The ADM1062 series Super Sequencer with margining control and temperature monitoring. The Super Sequencer® configurable supervisory/sequencing device offers a single-chip solution for supply monitoring and sequencing in multiple-supply systems. In addition to these functions, the ADM1062 integrates a 12-bit ADC and six 8-bit voltage output DACs. This circuit can be used to implement a closed-loop margining system that enables supply adjustment by altering either the feedback node or the reference of a DC-to-DC converter using the DAC outputs. Supply margining can be performed with a minimum of external components. The margining loop can be used for in-circuit testing of a board during production (for example, to verify board functionality at -5% of nominal supplies) or it can be used dynamically to accurately control the output voltage of a DC-to-DC converter.
● Complete supervisory and sequencing solution for up to 10 supplies
● 10 Supply fault detectors enable supervision of supplies <0.5% accuracy at all voltages at 25°C
● 5 Selectable input attenuators allow supervision of supplies to 6V on VP1 to VP4 (VPx)
● 5 Dual-function inputs, VX1 to VX5 (VXx) - general-purpose logic input
● 10 Programmable driver outputs, PDO1 to PDO10 (PDOx) - Open-collector with external pull-up
● Sequencing engine (SE) implements state machine control of PDO outputs
● Complete voltage margining solution for 6 voltage rails
● 12-bit ADC for readback of all supervised voltages
● Internal and external temperature sensors
● Driven directly from 2.048 V (±0.25%) REFOUT pin
● More accurate external reference for improved ADC performance
● Device powered by the highest of VPx, VH for improved redundancy
● Industry-standard 2-wire bus interface (SMBus)
● Guaranteed PDO low with VH, VPx=1.2V
● 256-byte User EEPROM
