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ADM1067ASU-REEL データシート(PDF) 1 Page - Analog Devices |
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ADM1067ASU-REEL データシート(HTML) 1 Page - Analog Devices |
1 / 32 page Super Sequencer® with Open-Loop Margining DACs ADM1067 Rev. B 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 ©2006 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 Supplies up to 14.4 V on VH Supplies up to 6 V on VPn (VP1 to VP4) 5 dual-function inputs, VXn (VX1 to VX5) High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V General-purpose logic input 10 programmable output drivers (PDO1 to PDO10) Open collector with external pull-up Push/pull output, driven to VDDCAP or VPn Open collector with weak pull-up to VDDCAP or VPn 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 Open-loop margining solution for 6 voltage rails 6 voltage output 8-bit DACs (0.300 V to 1.551 V) allow voltage adjustment via dc-to-dc converter trim/feedback node Device powered by the highest of VPn, VH for improved redundancy User EEPROM: 256 bytes Industry-standard 2-wire bus interface (SMBus) Guaranteed PDO low with VH, VPn = 1.2 V Available in 2 packages 40-lead, 6 mm × 6 mm LFCSP 48-lead, 7 mm × 7 mm TQFP For more information about the ADM1067 register map, refer to the AN-698 Application Note. FUNCTIONAL BLOCK DIAGRAM PDO7 PDO8 PDO9 PDO10 GND VCCP VX1 VX2 VX3 VX4 VX5 VP1 VP2 VP3 VP4 VH SFDGND VDD ARBITRATOR VDDCAP PROGRAMMABLE RESET GENERATORS (SFDs) DUAL- FUNCTION INPUTS (LOGIC INPUTS OR SFDs) SEQUENCING ENGINE CONFIGURABLE OUTPUT DRIVERS (HV CAPABLE OF DRIVING GATES OF N-CHANNEL FET) CONFIGURABLE OUTPUT DRIVERS (LV CAPABLE OF DRIVING LOGIC SIGNALS) PDO1 PDO2 PDO3 PDO4 PDO5 PDO6 SDA SCL A1 A0 SMBus INTERFACE EEPROM ADM1067 REFOUT REFGND VREF DAC1 VOUT DAC DAC2 VOUT DAC DAC3 VOUT DAC DAC4 VOUT DAC DAC5 VOUT DAC DAC6 VOUT DAC MDN MUP Figure 1. APPLICATIONS Central office systems Servers/routers Multivoltage system line cards DSP/FPGA supply sequencing In-circuit testing of margined supplies GENERAL DESCRIPTION The ADM1067 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 ADM1067 integrates six 8-bit voltage output DACs. These circuits can be used to implement an open-loop margining system, which enables supply adjustment by altering either the feedback node or reference of a dc-to-dc converter using the DAC outputs. (continued on Page 3) |
同様の部品番号 - ADM1067ASU-REEL |
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同様の説明 - ADM1067ASU-REEL |
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