ADM1166 Series
Super Sequencer with Margining Control and Non-Volatile Fault Recording
Manufacturer: Analog Devices
Catalog
Super Sequencer with Margining Control and Non-Volatile Fault Recording
Key Features
• Complete supervisory and sequencing solution for up to 10 supplies
• 16 event deep black box nonvolatile fault recording
• 10 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
• 5 selectable input attenuators allow supervision of supplies to14.4 V on VH6 V on VP1 to VP4 (VPx)
• 2 auxiliary (single-ended) ADC inputs
• 12-bit ADC for readback of all supervised voltages
• 5 dual-function inputs, VX1 to VX5 (VXx)High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 VGeneral-purpose logic input
• 10 programmable driver outputs, PDO1 to PDO10 (PDOx)Open-collector with external pull-upPush/pull output
• See data sheet for additional features
Description
AI
The ADM1166 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 ADM1166 integrates a 12-bit ADC and six 8-bit voltage output DACs. These circuits can be used to implement a closed-loop margining system that enables supply adjustment by altering either the feedback node or 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 func-tionality at −5% of nominal supplies), or it can be used dynamically to accurately control the output voltage of a dc-to-dc converter.APPLICATIONSCentral office systemsServers/routersMultivoltage system line cardsDSP/FPGA supply sequencingIn-circuit testing of margined supplies
