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LM96000 Datasheet(PDF) 5 Page - National Semiconductor (TI) |
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LM96000 Datasheet(HTML) 5 Page - National Semiconductor (TI) |
5 / 28 page DC Electrical Characteristics (Continued) The following specifications apply for V+ = 3.0V to 3.6V, and all analog input source impedance R S =50 Ω unless otherwise specified in conditions. Boldface limits apply for T A =TJ over TMIN =0˚C to TMAX=85˚C; all other limits TA =TJ= 25˚C. TA is the ambient temperature of the LM96000; T J is the junction temperature of the LM96000; TD is the thermal diode junction tem- perature. Symbol Parameter Conditions Typical (Note 7) Limits (Note 8) Units (Limits) Input Resistance, all analog inputs 210 140 k Ω (min) 400 k Ω (max) DIGITAL OUTPUT: PWM1, PWM2, PWM3, XTESTOUT I OL Logic Low Sink Current V OL=0.4V 8 mA (min) V OL Logic Low Level I OUT =+8 mA 0.4 V (max) SMBUS OPEN-DRAIN OUTPUT: SMBDAT V OL Logic Low Output Voltage I OUT =+4 mA 0.4V V (max) I OH High Level Output Current V OUT = V+ 0.1 10 µA (max) SMBUS INPUTS: SMBCLK. SMBDAT V IH Logic Input High Voltage 2.1 V (min) V IL Logic Input Low Voltage 0.8 V (max) V HYST Logic Input Hysteresis Voltage 300 mV DIGITAL INPUTS: ALL V IH Logic Input High Voltage 2.1 V (min) V IL Logic Input Low Voltage 0.8 V (max) V TH Logic Input Threshold Voltage 1.5 V I IH Logic High Input Current V IN = V+ 0.005 10 µA (max) I IL Logic Low Input Current V IN = GND −0.005 −10 µA (max) C IN Digital Input Capacitance 20 pF AC Electrical Characteristics The following specifications apply for V+ = 3.0V to 3.6V unless otherwise specified in conditions. Boldface limits apply for T A =T J over TMIN =0˚C to TMAX=85˚C; all other limits TA =TJ= 25˚C. Symbol Parameter Conditions Typical (Note 7) Limits (Note 8) Units (Limits) TACHOMETER ACCURACY Fan Count Accuracy ±10 % (max) Fan Full-Scale Count 65536 (max) Fan Counter Clock Frequency 90 kHz Fan Count Conversion Time 0.7 1.4 sec (max) FAN PWM OUTPUT Frequency Setting Accuracy ±10 % (max) Frequency Range 10 30 Hz kHz Duty-Cycle Range Low frequency range 0to100 % (max) Duty-Cycle Resolution (8-bits) 0.390625 % Spin-Up Time Interval Range 100 4000 ms ms Spin-Up Time Interval Accuracy ±10 % (max) SPIKE SMOOTHING FILTER Time Interval Deviation ±10 % (max) Time Interval Range 35 0.8 sec sec SMBUS TIMING CHARACTERISTICS f SMB SMBus Operating Frequency 10 100 kHz (min) kHz (max) www.national.com 5 |
Número de pieza similar - LM96000 |
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Descripción similar - LM96000 |
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