ADT7476ARQZ ON Semiconductor, ADT7476ARQZ Datasheet - Page 7

• Manufacturer Part Number: ADT7476ARQZ
• Description: IC REMOTE THERMAL CTRLR 24QSOP
• Manufacturer: ON Semiconductor
• Series: dBCool®r

Specifications of ADT7476ARQZ

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Fan Speed Counter, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-QSOP
• Full Temp Accuracy: +/- 0.5 C
• Digital Output - Bus Interface: Serial (3-Wire, 4-Wire)
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.20
1.18
1.16
1.14
1.12
1.10
1.08
1.06
1.04
1.02
1.00
0.98
–10
–20
–30
–40
–50
–60
Figure 3. Temperature Error vs. Capacitance
30
25
20
15
10
–5
0
5
0
3.0
0
Figure 7. Normal I
0
Figure 5. Remote Temperature Error vs.
2
Common−Mode Noise Frequency
100M
3.1
4
Between D+ and D−
6
200M
NOISE FREQUENCY (Hz)
3.2
CAPACITANCE (nF)
8
DD
10
V
DD
300M
3.3
vs. Power Supply
(V)
12
40mV
14
400M
3.4
100mV
16
60mV
18
500M
TYPICAL CHARACTERISTICS
3.5
20
600M
22
3.6
http://onsemi.com
7
–10
–15
15
10
–5
–10
–20
–30
–40
–10
5
0
Figure 8. Internal Temperature Error vs. Power
30
20
10
70
60
50
40
30
20
10
Figure 4. Remote Temperature Error vs. PCB
0
0
0
0
0
100mV
Figure 6. Remote Temperature Error vs.
Differential−Mode Noise Frequency
100M
D+ TO GND
D+ TO V
100M
20
Supply Noise Frequency
40mV
CC
LEAKAGE RESISTANCE (M )
200M
200M
NOISE FREQUENCY (Hz)
FREQUENCY (Hz)
Resistance
40
300M
300M
60mV
250mV
100mV
60
400M
400M
W
500M
80
500M
600M
600M
100