L5953_07 STMICROELECTRONICS [STMicroelectronics], L5953_07 Datasheet - Page 20

• Manufacturer Part Number: L5953_07
• Description: Multiple switching voltage regulator
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

SPI interface
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Table 11.
Table 12.
Test mode
.
.
d7
d7
d6
d5
d4
d3
d2
d1
d0
Diagnostic register
Diagnostic register description
HSD1W1
d6
HSD1W2
Thermal warning
d5
Test mode
HSD1W1
HSD1W2
HSD1W3
HSD2W1
HSD2W2
HSD1W3
HSD1W3
d4
The diagnostic register
is referred to a test
performed during the
normal working of the
L5953
If d7=0: HSD1 in
normal condition;
If d7=1: bit value
meaningless
If d7=0: bit value
meaningless;
If d7=1: HSD1 in
normal condition
If d7=0: bit value
meaningless;
If d7=1: HSD1 in
normal condition
If d7=0: HSD1 in
normal condition;
If d7=1: bit value
meaningless
If d7=0: bit value
meaningless
If d7=1: HSD2 in
normal condition
If d7=0: bit value
meaningless
If d7=1: HSD2 in
normal condition;
Normal condition
HSD2W1
d3
0
HSD2W2
d2
The diagnostic register
is referred to a test
performed in Test mode
If d7=0: HSD1 is in
overcurrent
If d7=1: bit value
meaningless
If d7=0: bit value
meaningless
If d7=1: an open load is
present on HSD1
If d7=0: bit value
meaningless
If d7=1: HSD1 is
shorted to the supply
voltage VDD
If d7=0: HSD2 is in
overcurrent;
If d7=1: bit value
meaningless
If d7=0: bit value
meaningless
If d7=1: an open load is
present on HSD2
If d7=0: bit value
meaningless
If d7=1: HSD1 is
shorted to the supply
voltage VDD
Over temperature
protection
activated(Tj>150°C)
HSD2W3
d1
1
THW
d0
L5953