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ADM1032ARMZ-2R データシート(PDF) 3 Page - ON Semiconductor |
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ADM1032ARMZ-2R データシート(HTML) 3 Page - ON Semiconductor |
3 / 18 page ADM1032 http://onsemi.com 3 Table 3. PIN ASSIGNMENT Pin No. Mnemonic Description 1 VDD Positive Supply, 3.0 V to 5.5 V. 2 D+ Positive Connection to Remote Temperature Sensor. 3 D− Negative Connection to Remote Temperature Sensor. 4 THERM THERM is an open-drain output that can be used to turn a fan on/off or throttle a CPU clock in the event of an overtemperature condition. Requires pullup to VDD, the same supply as the ADM1032. Note: Please refer to Power Sequencing Considerations; THERM Pin Pullup on page 15 for more information. 5 GND Supply Ground Connection. 6 ALERT Open-Drain Logic Output Used as Interrupt or SMBus Alert. 7 SDATA Logic Input/Output, SMBus Serial Data. Open-drain output. Requires pullup resistor. 8 SCLK Logic Input, SMBus Serial Clock. Requires pullup resistor. Table 4. ELECTRICAL CHARACTERISTICS Parameter Conditions Min Typ Max Unit Power Supply Supply Voltage, VDD 3.0 3.30 5.5 V Average Operating Supply Current, ICC 0.0625 Conversions/Sec Rate (Note 1) − 170 215 mA Standby Mode − 5.5 10 mA Undervoltage Lockout Threshold VDD Input, Disables ADC, Rising Edge 2.35 2.55 2.8 V Power-On Reset Threshold 1.0 − 2.4 V Temperature-To-Digital Converter Local Sensor Accuracy 0 ≤ TA ≤ 100°C, VCC = 3 V to 3.6 V − ±1 ±3 °C Resolution − 1.0 − °C Remote Diode Sensor Accuracy 60°C ≤ TD ≤ 100°C, VCC = 3 V to 3.6 V 0°C ≤ TD ≤ 120°C − − − − ±1 ±3 °C Resolution − 0.125 − °C Remote Sensor Source Current High Level (Note 2) Low Level (Note 2) − − 230 13 − − mA Conversion Time From stop bit to conversion complete Both channels: one-shot mode with averaging switched on One-shot mode with averaging off (that is, conversion rate = 32 or 64 conversions per second) 35.7 5.7 − − 142.8 22.8 ms Open-Drain Digital Outputs (THERM, ALERT) Output Low Voltage, VOL IOUT = −6.0 mA (Note 2) − − 0.4 V High Level Output Leakage Current, IOH VOUT = VDD (Note 2) − 0.1 1.0 mA Serial Bus Timing (Note 2) Logic Input High Voltage, VIH SCLK, SDATA VDD = 3.0 V to 5.5 V 2.1 − − V Logic Input Low Voltage, VIL VDD = 3.0 V to 5.5 V − − 0.8 V Hysteresis SCLK, SDATA − 500 − mV SDATA Output Low Sink Current SDATA Forced to 0.6 V 6.0 − − mA ALERT Output Low Sink Current ALERT Forced to 0.4 V 1.0 − − mA Logic Input Current, IIH, IIL −1.0 − +1.0 mA Input Capacitance, SCLK, SDATA − 5.0 − pF |
同様の部品番号 - ADM1032ARMZ-2R |
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同様の説明 - ADM1032ARMZ-2R |
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