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MCT8315A1VRGFR中文资料德州仪器数据手册PDF规格书

MCT8315A1VRGFR
厂商型号

MCT8315A1VRGFR

功能描述

MCT8315A High Speed Sensorless Trapezoidal Control Integrated FET BLDC Driver

丝印标识

MCT8315A1V

封装外壳

VQFN

文件大小

4.17081 Mbytes

页面数量

166

生产厂商 Texas Instruments
企业简称

TI德州仪器

中文名称

美国德州仪器公司官网

原厂标识
数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-6-25 14:38:00

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MCT8315A1VRGFR规格书详情

1 Features

• 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 I2C 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

– RDS(ON) (HS + LS) at TA = 25°C : 240-mΩ (typ.)

• Low power sleep mode

– 5-μA (maximum) at VVM = 24-V, TA = 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 I2C interface

2 Applications

• Brushless-DC (BLDC) Motor Modules

• Robotic Vacuum Suction Motors

• Motor Cycle Fuel Pumps

• Appliance Fans and Pumps

• Automotive Fan and Blowers

• CPAP Machines

3 Description

The MCT8315A provides a single-chip, codefree

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 RDS(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 nonvolatile

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 I2C instruction. There are a large

number of protection features integrated into the

MCT8315A to protect the device, motor, and system

against fault events.

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