EVAL-ADM1176EBZ Analog Devices Inc, EVAL-ADM1176EBZ Datasheet
EVAL-ADM1176EBZ
Specifications of EVAL-ADM1176EBZ
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EVAL-ADM1176EBZ 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 N-channel ...
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ADM1176 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 6 Thermal Characteristics .............................................................. 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. ...
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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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ADM1176 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°C V for ADC ...
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Parameter Low Period of the SCL Clock High Period of the SCL Clock 3 ADC Conversion Time 4 Fast Overcurrent Response Time Setup Time for a Repeated Start Condition, t SU;STA SDA Output Data Hold Time, t HD;DAT Setup Time ...
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ADM1176 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter VCC Pin SENSE Pin TIMER Pin ON Pin GATE Pin SDA Pin, SCL Pin A0 Pin, A1 Pin Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering, 10 sec) Junction Temperature Stresses above ...
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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 ADM1176 ...
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ADM1176 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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V (V) CC Figure 10. Gate Pull-Down Current vs. Supply Voltage –2 –4 –6 –8 –10 –12 – ...
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ADM1176 0 –1 –2 –3 –4 –5 – (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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V (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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ADM1176 –1 –2 –3 –4 0 500 1000 1500 2000 2500 CODE Figure 28. INL for ADC –1 –2 –3 –4 3000 3500 4000 Rev Page ...
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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 connector ...
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ADM1176 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 ...
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When the initial timing cycle terminates, the device is ready to start a hot swap operation (assuming that the ON pin is asserted). In the example shown in Figure 30, the ON pin is asserted at the same time that ...
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ADM1176 VOLTAGE AND CURRENT READBACK In addition to providing hot swap functionality, the ADM1176 contains the components to allow voltage and current readback 2 over bus. The voltage output of the current sense amplifier and the voltage ...
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Base Address A1 Pin State A0 Pin State Floating High High Ground High Resistor to ground High Floating High High don’t care. 1 SCL 1 0 SDA 0 A1A START BY MASTER FRAME 1 SLAVE ADDRESS 1 ...
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ADM1176 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 ADM1176 are discussed in this section. Table 6 shows the abbreviations used in the ...
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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. The ...
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ADM1176 READ VOLTAGE AND/OR CURRENT DATA BYTES Depending on how the device is configured, ADM1176 can be set up to provide information in three ways after a conversion (or conversions): voltage and current readback, voltage only readback, and current only ...
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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 the ...
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ADM1176 APPLICATIONS INFORMATION APPLICATIONS WAVEFORMS CH1 1.5A CH2 1.00V M40.0ms CH3 20.0V CH4 10.0V Figure 41. Inrush Current Control into 220 μF Load (Channel Channel Channel 3 = ...
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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 a ...
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... Hot Swap Retry Option 1 ADM1176-1ARMZ-R7 Automatic Retry Version ADM1176-2ARMZ-R7 1 Latched Off Version 1 EVAL-ADM1176EBZ RoHS Compliant Part. 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 system, provided that the system conforms to the I © ...