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The MCT8314Z0HRRWR is a single-chip brushless DC (BLDC) motor driver launched by Texas Instruments, supporting Hall sensor trapezoidal commutation control. It is suitable for 12V to 24V brushed DC motors. The MCT8314Z0HRRWR features the following core characteristics:

Three-phase BLDC motor driver, integrated trapezoidal control with sensor

Trapezoidal (120°) reversing based on Hall sensors

Supports analog or digital Hall input

Synchronous/asynchronous PWM modulation

Cycle-by-cycle current limit, which can limit phase current

Supports PWM frequencies up to 100 kHz

Automatic synchronous rectification reduces power loss

Low MOSFET on-resistance: At TA = 25°C, RDS(ON) is 575mΩ (high side + low side)

Low-power sleep mode: The current consumption is 1.5µA when VVM = 24V and TA = 25°C

Operating voltage range: 5V to 35V

Peak output current processing capacity: 1.5A

Built-in 5V (5%), 30mA LDO voltage regulator

Integrated current limiting function, no need for external current sensing resistors

Supports 1.8V, 3.3V and 5V logic inputs

Integrated protection function

Under-voltage power Lock (UVLO

Charge pump undervoltage (CPUV

Overcurrent Protection (OCP

Motor locking protection

Fault status indication pin (nFAULT

Fault diagnosis can be selected via SPI

Overview

The MCT8314Z0HRRWR offers a single-chip no-code sensor-equipped trapezoidal commutation device for customers who need to drive 12V to 24V brushed DC motors. The MCT8314Z0HRRWR integrates three 1/2 H Bridges, featuring an absolute maximum voltage of 40V and a low RDS(ON) of 575mΩ (a combination of high and low sides), providing high-power driving capabilities. The integrated current limiting function can limit the motor current under start-up or high-load conditions without the need for external detection resistors. The integrated 5V LDO can generate the necessary voltage rails for the device and power the external circuits.

The MCT8314Z0HRRWR can achieve sensor-equipped trapezoidal control in a fixed-function state machine, thus enabling brushless DC motors to rotate without an external microcontroller. The MCT8314Z0HRRWR device integrates three analog Hall comparators for position detection, enabling control of sensor-equipped trapezoidal BLDC motors. This control scheme is highly configurable and can be configured through hardware pins or register Settings, covering a range from motor current limiting behavior to fault response. The speed can be controlled through PWM input.

The MCT8314Z0HRRWR integrates multiple protection features to safeguard the device, motor and system in the event of a fault event.

Application scenarios

BLDC motor module

Small household appliances

Office automation equipment

Factory automation and robots

HVAC motor

The performance parameters of MCT8314Z0HRRWR are as follows:

Motor type - Stepper: Multiphase

Motor type - AC, DC: Brushless DC (BLDC)

Function: Driver - fully integrated, control and power stage

Output configuration: Half bridge (3

Interfaces: PWM, SPI

Technology: Power MOSFET

Step resolution: -

Application: General

Current - Output: 1.5A

Voltage - Power supply: 5V to 35V

Voltage - Load: 5V to 35V

Operating temperature: -40°C to 125°C (TA)

Installation type: Surface mount type

Package/Housing: 24-WQFN (3x3)

If you need to obtain the MCT8314Z0HRRWR product, you can contact Mingjiada Electronics through the following methods:

Official website: www.hkmjd.com

Service Hotline: +86 13410018555 (Mr. Chen)

Email: sales@hkmjd.com