Datasheet ADT7420 (Analog Devices) - 6

ADT7420 Data Sheet ABSOLUTE MAXIMUM RATINGS Table 3.
Stresses at or above those listed under Absolute Maximum
Parameter Rating
Ratings may cause permanent damage to the product. This is a VDD to GND −0.3 V to +7 V stress rating only; functional operation of the product at these SDA Voltage to GND −0.3 V to VDD + 0.3 V or any other conditions above those indicated in the operational SCL Output Voltage to GND −0.3 V to VDD + 0.3 V section of this specification is not implied. Operation beyond A0 Input Voltage to GND −0.3 V to VDD + 0.3 V the maximum operating conditions for extended periods may A1 Input Voltage to GND −0.3 V to VDD + 0.3 V affect product reliability. CT and INT Output Voltage to GND −0.3 V to VDD + 0.3 V ESD Rating (Human Body Model) 2.0 kV
ESD CAUTION
Operating Temperature Range1 −40°C to +150°C Storage Temperature Range −65°C to +160°C Maximum Junction Temperature, TJMAX 150°C 16-Lead LFCSP (CP-16-17) Power Dissipation2 W 3 MAX = (TJMAX − TA )/θJA Thermal Impedance4 θJA, Junction-to-Ambient (Still Air) 37°C/W θJC, Junction-to-Case 33°C/W IR Reflow Soldering 220°C Peak Temperature (RoHS-Compliant 260°C (+0°C/−5°C) Package) Time at Peak Temperature 20 sec to 40 sec Ramp-Up Rate 3°C/sec maximum Ramp-Down Rate −6°C/sec maximum Time from 25°C to Peak Temperature 8 minutes maximum 1 Sustained operation above 125°C results in a shorter product lifetime. For more information, contact Analog Devices. 2 Values relate to package being used on a standard 2-layer PCB. This gives a worst-case θJA and θJC. 3 TA = ambient temperature. 4 Junction-to-case resistance is applicable to components featuring a preferential flow direction, for example, components mounted on a heat sink. Junction-to-ambient is more useful for air-cooled, PCB-mounted components. Rev. A | Page 6 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS I2C TIMING SPECIFICATIONS Timing Diagram ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER DETAILS NORMAL MODE ONE-SHOT MODE CT and INT Operation in One-Shot Mode 1 SPS MODE SHUTDOWN FAULT QUEUE TEMPERATURE DATA FORMAT TEMPERATURE CONVERSION FORMULAS 16-Bit Temperature Data Format 13-Bit Temperature Data Format 10-Bit Temperature Data Format 9-Bit Temperature Data Format REGISTERS ADDRESS POINTER REGISTER TEMPERATURE VALUE REGISTERS STATUS REGISTER CONFIGURATION REGISTER THIGH SETPOINT REGISTERS TLOW SETPOINT REGISTERS TCRIT SETPOINT REGISTERS THYST SETPOINT REGISTER ID REGISTER SERIAL INTERFACE SERIAL BUS ADDRESS WRITING DATA READING DATA RESET GENERAL CALL INT AND CT OUTPUTS UNDERTEMPERATURE AND OVERTEMPERATURE DETECTION Comparator Mode Interrupt Mode APPLICATIONS INFORMATION THERMAL RESPONSE TIME SUPPLY DECOUPLING POWERING FROM A SWITCHING REGULATOR TEMPERATURE MEASUREMENT QUICK GUIDE TO MEASURING TEMPERATURE OUTLINE DIMENSIONS ORDERING GUIDE