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MAX6620ATI+ Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX6620ATI+ Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 30 page  MAX6620 Quad Linear Fan-Speed Controller 3 Maxim Integrated ELECTRICAL CHARACTERISTICS (continued) (TA = -40°C to +125°C, VCC = 3.0V to 5.5V, unless otherwise noted. Typical values are at TA = +25°C, VCC = 3.3V.) (Note 3) PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS Using 32.768kHz crystal, test at 850RPM -1 +1 Fan Control Accuracy (Note 4) Using on-chip oscillator -3 +3 % XTAL Oscillator Startup Time 2s X1 Input Threshold 0.7 V VCC 2 POR Threshold VFAN 3.5 V LOGIC (SDA, SCL, FAN_FAIL, WD_START, TACH_) Input High Voltage VIH VCC x 0.7 V Input Low Voltage VIL VCC x 0.3 V Input High Current IIH 1.0 µA Input Low Current IIL -1.0 µA Input Capacitance All digital inputs 6 pF Output High Current 100 µA Output Low Voltage IOL = 3mA 0.4 V LOGIC (DAC_START, SPIN_START, ADDR) Input High Voltage VIH VCC - 0.5 V Input Low Voltage VIL 0.5 V Input High Current IIH 1.0 µA Input Low Current IIL -1.0 µA Input Capacitance All digital inputs 6 pF I2C-COMPATIBLE TIMING (Notes 5, 6) Serial Clock Frequency fSCL 400 kHz Bus Free Time Between STOP and START Conditions tBUF 1.3 µs START Condition Hold Time tHD:STA 0.6 µs STOP Condition Setup Time tSU:STO 600 ns Clock Low Period tLOW 1.3 µs Clock High Period tHIGH 0.6 µs START Condition Setup Time tSU:STA 600 ns Data Setup Time tSU:DAT 100 ns Data Out Hold Time tDH 100 ns Data In Hold Time tHD:DAT (Note 6) 0 0.9 µs Maximum Receive SCL/SDA Rise Time tR (Note 8) 300 ns Minimum Receive SCL/SDA Rise Time tR (Note 7) 20 + 0.1 x CB ns |
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