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MAX6649 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX6649 Datasheet(HTML) 2 Page - Maxim Integrated Products |
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2 / 16 page  +145°C Precision SMBus-Compatible Remote/ Local Sensors with Overtemperature Alarms 2 ABSOLUTE MAXIMUM RATINGS Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. All Voltages Referenced to GND VCC ...........................................................................-0.3V to +6V DXP.............................................................-0.3V to (VCC + 0.3V) DXN .......................................................................-0.3V to +0.8V SCLK, SDA, ALERT, OVERT.....................................-0.3V to +6V SDA, ALERT, OVERT Current .............................-1mA to +50mA DXN Current .......................................................................±1mA Continuous Power Dissipation (TA = +70°C) μMAX (derate 4.8mW/°C above +70°C) ...................387.8mW ESD Protection (all pins, Human Body Model) ................±2000V Junction Temperature ......................................................+150°C Operating Temperature Range .........................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C Soldering Temperature (reflow) .......................................+260°C Lead Temperature (soldering, 10s) .................................+300°C ELECTRICAL CHARACTERISTICS (VCC = 3.0V to 5.5V, TA = -55°C to +125°C, unless otherwise specified. Typical values are at VCC = 3.3V and TA = +100°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage VCC 3.0 5.5 V 0.125 °C Temperature Resolution 11 Bits VCC = 3.3V, TA = +100°C, TRJ = +60°C to +145°C -1.0 +1.0 VCC = 3.3V, TA = +60°C to +100°C, TRJ = +25°C to +145°C -1.6 +1.6 Remote Temperature Error VCC = 3.3V, TA = +0°C to +100°C, TRJ = +0°C to +145°C -3.2 +3.2 °C TA = +60°C to +100°C -2.0 +2.0 Local Temperature Error VCC = 3.3V TA = 0°C to +125°C -3.0 +3.0 °C Supply Sensitivity of Temperature Error ±0.2 °C/V Undervoltage Lockout (UVLO) Threshold UVLO Falling edge of VCC disables ADC 2.4 2.7 2.95 V UVLO Hysteresis 90 mV Power-On-Reset (POR) Threshold VCC falling edge 2.0 V POR Threshold Hysteresis 90 mV Standby Supply Current SMBus static 3 12 μA Operating Current During conversion 0.08 mA 0.25 conversions per second 40 80 Average Operating Current 2 conversions per second 250 400 μA Conversion Time tCONV From stop bit to conversion completion 95 125 156 ms Conversion Time Error -25 +25 % DXP and DXN Leakage Current Standby mode 100 nA High level 80 100 120 Remote-Diode Source Current IRJ Low level 8 10 12 μA |
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