ADT7461ON-CHIPCONVERSION RATEADDRESS POINTERTEMPERATUREREGISTERREGISTERSENSORLOCAL TEMPERATURELOCAL TEMPERATUREVALUE REGISTERLOW LIMIT REGISTERLOCAL TEMPERATUREANALOGHIGH LIMIT REGISTERADCAL MUXLIMITMUXCOMPARATORREMOTE TEMPERATUREBUSYRUN/STANDBYDIGITLOW LIMIT REGISTERD+AL MUX2REMOTE TEMPERATUREREMOTE TEMPERATURESRCVALUE REGISTERHIGH LIMIT REGISTERBLOCKDIGITD−3LOCAL THERM LIMITREGISTERREMOTE OFFSETEXTERNAL THERM LIMITREGISTERREGISTERCONFIGURATIONREGISTEREXTERNAL DIODE OPEN-CIRCUITINTERRUPTSTATUS REGISTERMASKINGADT7461SMBUS INTERFACE157846VDDGNDSDATASCLKTHERMALERT/THERM2Figure 1. Functional Block DiagramTable 1. ABSOLUTE MAXIMUM RATINGSParameterRatingUnit Positive Supply Voltage (VDD) to GND −0.3, +5.5 V D+ −0.3 to VDD + 0.3 V D− to GND −0.3 to +0.6 V SCLK, SDATA, ALERT −0.3 to +5.5 V THERM −0.3 to VDD + 0.3 V Input Current, SDATA, THERM −1, +50 mA Input Current, D− ±1 mA ESD Rating, All Pins (Human Body Model) 2000 V Maximum Junction Temperature (TJ Max) 150 °C Storage Temperature Range −65 to +150 °C IR Reflow Peak Temperature 220 °C IR Reflow Peak Temperature for Pb-Free 260 (±0.5) °C Lead Temperature (Soldering 10 sec) 300 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. NOTE: This device is ESD sensitive. Use standard ESD precautions when handling. Table 2. THERMAL CHARACTERISTICSPackage TypeqJAUnit 8-lead SOIC NB Package 121 °C/W 8-lead MSOP Package 142 °C/W http://onsemi.com2