ADM1068 datasheet(3/28 Pages) AD

3 / 28 page

Preliminary Technical Data

ADM1068

Rev. PrB | Page 3 of 28

GENERAL DESCRIPTION

(continued from Page 1)

The device provides up to eight programmable inputs for

monitoring under, over, or out-of-window faults on up to eight

supplies. In addition, eight programmable outputs can be used

as logic enables. Six of them can also provide up to a 12 V

output for driving the gate of an N-channel FET, which can be

placed in the path of a supply.

The logical core of the device is a sequencing engine. This state-

machine-based construction provides up to 63 different states.

This design enables very flexible sequencing of the outputs,

based on the condition of the inputs.

The device is controlled via configuration data that can be

programmed into an EEPROM. The whole configuration can be

programmed using an intuitive GUI-based software package

provided by ADI.

GPI SIGNAL

CONDITIONING

SFD

GPI SIGNAL

CONDITIONING

SFD

SELECTABLE

ATTENUATOR

SELECTABLE

ATTENUATOR

DEVICE

CONTROLLER

OSC

EEPROM

SDA SCL

SMBus

INTERFACE

ADM1068

CONFIGURABLE

O/P DRIVER

(HV)

PDO1

PDO2

PDOGND

PDO3

GND

PDO4

PDO5

CONFIGURABLE

O/P DRIVER

(HV)

PDO6

CONFIGURABLE

O/P DRIVER

(LV)

PDO7

CONFIGURABLE

O/P DRIVER

(LV)

PDO8

SEQUENCING

ENGINE

VX2

VX3

VP2

VP3

VP1

VX1

AGND

VX4

VDD

ARBITRATOR

VCCP

REG 5.25V

CHARGE PUMP

REFOUT

µF

REFGND

VREF

µF

VDDCAP

Figure 2. Detailed Block Diagram

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