PS10 datasheet(7/13 Pages) SUTEX

No de pièce	PS10

Description	Quad Power Sequencing Controller

PDF	13 Pages

Scroll/Zoom	100%

Fabricant	SUTEX [Supertex, Inc]

Site Internet	http://www.supertex.com

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7 / 13 page

PS10/PS11

A051204

The following waveforms demonstrate the sequencing of

the PWRGD flags:

PWRGD Timing (PS11)

Test conditions: VIN = 48V, CRAMP = 10nF,

RTB = 118k, RTC = 59k, and RTD = 46.4k.

PWRGD Timing (Minimum Delays)

Test conditions: VIN = 48V, CRAMP = 10nF, RTB = 3.24k,

RTC = 3.24k, RTD = 3.24k, RPULL-UP = 47k.

PWRGD Timing (Maximum Delays)

Test conditions: VIN = 48V, CRAMP = 10nF, RTB = 118k,

RTC = 118k, RTD = 118k, RPULL-UP = 47k.

PS11 Power Down Sequence after UVOFF

Test conditions: CRAMP = 10nF, RTB = 3.24k, RTC = 3.24k,

RTD = 3.24k, RPULL-UP = 47k, CPWRGD_B = 0.47

µF, CPWRGD_C

= 0.94

µF, CPWRGD_D = 1.41µF, VUVOFF = 33.4V, the as-

sumed brick turn-off threshold is 2.7V min TTL logic high.

See power down sequencing on Page 11.

Relative to Negative Rail

PS10 Fiches technique(PDF) 7 Page - Supertex, Inc