DLPC6421 datasheet(18/48 Pages) TI1

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DLPC6421

DLPS117 – JULY 2018

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Test and Reset Timing Requirements (continued)

Parameter

MIN

MAX

UNIT

(1)

With 1.8-V power applied.

(2)

As long as noise on this signal is below the hysteresis threshold.

t W1(L)

Pulse duration, inactive low, PWRGOOD

50% to 50% reference points

(signal)

1000(1)

tt1

Transition time, PWRGOOD, tt1= tf/tr

20% to 80% reference points

(signal)

625

µs

tW2(L)

Pulse duration, inactive low, POSENSE

50% to 50% reference points

(signal)

500

µs

tW2(L)

Pulse duration, inactive low, POSENSE

50% to 50% reference points

(signal)

1000(1)

tt2

Transition time, POSENSE, tt1= tf/tr

20% to 80% reference points

(signal)

25(2)

µs

tPH

Power Hold time, POSENSE remains active after

PWRGOOD is de-asserted

20% to 80% reference points

(signal)

500

µs

tEW

Early Warning time, PWRGOOD goes inactive low prior

to any power supply voltage going below its specification

500

µs

tW1(L)+tW2(

The sum of PWRGOOD and POSENSE inactive time

1050(1)

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