Features

•

Input voltage from 12 to 28 V DC (Nominally 21 V)

•

Output RMS current up to 20A

•

The board comprises the following key devices:

–

STM32G473CET6: A high-performance Arm®-based Cortex®-M4 32-bit

MCU+FPU in LQFP48 (7x7mm) package. The MCU embeds

trigonometric and arithmetic math accelerators (CORDIC + FMAC),

timers for motor control PWM and dead time generation

–

STDRIVE101: triple half-bridge gate driver in VFQFPN (4x4mm) with

inbuilt regulator

–

STL220N6F7: six N-channel 60 V, 0.0012 Ω typ., 120 A, STripFET F7

power MOSFET in a PowerFLAT 5x6 package

–

L6981NDR: 38 V, 1.5 A synchronous step-down converter in a

PowerSO-8 package

–

LDL112: 1.2 A low quiescent current LDO with reverse current protection

in a SO8-batwing package

–

TSV912IQ2T: dual rail to rail input/output 8MHz op amp

–

BAT54KFILM: 40 V, 300 mA small signal Schottky diodes (single)

–

BAT54SWFILM: 40 V, 300 mA small signal Schottky diodes (series)

–

2STR2160: low voltage fast switching PNP power transistor

–

2STR1160: low voltage fast switching NPN power transistor

–

2STR21STPS0560Z: 60 V, 0.25 A power Schottky rectifier

–

ESDALC6V1-1U2: single line low capacitance transilTM for ESD

protection is a precision 500 mA regulator

•

Hardware features enabling efficient motor control options

–

Independent ADCs for 3-phase current sensing through shunts

–

3 ADC channels for back EMF sensing

–

Bus voltage sensing

–

Hardware over current protection through gate drive

–

Option for temperature sensing

–

Option for digital hall sensors or encoder inputs

–

Option for mounting heat sink

Product summary

Compact,

customizable

and configurable

reference design

for battery

operated BLDC/

PMSM power

tools based on

STM32G473 and

STDRIVE 101

STEVAL-PTOOL4A

Mainstream Arm

Cortex-M4 MCU

170 MHz with

512 Kbytes of

Flash memory,

Math

Accelerator, High

Analog level

integration

STM32G473CET6

Triple half-bridge

gate driver

STDRIVE101

Applications

Industrial motor control

Compact, customizable and configurable reference design for battery operated

BLDC/PMSM power tools based on STM32G473 and STDRIVE 101

STEVAL-PTOOL4A

Data brief

DB5216 - Rev 1 - April 2024

For further information contact your local STMicroelectronics sales office.

www.st.com