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Rainbow Electronics MAX6871 User Manual

Page 26

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MAX6870/MAX6871

Table 16 only applies to PO5 of the MAX6870 and PO3
of the MAX6871. Write a 0 to a bit to make the PO5/PO3
output independent of the respective signal (IN_ primary
or secondary thresholds, WDI1 or WDI2, GPI1–GPI4,

MR, or other programmable outputs). See Table 17 for
Product 2. PO5 (MAX6870)/PO3 (MAX6871) deasserts
when Product 1 or Product 2 = 1.

EEPROM-Programmable Hex/Quad
Power-Supply Sequencers/Supervisors with ADC

26

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Table 16. PO5 (MAX6870)/PO3 (MAX6871) Output Dependency (Product 1)

REGISTER

ADDRESS

EEPROM

MEMORY

ADDRESS

BIT

OUTPUT ASSERTION CONDITIONS

[0]

1 = PO5/PO3 assertion depends on IN1 primary undervoltage threshold (Table 2).

[1]

1 = PO5/PO3 assertion depends on IN2 primary undervoltage threshold (Table 3).

[2]

1 = PO5/PO3 assertion depends on IN3 primary undervoltage threshold (Table 4).

[3]

1 = PO5/PO3 assertion depends on IN4 primary undervoltage threshold (Table 4).

[4]

1 = PO5 (MAX6870 only) assertion depends on IN5 primary undervoltage threshold (Table 4).
Must be set to 0 for the MAX6871.

[5]

1 = PO5 (MAX6870 only) assertion depends on IN6 primary undervoltage threshold (Table 4).
Must be set to 0 for the MAX6871.

[6]

1 = PO5/PO3 assertion depends on watchdog 1 (Tables 27 and 28).

24h

8024h

[7]

1 = PO5/PO3 assertion depends on watchdog 2 (Tables 27 and 28).

[0]

1 = P O5/P O3 asser ti on d ep end s on IN 1 second ar y und er vol tag e/over vol tag e thr eshol d ( Tab l e 2) .

[1]

1 = P O5/P O3 asser ti on d ep end s on IN 2 second ar y und er vol tag e/over vol tag e thr eshol d ( Tab l e 3) .

[2]

1 = P O5/P O3 asser ti on d ep end s on IN 3 second ar y und er vol tag e/over vol tag e thr eshol d ( Tab l e 4) .

[3]

1 = P O5/P O3 asser ti on d ep end s on IN 4 second ar y und er vol tag e/over vol tag e thr eshol d ( Tab l e 4) .

[4]

1 = PO5 (MAX6870 only) assertion depends on IN5 secondary undervoltage/overvoltage
threshold (Table 4). Must be set to 0 for the MAX6871.

[5]

1 = PO5 (MAX6870 only) assertion depends on IN6 secondary undervoltage/overvoltage
threshold (Table 4). Must be set to 0 for the MAX6871.

[6]

1 = PO5/PO3 assertion depends on GPI1 (Table 6).

25h

8025h

[7]

1 = PO5/PO3 assertion depends on GPI2 (Table 6).

[0]

1 = PO5/PO3 assertion depends on GPI3 (Table 6).

[1]

1 = PO5/PO3 assertion depends on GPI4 (Table 6).

[2]

1 = P O5 ( M AX 6870 onl y) asser ti on d ep end s on P O1 ( Tab l e 10) . M ust b e set to 0 for the M AX 6871.

[3]

1 = P O5 ( M AX 6870 onl y) asser ti on d ep end s on P O2 ( Tab l e 11) . M ust b e set to 0 for the M AX 6871.

[4]

1 = PO5/PO3 assertion depends on PO3 (MAX6870)/PO1 (MAX6871) (Tables 12 and 13).

[5]

1 = PO5/PO3 assertion depends on PO4 (MAX6870)/PO2 (MAX6871) (Tables 14 and 15).

[6]

1 = PO5/PO3 assertion depends on PO6 (MAX6870)/PO4 (MAX6871) (Tables 18 and 19).

26h

8026h

[7]

1 = PO5/PO3 assertion depends on PO7 (MAX6870)/PO5 (MAX6871) (Table 20).

2Ah

802Ah

[0]

1 = P O5 ( M AX 6870 onl y) asser ti on d ep end s on P O8 ( Tab l e 21) . M ust b e set to 0 for the M AX 6871.

40h

8040h

[4]

1 = PO5/PO3 asserts when MR = low (Table 7).