ADM1062ASU データシートの表示（PDF） - Analog Devices

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ADM1062ASU

Multisupply Supervisor/Sequencer with Margining Control and Temperature Monitoring

Analog Devices 

Preliminary Technical Data

GENERAL DESCRIPTION

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In addition to these functions the ADM1062 integrates a 12-bit

ADC and six 8-bit voltage output DACs. These circuits can be

used to implement a closed loop margining system. This

enables supply adjustment by altering either the feedback node

or reference of a DC/DC Converter using the DAC outputs. The

supply margining can be performed, with a minimum of

external components, to an accuracy of 0.5%. The margining

loop can be used at In Circuit Testing of a board during

production (to verify the board’s functionality at say −5% of

nominal supplies), or can be used dynamically to accurately

control the output voltage of a DC/DC converter.

The device also provides up to ten programmable inputs for

monitoring Under, Over, or out-of-window faults on up to ten

supplies. In addition, ten programmable outputs are provided.

These can be used as logic enables. Six of them can also provide

ADM1062

up to a +12V output for driving the gate of an N- Channel FET

which may be placed in the path of a supply.

Temperature measurement is possible with the ADM1062. The

device contains one internal temperature sensor and a

differential input for a remote thermal diode. These are

measured using the 12- bit ADC.

The logical core of the device is a Sequencing Engine. This is a

state machine based construction, providing up to 63 different

states. This enables very flexible sequencing of the outputs,

based on the condition of the inputs.

The device is controlled via configuration data which can

programmed into an EEPROM. All of this configuration can be

programmed using an intuitive GUI based software package

provided by ADI.

Rev. PrJ | Page 3 of 32

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