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ADT7470ARQZ Arkusz danych(PDF) 3 Page - Analog Devices |
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ADT7470ARQZ Arkusz danych(HTML) 3 Page - Analog Devices |
3 / 40 page Data Sheet ADT7470 Rev. E | Page 3 of 40 SPECIFICATIONS TA = −40oC to +125oC, VCC = 3.0 V to 5.5 V, unless otherwise noted. Table 1. Parameter1, 2, 3, 4, 5 Min Typ Max Unit Test Conditions/Comments POWER SUPPLY1 Supply Voltage 3.0 3.3 5.5 V Supply Current, ICC 0.5 0.8 mA Standby Current, ICC 4 µA FAN RPM-TO-DIGITAL CONVERTER Accuracy ±12 % Full-Scale Count 65,535 Nominal Input RPM 109 RPM Fan count = 0xBFFF 329 RPM Fan count = 0x3FFF 5,000 RPM Fan count = 0x0438 10,000 RPM Fan count = 0x021C OPEN-DRAIN DIGITAL OUTPUTS, PWM1 to PWM4, SMBALERT Output Low Voltage, VOL 0.4 V IOUT = –8.0 mA, VCC = +3.3 V High Level Output Current, IOH 0.1 1 µA VOUT = VCC OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA) Output Low Voltage, VOL 0.4 V IOUT = –4.0 mA, VCC = +3.3 V High Level Output Current, IOH 0.1 1 µA VOUT = VCC SMBus DIGITAL INPUTS (SCL, SDA) Input High Voltage, VIH 2.4 V Input Low Voltage, VIL 1.0 V VCC = 3.3 V Hysteresis 500 mV DIGITAL INPUT LOGIC LEVELS (TACH INPUTS, FULL_SPEED, GPIO) Input High Voltage, VIH 2.4 V Input Low Voltage, VIL 0.8 V Hysteresis 50 mV p-p DIGITAL INPUT LOGIC LEVELS (TMP_IN) Input High Voltage, VIH VDD – 0.3 V Input Low Voltage, VIL 0.4 V DIGITAL INPUT CURRENT Input High Current, IIH –5 µA VIN = VCC Input Low Current, IIL 5 µA VIN = 0 Input Capacitance, CIN 5 pF 1 VDD should never be floated in the presence of SCL/SDA activity. Charge injection can be sufficient to induce approximately 0.6 V on VDD. 2 All voltages are measured with respect to GND, unless otherwise specified. 3 Typical values are at %A = 25 °C and represent the most likely parametric norm. 4 Logic inputs accept input high voltages up to 5 V even when the device is operating at supply voltages below 5 V. 5 Timing specifications are tested at logic levels of VIL = 0.8 V for a falling edge and VIH = 2.0 V for a rising edge. |
Podobny numer części - ADT7470ARQZ |
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Podobny opis - ADT7470ARQZ |
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