ADM1033ARQZ-REEL(2012) Ver la hoja de datos (PDF) - ON Semiconductor

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ADM1033ARQZ-REEL
(Rev.:2012)

Thermal Monitor and Fan Speed (RPM) Controller

ON Semiconductor 

ADM1033

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

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

Power Supply

Supply Voltage, VCC (Note 2)

Supply Current, ICC

Undervoltage Lockout Threshold

Interface inactive, ADC Active

Standby Mode

3.0

3.30

3.6

V

−

−

3.0

mA

−

−

900

mA

−

2.5

−

V

Power-On Reset Threshold

1.0

−

2.4

V

Temperature-to-Digital Converter

Internal Sensor Accuracy

Resolution

External Diode Sensor Accuracy

Resolution

Remote Sensor Source Current

20C  TA  60C

−40C  TA  +100C

−

1.0

2.0

C

−4.0

−

+2.0

−

0.03125

−

C

−40C  TD  +100C; TA = +40C

−

0.5

1.0

C

−40C  TD  +100C; +20C  TA  +60C

−

1.0

1.25

−40C  TD  +100C; −40C  TA  +100C

−3.0

−

+2.0

−

0.03125

−

C

High Level

Mid Level

Low Level

−

85

−

mA

−

34

−

−

5.0

−

Series Resistance Cancellation

Power Supply Sensitivity

−

−

1000

W

−

1.0

−

%/V

Conversion Time (Local Temperature)

Averaging Enabled

−

11

−

ms

Conversion Time (Remote Temperature) Averaging Enabled

−

32

−

ms

Total Conversion Time

Averaging Enabled

−

43

−

ms

Open-Drain Digital Outputs (ALERT, THERM, FAN_FAULT, DRIVE1, DRIVE2) (Note 3)

Output Low Voltage, VOL

IOUT = −6.0 mA; VCC = +3.0 V

High Level Output Leakage Current, IOH VOUT = VCC; VCC = 3.0 V

Digital Input Leakage Current (TACH1, TACH2)

−

−

0.4

V

−

0.1

1.0

mA

Input High Current, IIH

−VIN = VCC

Input Low Current, IIL

VIN = 0

Input Capacitance, CIN

Digital Input Logic Levels (TACH1, TACH2)

−1.0

−

−

mA

−

−

1.0

mA

−

7.0

−

pF

Input High Voltage, VIH

Input Low Voltage, VIL

Hysteresis

2.0

−

5.5

V

−0.3

−

+0.8

V

−

500

−

mV p−p

Open-Drain Serial Data Bus Output (SDA)

Output Low Voltage, VOL

High Level Output Leakage Current, IOH

Serial Bus Digital Inputs (SCL, SDA)

IOUT = −6.0 mA; VCC

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

Analog Inputs (Location, REF)

Input Resistance

Tachometer Accuracy

80

125

160

kW

Fan Speed Measurement Accuracy

−

−

4.0

%

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