STGAP1ASTR datasheet(61/70 Pages) STMICROELECTRONICS

61 / 70 page

DocID029344 Rev 2

61/70

STGAP1AS

Programming manual

9.2.6

STATUS1 register (low voltage side)

The STATUS1 is a read only register that reports some device failure flags.

All flags are active high (the high value indicates a failure condition). The STATUS1 register

has the structure of Table 48.

A description of the STATUS1 register bits is provided in Table 49.

Table 48. STATUS1 register

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

OVLOH

OVLOL

DESAT

SENSE

UVLOH

UVLOL

TSD

TWN

Default(1)

Reset

1. Default value of the local copy of the register. The value will be updated according to the actual information from the

isolated side. The default is forced at the device power-up, when the registers are reset all the flags are forced low (no

failures).

Table 49. STATUS1 register description

Name

Bit

Fault

Latched

Force

“safe state”

Note

OVLOH

VH overvoltage flag.

It is forced high when VH is over

OVVHoff threshold.

Always

Yes

OVLOL

VL overvoltage flag.

It is forced high when VL is over

OVVLoff threshold.

Always

Yes

DESAT

Desaturation flag.

It is forced high when DESAT pin

voltage reach VDESATth threshold.

Always

Yes

SENSE

Sense flag.

It is forced high when SENSE pin

voltage reach VSENSEth threshold.

Always

Yes

UVLOH

VH undervoltage flag.

It is forced high when VH is below

VHoff threshold.

When

UVLOlatch is

high only

Yes

If not latched (UVLOlatch low)

UVLOH returns low when VH is

over VHon threshold.

UVLOL

VL undervoltage flag.

It is forced high when VL is over VLoff

threshold.

When

UVLOlatch is

high only

Yes

If not latched (UVLOlatch low)

UVLOL returns low when VL is

below VLon threshold.

TSD

Thermal shutdown protection flag.

It is forced high when

overtemperature shutdown threshold

is reached.

(hysteresis)

Yes

TWN

Thermal warning flag.

It is forced high when

overtemperature shutdown threshold

is reached.

(hysteresis)

STGAP1ASTR датащи(PDF) 61 Page - STMicroelectronics

STGAP1ASTR датащи(HTML) 61 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70

датащи скачать

ссылки URL