The ADM1166ACPZ 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 ADM1166ACPZ 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.
Applications- Central office systems
- Servers/routers
- Multivoltage system line cards
- DSP/FPGA supply sequencing
- In-circuit testing of margined supplies
Feature
- 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 to-- 14.4 V on VH-- 6 V on VP1 to VP4 (VPx)
- 5 dual-function inputs, VX1 to VX5 (VXx)-- High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V-- General-purpose logic input
- 10 programmable driver outputs, PDO1 to PDO10 (PDOx)-- Open-collector with external pull-up-- Push/pull output
- See data sheet for additional features
Applications
- Central office systems
- Servers/routers
- Multivoltage system line cards
- DSP/FPGA supply sequencing
- In-circuit testing of margined supplies
(Picture: Pinout)
