EVAL-ADM1177EBZ Analog Devices Inc, EVAL-ADM1177EBZ Datasheet
EVAL-ADM1177EBZ
Specifications of EVAL-ADM1177EBZ
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EVAL-ADM1177EBZ Summary of contents
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FEATURES Allows safe board insertion and removal from a live backplane Controls supply voltages from 3. 16.5 V Precision current sense amplifier Precision voltage input 12-bit ADC for current and voltage readback Charge pumped gate drive for external ...
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ADM1177 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 5 Thermal Characteristics .............................................................. 5 ESD Caution .................................................................................. 5 Pin ...
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SPECIFICATIONS −40°C to +85°C; typical values Table 1. Parameter VCC PIN Operating Voltage Range Supply Current Undervoltage Lockout, V UVLO Undervoltage Lockout Hysteresis, ...
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ADM1177 Parameter 1 MONITORING ACCURACY Current Sense Absolute Accuracy 0°C to +70°C 0°C to +85°C −40°C to +85° for ADC Full Scale SENSE Voltage Sense Accuracy 0°C to +70°C 0°C to +85°C −40°C to +85° for ...
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ABSOLUTE MAXIMUM RATINGS Table 2. Parameter VCC Pin SENSE Pin TIMER Pin ON Pin SS Pin GATE Pin SDA Pin, SCL Pin ADR Pin Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering, 10 sec) Junction Temperature Stresses above those ...
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ADM1177 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 VCC Positive Supply Input Pin. The operating supply voltage range is from 3. 16 undervoltage lockout (UVLO) circuit resets the ...
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TYPICAL PERFORMANCE CHARACTERISTICS 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0 (V) CC Figure 4. Supply Current vs. Supply Voltage ...
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ADM1177 (V) CC Figure 10. Gate Pull-Down Current vs. Supply Voltage –2 –4 –6 –8 –10 –12 – ...
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V (V) CC Figure 16.Timer Pull-Up Current (Initial Cycle) vs. Supply Voltage 0 –10 –20 –30 –40 –50 –60 –70 – ...
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ADM1177 120 115 110 105 100 (V) CC Figure 22. Circuit Breaker Limit Voltage vs. Supply Voltage 110 108 V OCFAST 106 104 102 V LIM 100 98 V ...
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CODE Figure 28. INL for ADC –1 –2 –3 –4 0 500 1000 1500 2000 2500 3000 CODE Figure ...
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ADM1177 OVERVIEW OF THE HOT SWAP FUNCTION When circuit boards are inserted into a live backplane, discharged supply bypass capacitors draw large transient currents from the backplane power bus as they charge. Such transient currents can cause permanent damage to ...
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GATE AND TIMER FUNCTIONS DURING A HOT SWAP OPERATION During hot insertion of a board onto a live supply rail at VCC, the abrupt application of supply voltage charges the external FET drain/gate capacitance, which can cause an unwanted gate ...
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ADM1177 (1) (2) (3)(4) (5) (6) V VCC TIMER V GATE V SENSE V OUT INITIAL TIMING CYCLE Figure 32. Startup (ON Asserts as Power Is Applied) (1) (2) (3)(4) V VCC TIMER V ...
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VOLTAGE AND CURRENT READBACK In addition to providing hot swap functionality, the ADM1177 also contains the components to allow voltage and current 2 readback over bus. The voltage output of the current sense amplifier and the voltage ...
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ADM1177 1 SCL SDA START BY MASTER FRAME 1 SLAVE ADDRESS 1 SCL (CONTINUED) SDA (CONTINUED) 1 SCL SDA START BY MASTER FRAME 1 SLAVE ADDRESS 1 SCL (CONTINUED) ...
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WRITE AND READ OPERATIONS 2 The I C specification defines several protocols for different types of read and write operations. The operations used in the ADM1177 are discussed in this section. Table 6 shows the abbreviations used in the command ...
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ADM1177 WRITE EXTENDED COMMAND BYTE In the write extended command byte operation, the master device writes to one of the three extended registers of the slave device, as follows: 1. The master device asserts a start condition on SDA. 2. ...
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READ VOLTAGE AND/OR CURRENT DATA BYTES Depending on how the device is configured, the ADM1177 can be set up to provide information in three ways: voltage and current readback, voltage only readback, and current only readback. See the Write Command ...
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ADM1177 Table 15. Status Byte Operations Bit Name Function 0 ADC_OC An ADC-based overcurrent comparison is detected on the last three conversions 1 ADC_ALERT An ADC-based overcurrent trip has occurred, causing the alert. Cleared by writing to Bit 4 of ...
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APPLICATIONS INFORMATION APPLICATIONS WAVEFORMS CH1 1.5A CH2 1.00V M40.0ms CH3 20.0V CH4 10.0V Figure 43. Inrush Current Control into 220 μF Load (Channel Channel Channel ...
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ADM1177 KELVIN SENSE RESISTOR CONNECTION When using a low value sense resistor for high current measurement, the problem of parasitic series resistance may arise. The lead resistance can be a substantial fraction of the rated resistance, making the total resistance ...
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... OUTLINE DIMENSIONS ORDERING GUIDE Model Hot Swap Retry Option 1 ADM1177-1ARMZ-R7 Automatic Retry Version ADM1177-2ARMZ-R7 1 Latched Off Version 1 EVAL-ADM1177EBZ RoHS Compliant Part. 3.10 3.00 2. 5.15 3.10 4.90 3.00 4.65 2. PIN 1 0.50 BSC 0.95 0.85 1.10 MAX 0.75 0.15 0.33 SEATING 0.23 0.05 PLANE 0 ...
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ADM1177 NOTES Purchase of licensed components of Analog Devices, Inc., or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Patent Rights to use these components ...