STPM066S datasheet(12/67 Pages) STMICROELECTRONICS

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Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

VUV_L

Under voltage threshold at

falling edge of output (as % of

typical output voltage)

SPI bit = 1

VUV_HYS

Hysteresis of UV

VOV_H_BUCK

VOV_H_BOOST, LDO

VOV_H_VREF

Over voltage threshold at

rising edge of output (as % of

typical output voltage)

BUCK_XTH<2> = 0

BOOST_XTH<2> = 0

VREF_XTH<1> = 0 (default)

-3.5

107

108

+3.5

VOV_H_BUCK

VOV_H_BOOST, LDO

VOV_H_VREF

Over voltage threshold at

rising edge of output (as % of

typical output voltage)

BUCK_XTH<2> = 1

BOOST_XTH<2> = 1

VREF_XTH<1> = 1

-3.5

112

113

+3.5

VOV_HYS

Hysteresis of OV

tUV_filter, BOOST, Vref

Under voltage threshold filter

time

µs

tOV_filter, BOOST, Vref

Over voltage threshold filter

time

µs

tUV_filter_BUCK

Under voltage threshold filter

time

µs

tOV_filter_BUCK

Over voltage threshold filter

time

µs

Power Good

VPG

PGx Threshold as % of typical

output voltage

SPI bit = 0 (default)

VPG

PGx Threshold as % of typical

output voltage

SPI bit = 1

tGLITCH_PG

Glitch Filter Time for PG

µs

Watchdog trigger time

VHWDI

WDI pin threshold high

2.3

VLWDI

WDI pin threshold low

–

TLW

Long open window

160

200

240

TEFW1

Early Failure

Window 1

WD_TWIN<1:0> = 00

6.4

TLFW1

Late Failure

Window 1

WD_TWIN<1:0> = 00

15.6

TSW1

Safe Window 1

WD_TWIN<1:0> = 00

7.8

12.7

TEFW2

Early Failure

Window 2

WD_TWIN<1:0> = 01

12.7

TLFW2

Late Failure

Window 2

WD_TWIN<1:0> = 01

31.1

TSW2

Safe Window 2

WD_TWIN<1:0> = 01

15.6

25.5

TEFW3

Early Failure

Window 3

WD_TWIN<1:0> = 10

25.5

TLFW3

Late Failure

Window 3

WD_TWIN<1:0> = 10

62.2

–

TSW3

Safe Window 3

WD_TWIN<1:0> = 10

31.1

50.9

STPM066S

Electrical characteristics

DS12976 - Rev 2

page 12/67

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