling support through forward resynchronization and reverse drive Operating temperature range (°C) -40 to 125
VQFN (RGF) 40 35 mm² 7 x 5
  • 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
  • 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:

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:

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Documentación técnica

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* Data sheet MCT8315A High Speed Sensorless Trapezoidal Control Integrated FET BLDC Driver datasheet (Rev. A) PDF | HTML 14 abr 2023
User guide MCT8315A Tuning Guide PDF | HTML 04 ene 2023
Certificate MCT8315EVM EU RoHS Declaration of Conformity (DoC) 21 dic 2022
Technical article How to achieve efficient, reliable and accurate actuation in real-time motor contr PDF | HTML 25 oct 2022

Diseño y desarrollo

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Placa de evaluación

MCT8315EVM — Módulo de evaluación MCT8315 para controlador de motor BLDC trifásico MOSFET trapezoidal integrado s

El MCT8315 tiene tres controladores MOSFET integrados de medio puente H para el control trapezoidal sin sensor de un motor de CC sin escobillas (BLDC) trifásico para un accionamiento de corriente máxima de 4.5 V a 35 V y 5 A. El MCT8315A integra un regulador reductor que es compatible con 200 mA (...)

Guía del usuario: PDF | HTML
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GUI para el módulo de evaluación (EVM)

MCT8315A-GUI — GUI for MCT8315EVM

GUI used to evaluate MCT8315A on the MCT8315EVM
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores BLDC de control integrado
MCT8315A — Controlador de motor BLDC trifásico de 40 V máx., pico de 4 A y control trapezoidal sin sensor
Desarrollo de hardware
Evaluation board
MCT8315EVM — Módulo de evaluación MCT8315 para controlador de motor BLDC trifásico MOSFET trapezoidal integrado s
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  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
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