Table 4. in3–in6 threshold settings – Rainbow Electronics MAX6871 User Manual

Page 16

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MAX6870/MAX6871

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

16

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Table 4. IN3–IN6 Threshold Settings

REGISTER

ADDRESS

EEPROM

MEMORY

ADDRESS

BIT

RANGE

DESCRIPTION

02h

8002h

[7:0]

IN3 primary undervoltage detector threshold (V3A) (see equations in the IN3–IN6 section).

03h

8003h

[7:0]

IN4 primary undervoltage detector threshold (V4A) (see equations in the IN3–IN6 section).

04h

8004h

[7:0]

IN5 (MAX6870 only) primary undervoltage detector threshold (V5A)
(see equations in the IN3–IN6 section).

05h

8005h

[7:0]

IN6 (MAX6870 only) primary undervoltage detector threshold (V6A)
(see equations in the IN3–IN6 section).

08h

8008h

[7:0]

IN3 secondary undervoltage/overvoltage detector threshold (V3B)
(see equations in the IN3–IN6 section).

09h

8009h

[7:0]

IN4 secondary undervoltage/overvoltage detector threshold (V4B)
(see equations in the IN3–IN6 section).

0Ah

800Ah

[7:0]

IN5 (MAX6870 only) secondary undervoltage/overvoltage detector threshold (V5B)
(see equations in the IN3–IN6 section).

0Bh

800Bh

[7:0]

IN6 (MAX6870 only) secondary undervoltage/overvoltage detector threshold (V6B)
(see equations in the IN3–IN6 section).

[2]

IN3 secondary overvoltage/undervoltage selection.
0 = overvoltage threshold. 1 = undervoltage threshold.

[3]

IN4 secondary overvoltage/undervoltage selection.
0 = overvoltage threshold. 1 = undervoltage threshold.

[4]

IN5 (MAX6870 only) secondary overvoltage/undervoltage selection.
0 = overvoltage threshold. 1 = undervoltage threshold.

[5]

IN6 (MAX6870 only) secondary overvoltage/undervoltage selection.
0 = overvoltage threshold. 1 = undervoltage threshold.

0Ch

800Ch

[7:6]

Not used.

[1]

IN 3 r ang e sel ecti on.
0 = + 1V to + 5.5V r ang e i n 20m V i ncr em ents. 1 = + 0.5V to + 3.05V r ang e i n 10m V i ncr em ents.

[2]

IN 4 r ang e sel ecti on.
0 = + 1V to + 5.5V r ang e i n 20m V i ncr em ents. 1 = + 0.5V to + 3.05V r ang e i n 10m V i ncr em ents.

[3]

IN 5 ( M AX 6870 onl y) r ang e sel ecti on.
0 = + 1V to + 5.5V r ang e i n 20m V i ncr em ents. 1 = + 0.5V to + 3.05V r ang e i n 10m V i ncr em ents.

[4]

IN 6 ( M AX 6870 onl y) r ang e sel ecti on.
0 = + 1V to + 5.5V r ang e i n 20m V i ncr em ents. 1 = + 0.5V to + 3.05V r ang e i n 10m V i ncr em ents.

0Dh

800Dh

[5]

Not used.

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