ADT7461AARMZ-2REEL ON Semiconductor, ADT7461AARMZ-2REEL Datasheet
ADT7461AARMZ-2REEL
Specifications of ADT7461AARMZ-2REEL
Related parts for ADT7461AARMZ-2REEL
ADT7461AARMZ-2REEL Summary of contents
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ADT7461A +15C Temperature Monitor with Series Resistance Cancellation The ADT7461A is a dual−channel digital thermometer and undertemperature/overtemperature alarm, intended for use in PCs and thermal management systems pin− and register−compatible with the ADM1032 and ADT7461. A feature of ...
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ON−CHIP CONVERSION RATE TEMPERATURE REGISTER SENSOR LOCAL TEMPERATURE VALUE REGISTER A−TO− ANALOG CONVERTER MUX D– 3 BUSY RUN/STANDBY REMOTE TEMPERATURE VALUE REGISTER REMOTE OFFSET REGISTER EXTERNAL DIODE OPEN−CIRCUIT ADT7461A GND DD ABSOLUTE MAXIMUM RATINGS Parameter ...
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PIN ASSIGNMENT Pin No. Mnemonic 1 V Positive Supply Positive Connection to Remote Temperature Sensor. 3 D− Negative Connection to Remote Temperature Sensor. 4 THERM Open−Drain Output. Can be used to turn ...
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ELECTRICAL CHARACTERISTICS Parameter Power Supply Supply Voltage Average Operating Supply Current Undervoltage Lockout Threshold Power−On−Reset Threshold Temperature−To−Digital Converter Local Sensor Accuracy Resolution Remote Diode Sensor Accuracy Resolution Remote Sensor Source Current Conversion Time Maximum Series Resistance ...
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DEV 1 DEV 8 DEV 15 3.0 DEV 2 DEV 9 DEV 16 DEV 3 DEV 10 MEAN DEV 4 DEV 11 HIGH 4 R 2.5 R DEV 5 DEV 12 LOW 4 DEV 6 DEV 13 2.0 DEV ...
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DEV 4 3.6 3.4 3.2 3.0 3.0 3.1 3.2 3.3 3.4 V (V) DD Figure 9. Standby Supply Current vs. Voltage 25 20 100mV 15 10 50mV 5 20mV 0 0 100 200 300 400 NOISE ...
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Differences between the ADT7461A and the ADT7461 Although the ADT7461A is pin− and register−compatible with the ADT7461, there are some specification differences between the two devices. A summary of these differences is shown below in Table 1. Table 1. Differences ...
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This amplifies and rectifies the waveform to produce a dc voltage proportional to DV The ADC digitizes this voltage producing a temperature measurement. To reduce the effects of noise, digital filtering is performed by averaging the results of ...
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Table 3. Temperature Data Format (Temperature High Byte) Temperature Binary Offset Binary (Note 1) –55°C 0 000 0000 (Note 2) 0°C 0 000 0000 +1°C 0 000 0001 +10°C 0 000 1010 +25°C 0 001 1001 +50°C 0 011 0010 ...
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Conversion Rate Register The conversion rate register is Address 0x04 at read and Address 0x0A at write. The lowest four bits of this register are used to program the conversion rate by dividing the internal oscillator clock ...
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Table 6. Status Register Bit Assignments Bit Name Function 7 BUSY 1 when ADC is converting 6 LHIGH 1 when local high temperature limit is (Note 1) tripped 5 LLOW 1 when local low temperature limit is (Note 1) tripped ...
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Table 9. List of Registers Read Address (Hex) Write Address (Hex) Not Applicable Not Applicable 00 Not Applicable 01 Not Applicable 02 Not Applicable Not Applicable Note 1) ...
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When all data bytes have been read or written, stop conditions are established. In write ...
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When reading data from a register there are two possibilities. • If the address pointer register value of the ADT7461A is unknown or not the desired value first necessary to set it to the correct value before data ...
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Sensor Fault Detection At its D+ input, the ADT7461A contains internal sensor fault detection circuitry. This circuit can detect situations where an external remote diode is either not connected or incorrectly connected to the ADT7461A. A simple voltage comparator trips ...
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TEMPERATURE 905C 805C 705C 605C 505C 405C 305C 1 THERM2 3 2 THERM Figure 20. Operation of the THERM and THERM2 Interrupts • When the THERM2 limit is exceeded, the THERM2 signal asserts low. • If the temperature continues to ...
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not, the thermal inertia caused by the sensor’s mass causes a lag in the response of the sensor to a temperature change. In the case of the remote sensor, this should not be a problem since it ...
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... ADT7461AARMZ−R ADT7461AARMZ−RL7 8−Lead MSOP ADT7461AARMZ−002 ADT7461AARMZ−2RL ADT7461AARMZ2RL7 †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *The “Z’’ suffix indicates Pb−Free package available. ...
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... A1 8X *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. Protected by U.S. Patents 5,195,827; 5,867,012; 5,982,221; 6,097,239; 6,133,753; 6,169,442; 7,010,440 ; other patents pending. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein ...