Texas Instruments MCF8329HS-Q1 Handleiding

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MCF8329HS-Q1 Automotive Sensorless Field Oriented Control (FOC) Three-Phase

BLDC Gate Driver

1 Features

•AEC-Q100 qualified for automotive applications

–Temperature Grade-1 : –40°C ≤ T

A

≤ 125°C

•Three-phase BLDC gate driver with integrated

sensorless motor control algorithm

–Code-free Field Oriented Control (FOC)

–Supports up to 2.5kHz (electrical frequency)

–Speed, current, power or voltage control modes

–Forward and reverse windmilling support

–Configurable power and speed limit

–Analog, PWM, freq. or I

2

C based control input

–Configurable dry run detection for pumps

–External MCU watchdog monitoring with limp

home mode and reset signal

–Optional 1-Hall input support

–5-point configurable reference profile support

–Anti-voltage surge and active braking to prevent

DC bus overvoltage

–Flux weakening for high speed operation

–Maximum torque per ampere (MTPA) for higher

efficiency

•65V Three phase half-bridge gate driver

–Drives 3 high-side and 3 low-side N-channel

MOSFETs, 4.5 to 60V operating voltage

–Supports 100% PWM duty cycle

–Bootstrap based gate driver architecture

–1A/2A peak source/sink current

•Integrated current sense amplifier

–Adjustable gain (5, 10, 20, 40V/V)

•Low power sleep mode

–5µA (maximum) at V

PVDD

= 24V, T

A

= 25°C

•Speed loop accuracy: < 3% with internal clock

•Configurable EEPROM with R/W security

•Support up to 80kHz PWM switching frequency

•Configurable LDO: (3.3V or 5V) ± 3%, 50mA

•Independent driver shutdown path (DRVOFF)

•Spread spectrum and PWM dithering for EMI

mitigation

•Suite of integrated protection features

–Undervoltage protection on all supply rails

–Loss of phase (no motor) detection including

lost phase(s) information

–Short-circuit protection (VDS) for all 6 FETs

–Motor lock detection

–Thermal shutdown (TSD)

–Fault indication on nFAULT or FG pin

–Optional fault diagnostics over I

2

C interface

2 Applications

•Coolant and water pumps

•Fuel and oil pumps

•HVAC blowers

•Engine and battery cooling fans

•Sunroof modules, Wiper modules

•Zonal modules

3 Description

The MCF8329HS-Q1 provides a single-chip, code-

free sensorless FOC solution for driving 12V or

24V automotive brushless-DC motors (BLDC) or

Permanent Magnet Synchronous motors (PMSM) up

to 2.5kHz (electrical speed). The MCF8329HS-Q1

provide three half-bridge gate drivers, each capable

of driving high-side and low-side N-channel power

MOSFETs. A trickle charge pump is included to

support 100% duty cycle. The MCF8329HS-Q1 can

operate from a single power supply.

The algorithm configuration can be stored in non-

volatile EEPROM, which allows the device to operate

stand-alone once it has been configured. There are

a large number of protection features integrated into

the MCF8329HS-Q1, intended to protect the device,

motor, and system against fault events.

MCF8329HS-Q1 is available in a 32-pin, 0.5mm pin

pitch, 6x4mm, wettable flank WQFN package (RRY).

Device Information

(1)

PART NUMBERPACKAGEBODY SIZE (NOM)

MCF8329HSIQRRYRQ1WQFN (32)6.00mm × 4.00mm

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

the end of the data sheet.

Documentation for reference:

•Refer MCF8329HS-Q1 EVM

•Refer MCF8329HS-Q1 GUI (MOTORSTUDIO)

MCF8329HS-Q1

3-Phase Pre-Driver

LDO Regulator

Integrated Current

Sense Ampli



er

EXT_WD (op



onal)

I

2

C

Op



onal during opera



on;

I

2

C speed, diagnos



cs, or

on-the-



y con



gura



on

Analog, PWM, frequency or

commanded over I

2

C

SPEED

FG

Speed feedback

nFAULT

A

B

C

4.5 to 60V

LDO out

3.3V or 5V, up to 50mA

Bootstrap Architecture

Charge pump

N-Channel

MOSFETs

Gate Drive

Current

sense

EEPROM

Sensorless

FOC

1-Hall (op



onal)

Simplified Schematic

MCF8329HS-Q1

SLLSFZ8 – NOVEMBER 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.

Product specificaties