f75363 Feature Integration Technology Inc., f75363 Datasheet - Page 21

• Manufacturer Part Number: f75363
• Description: ?1o C Accuracy Temperature Sensor Ic With Fan Speed Control
• Manufacturer: Feature Integration Technology Inc.

F75363
9. Electrical characteristic
PARAMETER
Power Supply Voltage
9.1 Absolute Maximum Ratings
3. Use wide tracks to minimize inductance and reduce noise pickup. 10 mil track minimum width and
4. Try to minimize the number of copper/solder joints, which can cause thermocouple effects. Where
5. Place a 0.1µF bypass capacitor close to the V
6. If the distance to the remote sensor is more than 8 inches, the use of twisted pair cable is
7. Because the measurement technique uses switched current sources, excessive cable and/or filter
spacing is recommended.
copper/solder joints are used, make sure that they are in both the D+ and D- path and at the same
temperature. Thermocouple effects should not be a major problem as 1
200µV. It means that a copper-solder thermocouple exhibits 3µV/℃, and takes about 200µV of the
voltage error at D+ & D- to cause a 1℃ measurement error. Adding a few thermocouples causes a
negligible error.
2200pF input filter capacitors across D+, D- close to the F75363.
recommended. It will work up to around 6 to 12 feet.
capacitance will affect the measurement accuracy. When using long cables, the filter capacitor may
be reduced or removed. Cable resistance can also induce errors. 1 Ω series resistance introduces
about 0.5
℃
error.
MINIMUM
10MILS
10MILS
-0.5 to 5.5
RATING
-17-
DD
pin. In very noisy environments, place an external
GND
DXP
DXN
GND
℃
10MILS
10MILS
corresponds to about
UNIT
V
F75363
July, 2007
V0.27P