6.8 Switching Characteristics

At 1.04V ≤ VDD ≤ 6V, MR = Open, WDO pull-up resistor (Rpull-up) = 100kΩ to VDD, output RESET / WDO load (CLOAD) =

10pF and over operating free-air temperature range –40

℃ to 125℃, unless otherwise noted. VDD ramp rate ≤ 1V/µs. Typical

values are at TA = 25℃

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tSTRT

Startup delay (1)

500

µs

tSD

Watchdog startup delay

Orderable part number

TPS3435xA, TPS3435xG

0

ms

Orderable part number

TPS3435xB, TPS3435xH

180

200

220

Orderable part number

TPS3435xC, TPS3435xI

450

500

550

Orderable part number

TPS3435xD, TPS3435xJ

0.9

1

1.1

s

Orderable part number

TPS3435xE, TPS3435xK

4.5

5

5.5

Orderable part number

TPS3435xF, TPS3435xL

9

10

11

tWDO

Watchdog assert time delay

Orderable part number

TPS3435xxxxB

1.6

2

2.4

ms

Orderable part number

TPS3435xxxxC

9

10

11

ms

Orderable part number

TPS3435xxxxD

22.5

25

27.5

ms

Orderable part number

TPS3435xxxxE

45

50

55

ms

Orderable part number

TPS3435xxxxF

90

100

110

ms

Orderable part number

TPS3435xxxxG

180

200

220

ms

Orderable part number

TPS3435xxxxH

0.9

1

1.1

s

Orderable part number

TPS3435xxxxI

9

10

11

s

t MR_WDO

Propagation delay from MR low to WDO

assertion

VDD ≥ 1.25V,

MR = V MR_H to V MR_L

100

ns

(1)

Specified by design parameter.

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TPS3435

SNVSCF7A – DECEMBER 2022 – REVISED AUGUST 2024

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