ADM1064ASUZ Analog Devices Inc, ADM1064ASUZ Datasheet
ADM1064ASUZ
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ADM1064ASUZ Summary of contents
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FEATURES Complete supervisory and sequencing solution for 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 ...
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ADM1064 TABLE OF CONTENTS Features .............................................................................................. 1 Functional Block Diagram .............................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Detailed Block Diagram .................................................................. 3 Specifications..................................................................................... 4 Pin Configurations and Function Descriptions ........................... 7 Absolute Maximum Ratings............................................................ 9 ...
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The logical core of the device is a sequencing engine (SE). This state machine-based construction provides different states. This design enables very flexible sequencing of the outputs, based on the condition of the inputs. DETAILED BLOCK DIAGRAM ...
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ADM1064 SPECIFICATIONS 3 14 VPx = 3 6.0 V Table 1. Parameter POWER SUPPLY ARBITRATION VH, VPx VPx VH VDDCAP C VDDCAP POWER SUPPLY Supply Current VPx ...
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Parameter Conversion Time Offset Error Input Noise REFERENCE OUTPUT Reference Output Voltage Load Regulation Minimum Load Capacitance PSRR PROGRAMMABLE DRIVER OUTPUTS High Voltage (Charge Pump) Mode (PDO1 to PDO6) Output Impedance OUTAVG Standard (Digital Output) Mode (PDO1 ...
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ADM1064 Parameter Data Setup Time, t SU;DAT Data Hold Time, t HD;DAT Input Low Current SEQUENCING ENGINE TIMING State Change Time 1 At least one of the VH, VPx pins must be ≥3 maintain the device ...
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PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS VX1 1 PIN 1 VX2 2 INDICATOR VX3 3 VX4 4 ADM1064 VX5 5 TOP VIEW VP1 6 (Not to Scale) VP2 7 VP3 8 VP4 9 VH ...
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ADM1064 Pin No. 1 Mnemonic LFCSP TQFP 39 46 VDDCAP GND 1 Note that the LFCSP has an exposed pad on the bottom. This pad connect (NC). If possible, this pad should be soldered ...
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ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Voltage on VH Pin Voltage on VPx Pins Voltage on VXx Pins Voltage on A0, A1 Pins Voltage on REFIN, REFOUT Pins Voltage on VDDCAP, VCCP Pins Voltage on PDOx Pins Voltage on SDA, ...
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ADM1064 TYPICAL PERFORMANCE CHARACTERISTICS (V) VP1 Figure 5. V vs. V VDDCAP (V) VH Figure ...
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I (µA) LOAD Figure 11. Charge-Pumped V (FET Drive Mode) vs. I PDO1 5.0 4.5 4.0 3.5 3.0 2.5 VP1 = 3V 2.0 1.5 1.0 0.5 0 ...
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ADM1064 2.058 2.053 2.048 2.043 2.038 –40 – TEMPERATURE (°C) Figure 17. REFOUT vs. Temperature VP1 = 3.0V VP1 = 4.75V 60 80 100 Rev Page ...
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POWERING THE ADM1064 The ADM1064 is powered from the highest voltage input on either the positive-only supply inputs (VPx) or the high voltage supply input (VH). This technique offers improved redundancy because the device is not dependent on any particular ...
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ADM1064 INPUTS SUPPLY SUPERVISION The ADM1064 has 10 programmable inputs. Five of these are dedicated supply fault detectors (SFDs). These dedicated inputs are called VH and VPx (VP1 to VP4) by default. The other five inputs are labeled VXx (VX1 ...
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The hysteresis value is given × N /255 HYST R THRESH where the desired hysteresis voltage. HYST N is the decimal value of the 5-bit hysteresis code. THRESH Note that N has a maximum ...
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ADM1064 OUTPUTS SUPPLY SEQUENCING THROUGH CONFIGURABLE OUTPUT DRIVERS Supply sequencing is achieved with the ADM1064 using the programmable driver outputs (PDOs) on the device as control signals for supplies. The output drivers can be used as logic enables or as ...
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SEQUENCING ENGINE OVERVIEW The ADM1064 sequencing engine (SE) provides the user with powerful and flexible control of sequencing. The SE implements a state machine control of the PDO outputs, with state changes conditional on input events. SE programs can enable ...
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ADM1064 SEQUENCING ENGINE APPLICATION EXAMPLE The application in this section demonstrates the operation of the SE. Figure 25 shows how the simple building block of a single SE state can be used to build a power-up sequence for a three- ...
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Monitoring Fault Detector The monitoring fault detector block is used to detect a failure on an input. The logical function implementing this is a wide OR gate that can detect when an input deviates from its expected condition. The clearest ...
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ADM1064 VOLTAGE READBACK The ADM1064 has an on-board 12-bit accurate ADC for voltage readback over the SMBus. The ADC has a 12-channel analog mux on the front end. The 12 channels consist of the 10 SFD inputs (VH, VPx, and ...
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APPLICATIONS DIAGRAM 12V OUT 3V OUT 3.3V OUT 2.5V OUT 1.8V OUT 1.2V OUT 0.9V OUT POWRON RESET VH ADM1064 VP1 PDO1 VP2 PDO2 VP3 VP4 VX1 PDO3 VX2 PDO4 VX3 PDO5 PWRGD PDO6 ...
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ADM1064 COMMUNICATING WITH THE ADM1064 CONFIGURATION DOWNLOAD AT POWER-UP The configuration of the ADM1064 (undervoltage/overvoltage thresholds, glitch filter timeouts, PDO configurations, and so on) is dictated by the contents of the RAM. The RAM comprises digital latches that are local ...
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POWER-UP (V > 2.5V) CC EEPROM UPDATING THE SEQUENCING ENGINE Sequencing engine (SE) functions are not updated in the same way as regular configuration latches. The SE has its own dedicated 512-byte nonvolatile, electrically erasable, programmable, read- only memory (EEPROM) ...
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ADM1064 The device also has several identification registers (read-only) that can be read across the SMBus. Table 11 lists these registers with their values and functions. Table 11. Identification Register Values and Functions Name Address Value Function MANID 0xF4 0x41 ...
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SCL SDA START BY MASTER FRAME 1 SLAVE ADDRESS 1 SCL (CONTINUED) SDA (CONTINUED) FRAME 3 DATA BYTE Figure 32. General SMBus Read Timing Diagram t ...
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ADM1064 SMBus PROTOCOLS FOR RAM AND EEPROM The ADM1064 contains volatile registers (RAM) and nonvolatile registers (EEPROM). User RAM occupies Address 0x00 to Address 0xDF; the EEPROM occupies Address 0xF800 to Address 0xFBFF. Data can be written to and read ...
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To set up a 2-byte EEPROM address for a subsequent read, write, block read, block write, or page erase. In this case, the command byte is the high byte of EEPROM Address 0xF8 to EEPROM Address 0xFB. The only ...
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ADM1064 Block Read In a block read operation, the master device reads a block of data from a slave device. The start address for a block read must have been set previously. In the ADM1064, this is done by a ...
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... ADM1064ACP-REEL7 −40°C to +85°C 1 ADM1064ACPZ −40°C to +85°C ADM1064ASU −40°C to +85°C ADM1064ASU-REEL −40°C to +85°C ADM1064ASU-REEL7 −40°C to +85°C 1 ADM1064ASUZ −40°C to +85°C EVAL-ADM1064LFEBZ 1 1 EVAL-ADM1064TQEBZ RoHS Compliant Part. 6.00 BSC SQ 0.60 MAX 0.50 ...
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ADM1064 NOTES Rev Page ...
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NOTES Rev Page ADM1064 ...
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ADM1064 NOTES ©2004–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04633-0-5/08(C) Rev Page ...