MAX6872 datasheet(21/48 Pages) MAXIM

21 / 48 page

EEPROM-Programmable, Hex/Quad,

Power-Supply Sequencers/Supervisors

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Table 11 only applies to PO3 of the MAX6872 and PO1

of the MAX6873. Write a 0 to a bit to make the PO3/PO1

output independent of the respective signal (IN_ primary

or secondary thresholds, WD1 or WD2, GPI1–GPI4, MR,

or other programmable outputs). See Table 10 for

Product 1. PO3 (MAX6872)/PO1 (MAX6873) deasserts

when Product 1 or Product 2 = 1.

Table 11. PO3 (MAX6872)/PO1 (MAX6873) Output Dependency (Product 2)

ADDRESS

EEPROM

MEMORY

ADDRESS

BIT

OUTPUT ASSERTION CONDITIONS

[0]

1 = PO3/PO1 assertion depends on IN1 primary undervoltage threshold (Table 2).

[1]

1 = PO3/PO1 assertion depends on IN2 primary undervoltage threshold (Table 3).

[2]

1 = PO3/PO1 assertion depends on IN3 primary undervoltage threshold (Table 4).

[3]

1 = PO3/PO1 assertion depends on IN4 primary undervoltage threshold (Table 4).

[4]

1 = PO3 (MAX6872 only) assertion depends on IN5 primary undervoltage threshold (Table 4).

Must be set to 0 for the MAX6873.

[5]

1 = PO3 (MAX6872 only) assertion depends on IN6 primary undervoltage threshold (Table 4).

Must be set to 0 for the MAX6873.

[6]

1 = PO3/PO1 assertion depends on watchdog 1 (Tables 25 and 26).

19h

8019h

[7]

1 = PO3/PO1 assertion depends on watchdog 2 (Tables 25 and 26).

[0]

1 = PO3/PO1 assertion depends on IN1 secondary undervoltage/overvoltage threshold (Table 2).

[1]

1 = PO3/PO1 assertion depends on IN2 secondary undervoltage/overvoltage threshold (Table 3).

[2]

1 = PO3/PO1 assertion depends on IN3 secondary undervoltage/overvoltage threshold (Table 4).

[3]

1 = PO3/PO1 assertion depends on IN4 secondary undervoltage/overvoltage threshold (Table 4).

[4]

1 = PO3 (MAX6872 only) assertion depends on IN5 secondary undervoltage/overvoltage

threshold (Table 4). Must be set to 0 for the MAX6873.

[5]

1 = PO3 (MAX6872 only) assertion depends on IN6 secondary undervoltage/overvoltage

threshold (Table 4). Must be set to 0 for the MAX6873.

[6]

1 = PO3/PO1 assertion depends on GPI1 (Table 5).

1Ah

801Ah

[7]

1 = PO3/PO1 assertion depends on GPI2 (Table 5).

[0]

1 = PO3/PO1 assertion depends on GPI3 (Table 5).

[1]

1 = PO3/PO1 assertion depends on GPI4 (Table 5).

[2]

1 = PO3 (MAX6872 only) assertion depends on PO1 (Table 8). Must be set to 0 for the MAX6873.

[3]

1 = PO3 (MAX6872 only) assertion depends on PO2 (Table 9). Must be set to 0 for the MAX6873.

[4]

1 = PO3/PO1 assertion depends on PO4 (MAX6872)/PO2 (MAX6873) (Tables 12 and 13).

[5]

1 = PO3/PO1 assertion depends on PO5 (MAX6872)/PO3 (MAX6873) (Tables 14 and 15).

[6]

1 = PO3/PO1 assertion depends on PO6 (MAX6872)/PO4 (MAX6873) (Tables 16 and 17).

1Bh

801Bh

[7]

1 = PO3/PO1 assertion depends on PO7 (MAX6872)/PO5 (MAX6873) (Table 18).

1Ch

801Ch

[1]

1 = PO3 (MAX6872 only) assertion depends on PO8 (Table 19). Must be set to 0 for the MAX6873.

40h

8040h

[2]

1 = PO3/PO1 asserts when MR = low (Table 6).

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