STSPIN32G4TR datasheet(29/48 Pages) STMICROELECTRONICS

29 / 48 page

The full list of digital inputs and outputs is listed below:

Table 15. INxL and INxH inputs truth table

Signal

Type

Description

Notes

INH1

Input

High-side 1 driving signal

Pull-down

INH2

Input

High-side 2 driving signal

Pull-down

INH3

Input

High-side 3 driving signal

Pull-down

INL1

Input

Low-side 1 driving signal

Pull-down

INL2

Input

Low-side 2 driving signal

Pull-down

INL3

Input

Low-side 3 driving signal

Pull-down

WAKE

Input

Active high for wakeup from standby

Pull-down

READY

Open-drain output

Device ready signal

Conflict protection

nFAULT

Open-drain output

Fault signal

Conflict protection

SCL

Input

I2C clock

Pull-up

SDA

Input and open-drain

output

I2C data

Pull-up

Conflict protection

All the input lines have an internal pull-down to guarantee the low logic level even if no driving input is present.

The open-drain outputs are designed to be protected against driving conflict with the corresponding GPIO of the

MCU. If the GPIO is set as push-pull output with high value and the respective open-drain is on, both the GPIO

and the open-drain are not damaged by this condition.

5.5.1

Status and clearing faults

The device status is reported in the STATUS register. In case of thermal shutdown or VCC undervoltage the

device automatically returns operative when failure cause is removed.

In case of RESET or VDS monitoring protection triggering, the fault is latched, and the device may return

operative in two ways (i.e. clearing fault):

Forcing all the driving inputs INxL and INxH low for at least tFAULT,reset. The time counting does not start if

inputs were already low before the fault occurrence (refer to Figure 21).

Setting all bits of the CLEAR register through the I2C interface.

Figure 21. FAULT clearing via input lines

FAULT

At least one

input HIGH to LOW

All inputs

LOW

INxL / INxH

FAULT

event

tFAULT,reset

< tFAULT,reset

As a RESET is done on power-up, a clearing of the faults is required to have the device operative.

5.5.2

READY output

The READY open-drain output indicates if the device status does not allow the driving of the external MOSFETs.

STSPIN32G4

Control logic

DS13630 - Rev 1

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