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MAX6678ATP90 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX6678ATP90 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 19 page 2-Channel Temperature Monitor with Dual Automatic PWM Fan-Speed Controller and Five GPIOs 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VCC = +3.0V to +5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VCC = +3.3V, TA = +25°C.) 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. VCC to GND ..............................................................-0.3V to +6V OT, SMBDATA, SMBCLK, PWMOUT_, GPIO_ to GND ......................................................-0.3V to +6V DXP_ to GND ..........................................-0.3V to + (VCC + 0.3V) DXN to GND ..........................................................-0.3V to +0.8V PRESET_ to GND ....................................-0.3V to + (VCC + 0.3V) SMBDATA, OT, PWMOUT_ Current....................-1mA to +50mA DXN Current .......................................................................±1mA ESD Protection (all pins, Human Body Model) ..................2000V Continuous Power Dissipation (TA = +70°C) 20-Pin QSOP (derate 9.1mW/°C above +70°C).......... 727mW 20-Pin TQFN (derate 34.5mW/°C above +70°C) .......2759mW Operating Temperature Range .........................-40°C to +125°C Junction Temperature ......................................................+150°C Storage Temperature Range ............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Supply Voltage Range VCC +3.0 +5.5 V Operating Current IS Interface inactive, ADC active 0.5 1 mA +25°C ≤ TR ≤ +125°C, TA = 60°C ±1 VCC = 3.3V 0°C ≤ TR ≤ +145°C, +25°C ≤ TA ≤ +100°C ±3 External Temperature Error, VCC = 3.3V 0°C ≤ TR ≤ +145°C, 0°C ≤ TA ≤ +125°C ±4 °C +25°C ≤ TR ≤ +100°C ±2.5 Internal Temperature Error VCC = +3.3V 0°C ≤ TA ≤ +125°C ±4 °C 1°C Temperature Resolution 8 Bits Conversion Time 200 250 300 ms PWM Frequency Tolerance (Note 1) -20 +20 % High level 80 100 120 Remote-Diode Sourcing Current Low level 8 10 12 µA DXN Source Voltage 0.7 V DIGITAL INPUTS AND OUTPUTS Output Low Voltage (Sink Current) ( OT, GPIO_, SMBDATA, PWMOUT_) VOL IOUT = 6mA 0.4 V Output High Leakage Current ( OT, GPIO_, SMBDATA, PWMOUT_) IOH 1µA VCC = 3V to 3.6V 0.8 Logic-Low Input Voltage (SMBDATA, SMBCLK, PRESET_, GPIO_) VIL VCC = 3.6V to 5.5V 0.8 V VCC = 3V to 3.6V 2.1 Logic-High Input Voltage (SMBDATA, SMBCLK, PRESET_, GPIO_) VIH VCC = 3.6V to 5.5V 2.1 V Input Leakage Current 1µA Input Capacitance CIN 5pF SMBus TIMING Serial Clock Frequency fSCLK 100 kHz |
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