ADT7467ARQZ-FEEL datasheet(4/72 Pages) ONSEMI

Part #	ADT7467ARQZ-FEEL

Description	Remote Thermal Monitor and Fan Controller

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ADT7467

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Table 3. ELECTRICAL SPECIFICATIONS (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

3.0

3.3

5.5

V

Supply Current, ICC

Interface Inactive, ADC Active

Standby Mode

−

3

20

mA

TEMPERATURE-TO-DIGITAL CONVERTER

Local Sensor Accuracy

0C  TA  70C

−40C  TA  +100C

−40C  TA  +120C

−

−3.5

−4

−

1.5

+2

C

Resolution

−

0.25

−

C

Remote Diode Sensor Accuracy

0C  TA  70C; 0C  TD  120C

0C  TA  105C; 0C  TD  120C

−40C  TA  +120C; 0C  TD  +120C

−

−3.5

−4.5

0.5

−

1.5

+2

C

Resolution

−

0.25

−

C

Remote Sensor Source Current

First Current

Second Current

Third Current

−

6

36

96

−

mA

ANALOG-TO-DIGITAL CONVERTER (INCLUDING MUX AND ATTENUATORS)

Total Unadjusted Error (TUE)

−

1.5

%

Differential Nonlinearity (DNL)

8 Bits

−

1

LSB

Power Supply Sensitivity

−

0.1

−

%/V

Conversion Time (Voltage Input)

Averaging Enabled

−

11

−

ms

Conversion Time (Local Temperature)

Averaging Enabled

−

12

−

ms

Conversion Time (Remote Temperature)

Averaging Enabled

−

38

−

ms

Total Monitoring Cycle Time

Averaging Enabled

Averaging Disabled

−

145

19

−

ms

Input Resistance

For VCC Channel

For All Channels other than VCC

40

80

140

100

200

kW

FAN RPM-TO-DIGITAL CONVERTER

Accuracy

0C  TA  70C, 3.3 V

−40C  TA  +120C, 3.3 V

−40C  TA  +120C, 5.5 V

−

5

7

10

%

Full-scale Count

−

65,535

Nominal Input RPM

Fan Count = 0xBFFF

Fan Count = 0x3FFF

Fan Count = 0x0438

Fan Count = 0x021C

−

109

329

5000

10,000

−

RPM

Internal Clock Frequency

0C  TA  70C, VCC = 3.3 V

−40C  TA  +120C, VCC = 3.3 V

85.5

83.7

90

94.5

96.3

kHz

Internal Clock Frequency

*40C  TA  +120C, VCC = 5.5 V

81

90

99

kHz

OPEN-DRAIN DIGITAL OUTPUTS, PWM1 to PWM3, XTO

Current Sink, IOL

−

8.0

mA

Output Low Voltage, VOL

IOUT = *8.0 mA, VCC = 3.3 V

−

0.4

V

High Level Output Current, IOH

VOUT = VCC

−

0.1

1.0

mA

OPEN-DRAIN SERIAL DATA BUS OUTPUT (SDA)

Output Low Voltage, VOL

IOUT = *4.0 mA, VCC = 3.3 V

−

0.4

V

High Level Output Current, IOH

VOUT = VCC

−

0.1

1.0

mA

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