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MCF8316D Sensorless Field Oriented Control (FOC) Integrated FET BLDC Driver

1 Features

•Functional Safety Quality-Managed Targeted (only

MCF8316DULVRGFR)

–Documentation available to aid IEC-60730-1

functional safety system design

•Safety-Related Certifications (only

MCF8316DULVRGFR)

–UL recognized component: UL 60730-1 (File

Number: E546206)

•Safety functions (only MCF8316DULVRGFR)

–Locked rotor protection

–Over current (over load) protection

–Loss of phase (no motor)

•Three-phase BLDC motor driver with integrated

sensorless motor control algorithm

–Code-free Field Oriented Control (FOC)

–Speed, current, power, or voltage control

–Forward and reverse windmilling support

–Configurable power and speed limit

–Lead angle adjustment for high efficiency

–Improved acoustic performance with soft-start,

soft-stop and dead time compensation

–Offline motor parameter measurement (MPET)

–Analog, PWM, frequency, or I

2

C speed input

–Configurable motor start-up and stop options

–Flux weakening for high-speed operation

–Anti-voltage surge (AVS) protection

•4.5 to 35V operating voltage (40V abs max)

•High output current capability: 8A peak

•Low MOSFET on-state resistance

–R

DS(ON)

(HS + LS) at T

A

= 25°C : 95mΩ (typ.)

•Low power sleep mode: Refer Table 7-8

–5µA (maximum) at V

VM

= 24V, T

A

= 25°C

•Speed loop accuracy: 3% with internal clock and

1% with external clock reference

•Configurable EEPROM with R/W security to store

device configuration

•Built-in current sensing

•Built-in 3.3V/5V, 170mA buck regulator

•Built-in 3.3V, 20mA LDO regulator

•Dedicated DRVOFF pin to disable (Hi-Z) outputs

•Spread spectrum, PWM dithering, and slew rate

for EMI reduction

•Suite of integrated protection features

–Supply under voltage lockout (UVLO)

–Supply over voltage protection (OVP)

–Motor lock detection

–Configurable current limit

–Thermal warning and shutdown (OTW/TSD)

–Fault condition indication pin (nFAULT)

–Optional fault diagnostics over I

2

C interface

2 Applications

•Brushless-DC (BLDC) Motor Modules

•Washer and Dishwashers Pumps

•Air Purifiers and Humidifier Fans

•Residential and Living Fans

•Projector Color Wheels

3 Description

The MCF8316D provides a single-chip, code-free

sensorless FOC device for driving 12 to 24V

brushless-DC motors (BLDC) or Permanent Magnet

Synchronous motor (PMSM) up to 8A peak current.

The MCF8316D integrates three ½-bridges with 40V

absolute maximum capability and a very low R

DS(ON)

of 95mΩ (HS+LS FETs). MCF8316D integrates a

buck regulator (3.3V/5V, 170mA) and LDO (3.3V,

20mA) that can be used to power external circuits.

The FOC algorithm configuration can be stored

in non-volatile EEPROM, which allows the device

to operate stand-alone once the device has been

configured. The device receives a speed command

through a PWM input, analog voltage, variable

frequency square wave or I

2

C command. There are

a large number of protection features integrated into

the MCF8316D, intended to protect the device, motor,

and system against fault events.

Device Information

(1)

PART NUMBERPACKAGEBODY SIZE (NOM)

2

MCF8316DVRGFRVQFN (40)7.00mm x 5.00mm

MCF8316DULVRGFRVQFN (40)7.00mm x 5.00mm

(1)For all available packages, see the orderable addendum at

the end of the data sheet.

(2)The package size (length × width) is a nominal value and

includes pins, where applicable

Documentation for reference:

•Refer MCF8316D EVM User's Guide

•Refer to the MCF8316D EVM GUI

MCF8316D

MOSFETs

Buck/LDO Regulator

Integrated Current Sensing

EEPROM

Sensorless

FOC

DIRECTION

BRAKE

I

2

C

Op



onal during opera



on;

I

2

C speed, diagnos



cs, or

on-the-



y con



gura



on

PWM, analog, frequency or

commanded over I

2

C

SPEED

FG

Speed feecback

nFAULT

A

B

C

4.5 to 35-V (40-V abs max)

8-A peak output current,

typically 12 to 24-V

Buck out

3.3 or 5.0-V, up to 170-mA

LDO out

3.3-V, up to 20-mA

Simplified Schematic

MCF8316D

SLLSFX9A – DECEMBER 2024 – REVISED MAY 2025

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Produktspecifikationer