ADM1168 ADM1168ASTZ Super Sequencer and Monitor with Nonvolatile Fault Recording

Features

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FEATURES

Complete supervisory and sequencing solution for up to

8 supplies

16 event deep black box nonvolatile fault recording

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

NFET (PDO1 to PDO6 only)

Sequencing engine (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

Device powered by the highest of VPx, VH for improved

redundancy

User EEPROM: 256 bytes

Industry-standard 2-wire bus interface (SMBus)

Guaranteed PDO low with VH, VPx = 1.2 V

Available in 32-lead, 7 mm × 7 mm LQFP

Applications

Central office systems

Servers/routers

Multivoltage system line cards

DSP/FPGA supply sequencing

In-circuit testing of margined supplies