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ADM1065 Datasheet(PDF) 1 Page - Analog Devices |
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ADM1065 Datasheet(HTML) 1 Page - Analog Devices |
1 / 28 page Super Sequencer and Monitor ADM1065 Rev. D Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2004–2011 Analog Devices, Inc. All rights reserved. FEATURES Complete 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 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 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 For more information about the ADM1065 register map, refer to the AN-698 Application Note at www.analog.com. FUNCTIONAL BLOCK DIAGRAM PDO7 PDO8 PDO9 PDO10 PDOGND VDD ARBITRATOR VCCP GND VX1 VX2 VX3 VX4 VX5 VP1 VP2 VP3 VP4 VH AGND VDDCAP PROGRAMMABLE RESET GENERATORS (SFDs) DUAL- FUNCTION INPUTS (LOGIC INPUTS OR SFDs) SEQUENCING ENGINE CONFIGURABLE OUTPUT DRIVERS (LV CAPABLE OF DRIVING LOGIC SIGNALS) PDO1 PDO2 PDO3 PDO4 PDO5 PDO6 SDA SCL A1 A0 SMBus INTERFACE REFOUT REFGND VREF EEPROM ADM1065 CONFIGURABLE OUTPUT DRIVERS (HV CAPABLE OF DRIVING GATES OF N-FET) Figure 1. GENERAL DESCRIPTION The ADM1065 Super Sequencer® is a configurable supervisory/ sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple-supply systems. The device also provides up to 10 programmable inputs for moni- toring undervoltage faults, overvoltage faults, or out-of-window faults on up to 10 supplies. In addition, 10 programmable outputs can be used as logic enables. Six of these programmable outputs can each provide up to a 12 V output for driving the gate of an N-FET that can be placed in the path of a supply. The logical core of the device is a sequencing engine. This state machine-based construction provides up to 63 different states. This design enables very flexible sequencing of the outputs based on the condition of the inputs. The ADM1065 is controlled via configuration data that can be programmed into an EEPROM. The whole configuration can be programmed using an intuitive GUI-based software package provided by Analog Devices, Inc. |
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