ADM1031ARQ datasheet(5/32 Pages) AD

Il numero della parte	ADM1031ARQ

Spiegazioni elettronici	Intelligent Temperature Monitor and Dual PWM Fan Controller

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Produttore elettronici	AD [Analog Devices]

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REV. 0

–5–

Typical Performance Characteristics–ADM1031

LEAKAGE RESISTANCE – M

15

10

1

100

3.3

10

30

–5

–20

5

0

–10

–15

DXP TO GND

DXP TO VCC (3.3V)

TPC 1. Temperature Error vs. PCB Track Resistance

FREQUENCY – Hz

17

0

15

13

11

9

7

5

3

1

–1

500k

2M

4M

6M

10M

100M

400M

VIN = 100mV p-p

VIN = 200mV p-p

TPC 2. Temperature Error vs. Power Supply Noise

Frequency

FREQUENCY – Hz

–1

0

400M

100k

1M

100M

200M

300M

2

0

3

1

500M

7

6

5

4

VIN = 40mV p-p

VIN = 20mV p-p

TPC 3. Temperature Error vs. Common-Mode Noise

Frequency

PIII TEMPERATURE – C

80

0

060

10

20

30

40

50

70

60

50

30

10

40

20

70

80

90

100

110

90

110

100

TPC 4. Pentium III Temperature Measurement vs.

ADM1031 Reading

DXP – DXN CAPACITANCE – nF

–2

–10

147

2.2

3.3

4.7

10

22

–3

–5

–7

–9

–6

1

–11

–12

–13

–14

–15

–16

0

–1

–4

–8

TPC 5. Temperature Error vs. Capacitance between

D+ and D–

SCLK FREQUENCY – kHz

80

0

75

1

5

10

25

50

70

60

50

30

10

40

20

100

250

500

750 1000

90

100

110

VCC = 5V

VCC = 3.3V

TPC 6. Standby Current vs. Clock Frequency

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ON Semiconductor	ADM1031	305Kb / 30P	Intelligent Temperature Monitor and Dual PWM Fan Controller May, 2010 ??Rev. 4
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