MAX6872 データシートの表示（PDF） - Maxim Integrated

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MAX6872

EEPROM-Programmable, Hex/Quad, Power-Supply Sequencers/Supervisors

Maxim Integrated 

EEPROM-Programmable, Hex/Quad,

Power-Supply Sequencers/Supervisors

Pin Description

PIN

MAX6872 MAX6873

1

3

2

5

3

6

4

4

5

7

6

—

7

—

8

—

9, 10, 23, 1, 8, 9, 10,

24

23–26, 32

11

11

12

12

13

13

14

14

15

15

16

16

NAME

FUNCTION

PO2

PO3

PO4

GND

PO5

PO6

PO7

PO8

Programmable Output 2. Configurable, active-high, active-low, open-drain, weak pullup, or

charge-pump output. PO2 pulls low with a 10µA internal current sink for 1V < VABP <

VUVLO. PO2 assumes its programmed conditional output state when ABP exceeds UVLO.

Programmable Output 3. Configurable, active-high, active-low, open-drain, weak pullup

(MAX6872), push-pull (MAX6873), or charge-pump (MAX6872) output. PO3 pulls low with

a 10µA internal current sink for 1V < VABP < VUVLO. PO3 assumes its programmed

conditional output state when ABP exceeds UVLO.

Programmable Output 4. Configurable, active-high, active-low, open-drain, weak pullup

(MAX6872), push-pull (MAX6873), or charge-pump (MAX6872) output. PO4 pulls low with

a 10µA internal current sink for 1V < VABP < VUVLO. PO4 assumes its programmed

conditional output state when ABP exceeds UVLO.

Ground

Programmable Output 5. Configurable, active-high, active-low, open-drain, weak pullup, or

push-pull output. PO5 pulls low with a 10µA internal current sink for 1V < VABP < VUVLO.

PO5 assumes its programmed conditional output state when ABP exceeds UVLO.

Programmable Output 6. Configurable, active-high, active-low, open-drain, weak pullup, or

push-pull output. PO6 pulls low with a 10µA internal current sink for 1V < VABP < VUVLO.

PO6 assumes its programmed conditional output state when ABP exceeds UVLO.

Programmable Output 7. Configurable, active-high, active-low, open-drain, weak pullup, or

push-pull output. PO7 pulls low with a 10µA internal current sink for 1V < VABP < VUVLO.

PO7 assumes its programmed conditional output state when ABP exceeds UVLO.

Programmable Output 8. Configurable, active-high, active-low, open-drain, weak pullup, or

push-pull output. PO8 pulls low with a 10µA internal current sink for 1V < VABP < VUVLO.

PO8 assumes its programmed conditional output state when ABP exceeds UVLO.

N.C.

No Connection. Not internally connected.

MARGIN

MR

SDA

SCL

A0

A1

Margin Input. Configure MARGIN to either assert PO_ into a programmed state or to hold

PO_ in its existing state when driving MARGIN low (see Table 7). Leave MARGIN

unconnected or connect to DBP if unused. MARGIN overrides MR if both assert at the

same time. MARGIN is internally pulled up to DBP through a 10µA current source.

Manual Reset Input. Configure MR to either assert PO_ into a programmed state or to have

no effect on PO_ when driving MR low (see Table 6). Leave MR unconnected or connect

to DBP if unused. MR is internally pulled up to DBP through a 10µA current source.

Serial Data Input/Output (Open-Drain). SDA requires an external pullup resistor.

Serial Clock Input. SCL requires an external pullup resistor.

Address Input 0. Address inputs allow up to four MAX6872/MAX6873 connections on one

common bus. Connect A0 to GND or to the serial interface power supply.

Address Input 1. Address inputs allow up to four MAX6872/MAX6873 connections on one

common bus. Connect A1 to GND or to the serial interface power supply.

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