ADM1166ASUZ

ADM1166 is a super sequencer with margining control and nonvolatile fault recording. This 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, this integrates a 12bit ADC and six 8bit 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 or it can be used dynamically to accurately control the output voltage of a dc-to-dc converter. Typical applications are central office systems, servers/routers, multivoltage system line cards, DSP/FPGA supply sequencing, In-circuit testing of margined supplies.

• Complete supervisory and sequencing solution for up to 10 supplies
• 16 event deep black box nonvolatile fault recording, 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, push/pull output, driven to VDDCAP or VPx
• Open collector with weak pull-up to VDDCAP/VPx, SE implements state machine control of PDO outputs
• State changes conditional on input events, enables complex control of boards
• Power-up and power-down sequence control, fault event handling, interrupt generation on warnings
• Watchdog function can be integrated in SE, program software control of sequencing through SMBus
• 12bit ADC for readback of all supervised voltages
• 48-lead thin plastic quad flat package [TQFP], -40°C to +85°C temperature range

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party