L5953 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

L5953

Multiple switching voltage regulator

STMicroelectronics 

SPI interface

L5953

.

Table 11. Diagnostic register

d7

d6

d5

d4

d3

d2

d1

d0

Test mode HSD1W1 HSD1W2 HSD1W3 HSD2W1 HSD2W2 HSD2W3 THW

.

Table 12. Diagnostic register description

0

1

The diagnostic register

is referred to a test

The diagnostic register

d7

Test mode

performed during the is referred to a test

normal working of the performed in Test mode

L5953

If d7=0: HSD1 in

If d7=0: HSD1 is in

normal condition;

overcurrent

d6

HSD1W1

If d7=1: bit value

If d7=1: bit value

meaningless

meaningless

If d7=0: bit value

If d7=0: bit value

meaningless;

meaningless

d5

HSD1W2

If d7=1: HSD1 in

If d7=1: an open load is

normal condition

present on HSD1

If d7=0: bit value

meaningless;

If d7=0: bit value

meaningless

d4

HSD1W3

If d7=1: HSD1 in

normal condition

If d7=1: HSD1 is

shorted to the supply

voltage VDD

If d7=0: HSD1 in

If d7=0: HSD2 is in

normal condition;

overcurrent;

d3

HSD2W1

If d7=1: bit value

If d7=1: bit value

meaningless

meaningless

If d7=0: bit value

If d7=0: bit value

meaningless

meaningless

d2

HSD2W2

If d7=1: HSD2 in

If d7=1: an open load is

normal condition

present on HSD2

If d7=0: bit value

meaningless

If d7=0: bit value

meaningless

d1

HSD1W3

If d7=1: HSD2 in

normal condition;

If d7=1: HSD1 is

shorted to the supply

voltage VDD

Over temperature

d0

Thermal warning Normal condition

protection

activated(Tj>150°C)

20/31

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