MIC2589/2595
Micrel
Pin Number
12
Pin Name
PWRGD2
(MIC2589-1)
(MIC2595-1)
Pin Function
Power-Good Output 2: Asserted when the following is true: (PWRGD1 =
Asserted) AND (Time after Assertion of PWRGD1 = Time PWRGD2, as
programmed by the capacitor on PGTIMER). Once PWRGD1 is asserted,
the PGTIMER pin begins to change and PWRGD2 will assert when
PGTIMER crosses the PWRGD2 threshold (V
THRESH(PG2)
= 0.63V, typical).
Also see PWRGD1 and PGTIMER pin descriptions.
/Power-Good Output 2: Asserted when the following is true: (/PWRGD1 =
Asserted) AND (Time after Assertion of /PWRGD1 = Time /PWRGD2, as
programmed by the capacitor on PGTIMER). Once /PWRGD1 is asserted, the
PGTIMER pin begins to change and /PWRGD2 will assert when PGTIMER
crosses the /PWRGD2 threshold (V
THRESH(PG2)
= 0.63V, typical). Also see
/PWRGD1 and PGTIMER pin descriptions.
Power-Good Output 3: Asserted when the following is true: (PWRGD1 =
Asserted) AND (Time after Assertion of PWRGD1 = Time PWRGD3, as
programmed by the capacitor on PGTIMER). Once PWRGD1 is asserted,
the PGTIMER pin begins to change and PWRGD3 will assert when
PGTIMER crosses the PWRGD3 threshold (V
THRESH(PG3)
= 1.15V, typical).
Also see PWRGD1 and PGTIMER pin descriptions.
/Power-Good Output 3: Open Collector. Asserted when the following is true:
(/PWRGD1 = Asserted) AND (Time after Assertion of /PWRGD1 = Time
/PWRGD3, as programmed by the capacitor on PGTIMER). Once /PWRGD1
is asserted, the PGTIMER pin begins to change and /PWRGD3 will assert
when PGTIMER crosses the /PWRGD3 threshold (V
THRESH(PG3)
= 1.15V,
typical). Also see /PWRGD1 and PGTIMER pin descriptions.
Positive Supply Input.
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12
/PWRGD2
(MIC2589-2)
(MIC2595-2)
13
PWRGD3
(MIC2589-1)
(MIC2595-1)
13
/PWRGD3
(MIC2589-2)
(MIC2595-2)
14
VDD
M9999-031504
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4
March 2004
MICREL [ MICREL SEMICONDUCTOR ]
