ADM1065 Datasheet | Analog Devices

FEATURES plete supervisory and sequencing solution for up to 10 supplies 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 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) Sequencing engine (SE) implements state machine control of PDO outputs State changes conditional on input events Enables plex 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 40-lead, 6 mm × 6 mm LFCSP and 48-lead, 7 mm × 7 mm TQFP packages APPLICATIONS Central office systems Servers/routers Multivoltage system line cards DSP/FPGA supply sequencing In-circuit testing of margined supplies Super Sequencer and Monitor ADM1065 FUNCTIONAL BLOCK DIAGRAM REFOUT REFGND SDA SCL A1 A0 VREF SMBus INTERFACE EEPROM VX1 VX2 VX3 VX4 VX5 VP1 VP2 VP3 VP4 VH AGND VDDCAP DUALFUNCTION INPUTS (LOGIC INPUTS OR SFDs) PROGRAMMABLE RESET GENERATORS (SFDs) SEQUENCING ENGINE CONFIGURABLE OUTPUT DRIVERS (HV CAPABLE OF DRIVING GATES OF N-FET) CONFIGURABLE OUTPUT DRIVERS (LV CAPABLE OF DRIVING LOGIC SIGNALS) VDD ARBITRATOR VCCP Figure 1. PDO1 PDO2 PDO3 PDO4 PDO5...