ADT7483AARQZ-R7 ON Semiconductor, ADT7483AARQZ-R7 Datasheet - Page 2

• Manufacturer Part Number: ADT7483AARQZ-R7
• Description: IC TEMP SENSOR/ALARM 2CH 16-QSOP
• Manufacturer: ON Semiconductor

Specifications of ADT7483AARQZ-R7

• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Full Temp Accuracy: +/- 2.5 C
• Digital Output - Bus Interface: Serial (2-Wire)
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADT7483A
TABLE OF CONTENTS
Features...............................................................................................1
Applications .......................................................................................1
General Description..........................................................................1
Functional Block Diagram...............................................................1
Revision History................................................................................2
Specifications .....................................................................................2
Absolute Maximum Ratings ............................................................5
Pin Configuration and Function Descriptions .............................6
Typical Performance Characteristics..............................................7
Theory of Operation.........................................................................9
REVISION HISTORY
02/08—Rev 1: Conversion to ON Semiconductor
07/05—Revision 0: Initial Version
SMBus Timing Specifications......................................................4
Thermal Characteristics...............................................................5
ESD Caution ..................................................................................5
Temperature Measurement Method...........................................9
Temperature Measurement Results ..........................................10
Temperature Measurement Range............................................10
Temperature Data Format..........................................................10
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Applications .....................................................................................22
Outline Dimensions........................................................................24
Registers .......................................................................................11
Serial Bus Interface .....................................................................17
Addressing the Device................................................................17
ALERT Output ............................................................................19
Masking the ALERT Output .....................................................19
Low Power Standby Mode .........................................................19
Sensor Fault Detection ...............................................................20
Interrupt System..........................................................................20
Noise Filtering .............................................................................22
Factors Affecting Diode Accuracy ...........................................22
Thermal Inertia and Self-Heating ............................................22
Layout Considerations ...............................................................23
Application Circuit .....................................................................23
Ordering Guide ...........................................................................24