adm1191nbsp Analog Devices, Inc., adm1191nbsp Datasheet
adm1191nbsp
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adm1191nbsp Summary of contents
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... SENSE AMPLIFIER ALERT COMPARATOR GND Figure 1. R SENSE VCC SENSE CONTROLLER ALERTB INTERRUPT ADM1191 SDA SDA SETV SCL SCL CONV CONV A1 A0 GND Figure 2. Applications Diagram www.analog.com ©2006–2007 Analog Devices, Inc. All rights reserved. CONV SDA SCL A1 A0 ALERTB ...
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ADM1191 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 Configuration and Function Descriptions............................. ...
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SPECIFICATIONS −40°C to +85°C; typical values Table 1. Parameter VCC PIN Operating Voltage Range, V VCC Supply Current Undervoltage Lockout, V UVLO Undervoltage Lockout Hysteresis, ...
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ADM1191 Parameter SETV PIN Overcurrent Trip Threshold Overcurrent Trip Gain [V /(V − V SETV VCC SENSE Input Current, I SETVLEAK ALERTB PIN Output Low Voltage, V ALERTOL Input Current, I ALERT A0 PIN, A1 PIN Set Address to 00, ...
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ABSOLUTE MAXIMUM RATINGS Table 2. Parameter VCC Pin SENSE Pin CONV Pin SETV Pin ALERTB Pin SDA Pin, SCL Pin A0 Pin, A1 Pin Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering, 10 sec) Junction Temperature Stresses above those ...
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ADM1191 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. 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 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 ...
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ADM1191 –1 –2 –3 –4 0 500 1000 1500 2000 2500 CODE Figure 10. INL for ADC –1 –2 –3 –4 0 500 1000 1500 2000 2500 CODE Figure 11. ...
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VOLTAGE AND CURRENT READBACK The ADM1191 contains the components to allow voltage and 2 current readback over an Inter- bus. The voltage output of the current sense amplifier and the voltage on the VCC pin are fed into ...
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ADM1191 Base Address A0 Pin State Floating High High High High TIMING DIAGRAMS 1 SCL SDA A0A START BY MASTER FRAME 1 SLAVE ADDRESS 1 SCL (CONTINUED) SDA (CONTINUED) 1 SCL ...
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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 ADM1191 are discussed in the sections that follow. Table 6 shows the abbreviations used in ...
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ADM1191 WRITE EXTENDED BYTE In the write extended 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 master ...
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READ VOLTAGE AND/OR CURRENT DATA BYTES The ADM1191 can be set up to provide information in three different ways (see the Write Command Byte section). Depending on how the device is configured, the following data can be read out of ...
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ADM1191 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 ALERTB OUTPUT The ALERTB output is an open-drain pin with 30 V tolerance. This output can be used as an overcurrent flag by connecting it to the general-purpose logic input of a controller. Under normal operation, this output ...
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... C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Rights to use these components system, provided that the system conforms to the I ©2006–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 3.10 3.00 2 ...