ISL6550A(2005) データシートの表示（PDF） - Intersil

部品番号

コンポーネント説明

メーカー

ISL6550A
(Rev.:2005)

SAM (Supervisor And Monitor)

Intersil 

ISL6550A, ISL6550C

Logic Options

OPTION DEFINITIONS

START Pin:

PEN input is high AND

VCC is above the UVLO threshold AND

OV condition does not exist AND

UVDLY condition does not exist.

Fault Latch is not set.

PGOOD Pin:

VCC is above the UVLO threshold AND

UV condition does not exist AND

OV condition does not exist AND

PEN input is high AND

Fault latch is not set.

Fault Latch Set by:

OV condition OR

UVDLY condition (UV has persisted past the UVDLY time-out)

Fault Latch Reset by:

OV condition does not exist AND

UVDLY condition does not exist AND

VCC below UVLO threshold OR

PEN input low

OVUV Detection:

UV detect threshold = Vovuvth (voltage at OVUVTH pin)

OV detect threshold = Vbdac + (Vbdac - Vovuvth)

UV and OV threshold hysteresis = 10% of (Vbdac - Vovuvth)

UV and OV threshold hysteresis = 40% of (Vbdac - Vovuvth)

A

C

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

8

FN9036.4

January 18, 2005

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