STSPIN32G4 datasheet(35/48 Pages) STMICROELECTRONICS

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Application example

Figure 23 shows an application example using the STSPIN32G4 device to drive a three-phase motor with triple

shunt configuration and field oriented control algorithm.

The other features implemented are:

•

VDD (3.3 V) power supply internally generated via LDO linear regulator

•

VCC (programmable, 8 V default value) power supply internally generated via Buck regulator

•

Reset dedicated pin

•

Overcurrent protection using internal comparators connected to op-amp positive inputs (PA1, PA7, PB0)

•

Current sensing using internal operational amplifiers and ADCs:

–

Op-amp 1: PA1, PA3, PA2 (OPP, OPN, OPO)

–

Op-amp 2: PA7, PC5, PA6 (OPP, OPN, OPO)

–

Op-amp 3: PB0, PB2, PB1 (OPP, OPN, OPO)

•

Bus voltage monitoring using internal ADC (PA0)

•

Application temperature monitoring using internal ADC (PC4)

Table 26. Typical application value

Part name

Value

CBAT, CREF1, CDDA1, CREG3V3_1, CRST

100 nF / 6.3 V

CREF2, CDDA2

1 μF / 6.3 V

CREG3V3_2

10 μF / 6.3 V

COUT

10 μF / 25 V

18 μH / 1 A

STPS1H100A / 100 V

CVM

220 nF / 100 V

CVMpol

3x 220 μF / 100 V (in parallel)

RSCREF1

22 kΩ / 1 %

RSCREF2

10 kΩ / 1 %

RRST1

100 kΩ / 5 %

RRST2

200 Ω / 5 %

RBUS1

72.3 kΩ / 1 %

RBUS2

3.01 kΩ / 1 %

CBUS,CNTC

33 nF / 6.3 V

NTC1

10 kΩ / 1 %

RNTC2

4.7 kΩ / 1 %

others

Values according to application requirements

STSPIN32G4

Application example

DS13630 - Rev 1

page 35/48

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