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1 Features

? AEC-Q100 qualified for automotive applications

– Temperature Grade-1 : –40°C ≤ TA ≤ 125°C

? Three-phase BLDC motor driver with integrated

sensorless motor control algorithm

– Code-free Field Oriented Control (FOC)

– Offline motor parameters measurement with

Motor Parameter Extraction Tool (MPET)

– 5-point configurable speed profile support

– Windmilling support through forward

resynchronization and reverse drive

– Analog, PWM, freq. or I2C based speed input

– Configurable motor start-up and stop options

– Anti-voltage surge (AVS) protection

– Improved acoustic performance with soft-start,

soft-stop and dead time compensation

– Variable monitoring through DACOUT pins

? 4.5- to 35-V operating voltage (40-V abs max)

? High output current capability: 8-A peak

? Low MOSFET on-state resistance

– RDS(ON) (HS + LS) at TA = 25°C : 95-mΩ (typ.)

? Low power sleep mode: Refer Table 7-7

– 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 60-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

? Automotive Fan and Blowers

? Brushless-DC (BLDC) Motor Modules

? Residential and Living Fans

? Air Purifiers and Humidifier Fans

? Washer and Dishwashers Pumps

? CPAP Machines

3 Description

The MCF8316C-Q1 provides a single-chip, code-free

sensorless FOC device for customers driving speedcontrolled

12- to 24-V brushless-DC motors (BLDC) or

Permanent Magnet Synchronous motor (PMSM) up to

8-A peak current. The MCF8316C-Q1 integrates three

?-bridges with 40-V absolute maximum capability and

a very low RDS(ON) of 95 mΩ (high-side + low-side

FETs). MCF8316C-Q1 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.

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 I2C command. There are a

large number of protection features integrated into the

MCF8316C-Q1, intended to protect the device, motor,

and system against fault events.