Catalog
Super Sequencer with Margining Control
Key Features
• Complete supervisory and sequencing solution for up to 8 supplies
• 8 supply fault detectors enable supervision of supplies to
• <0.5% accuracy at all voltages at 25°C
• <1.0% accuracy across all voltages and temperatures
• 4 selectable input attenuators allow supervision of supplies to
• 14.4 V on VH
• 6 V on VP1 to VP3 (VPx)
• 4 dual-function inputs, VX1 to VX4 (VXx)
• High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V
• General-purpose logic input
• 8 programmable driver outputs, PDO1 to PDO8 (PDOx)
• Open-collector with external pull-up
• Push/pull output, driven to VDDCAP or VPx
• Open-collector with weak pull-up to VDDCAP or VPx
• Internally charge-pumped high drive for use with external N-FET (PDO1 to PDO6 only)
• See data sheet for additional features
Description
AI
The ADM1069 Super Sequencer®is a configurable supervisory/sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple supply systems. In addition to these functions, the ADM1069 integrates a 12-bit analog-todigital converter (ADC) and four 8-bit voltage output digital-toanalog converters (DACs). These circuits can implement a closedloop margining system that enables supply adjustment by altering either the feedback node or reference of a dc-to-dc converter using the DAC outputs.For more information about the ADM1069 register map, refer to the AN-721 Application Note.ApplicationsCentral office systemsServers/routersMultivoltage system line cardsDSP/FPGA supply sequencingIn-circuit testing of margined supplies
