ADM1029ARQZ-R7(2012) データシートの表示（PDF） - ON Semiconductor

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ADM1029ARQZ-R7
(Rev.:2012)

Dual PWM Fan Controller and Temperature Monitor for High Availability Systems

ON Semiconductor 

ADM1029

Table 4. ELECTRICAL CHARACTERISTICS (TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted. (Note 1 and 2))

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

POWER SUPPLY

Supply Voltage, VCC

Supply Current, ICC

Interface Inactive, ADC Active

ADC Inactive, DAC Active

Shutdown Mode

3.0

3.3

5.5

V

−

1.7

3.0

mA

−

1.5

−

mA

−

10

60

mA

TEMPERATURE-TO-DIGITAL CONVERTER

Internal Sensor Accuracy

Resolution

External Diode Sensor Accuracy

Resolution

0C < TD < 100C

−

1.0

3.0

C

−

1.0

−

C

−

3.0

5.0

C

−

1.0

−

C

Remote Sensor Source Current

High Level

Low Level

−

90

−

mA

−

5.5

−

ANALOG-TO-DIGITAL CONVERTER

Total Unadjusted Error, TUE (Note 3)

Differential Non-linearity, DNL

Power Supply Sensitivity

−

−

1.0

%

−

−

1.0

LSB

−

1.0

−

%/V

Conversion Time

Analog Input or Internal Temperature

External Temperature

ms

−

11.6

−

−

185.6

−

FAN RPM-TO-DIGITAL CONVERTER

Accuracy

Full-scale Count

60C  TA  100C: VCC = 3.3 V

−

−

6

%

−

−

255

Fan 1 to Fan 2 Nominal Input RPM (Note 4)

Divisor = 1, Fan Count = 153

Divisor = 2, Fan Count = 153

Divisor = 4, Fan Count = 153

Divisor = 8, Fan Count = 153

−

8800

−

RPM

−

4400

−

−

2200

−

−

1100

−

Internal Clock Frequency

56.4

60.0

63.6

kHz

OPEN-DRAIN DIGITAL OUTPUTS (INT, CFAULT)

Output Low Voltage, VOL

IOUT = −6.0 mA, VCC = 3 V

High Level Output Current, IOH

VOUT = VCC

OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA)

−

−

0.4

V

−

0.1

1.0

mA

Output Low Voltage, VOL

High Level Output Leakage Current, IOH

SERIAL BUS DIGITAL INPUTS (SCL, SDA)

IOUT = –6.0 mA, VCC = 3 V

VOUT = VCC

−

−

0.4

V

−

0.1

1.0

mA

Input High Voltage, VIH

Input Low Voltage, VIL

Hysteresis

2.1

−

−

V

−

−

0.8

V

−

500

−

mV

DIGITAL INPUT LOGIC LEVELS (RESET, GPIO1−6, FAULT1/2, TACH1/2, PRESENT1/2)

Input High Voltage, VIH

Input Low Voltage, VIL

DIGITAL INPUT CURRENT

2.1

−

−

V

−

−

0.8

V

Input High Current, IIH

Input Low Current, IIL

Input Capacitance, CIN

SERIAL BUS TIMING (Note 5)

VIN = VCC

VIN = 0

–1.0

−

−

mA

−

−

1.0

mA

−

20

−

pF

Clock Frequency, fSCLK

Glitch Immunity, tSW

See Figure 2 for All Parameters.

10

−

100

kHz

−

50

−

ns

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