FM50_04 Datasheet, PDF (1/8 Pages) Fairchild Semiconductor – Analog Temperature Sensor

FM50
Analog Temperature Sensor
www.fairchildsemi.com
Features
• Analog output: 10 mV/°C
• Range: -40 to 125°C range:
• Accuracy: ±2°C at 25°C
• Supply Current, 170 µA max.
• Output Drive, 25 µA
• Self-heating < 0.1°C
• Operating Voltage: +2.4V to +6V
Applications
• Mobile Phones
• Computers
• Battery Management
• Office Equipment
• HVAC
• Power Supply Modules
• Disk Drives
• Automotive
Description
As a precision CMOS temperature sensor, the FM50 is
cost-effective for accurate low-power temperature monitor-
ing applications. Output voltage versus temperature is
extremely linear. With no load, the supply current is
typically 130µA. For normal operation, the load on VOUT
should be 100KΩ or less.
In a typical application, a remotely mounted FM50 is
monitored by a microcontroller with an analog A/D
converter input. Alternatively, the FM50 can drive a
comparator with a high impedance input.
Accuracy is typically ± 0.5°C at room temperature; and
better than ±2°C from 0 to 75°C.
Available in both standard and Lead Free 3-pin SOT-23
package.
Thermal Response
V_OUT (mV)
1750
750
500
100
-50 -40 -25
0
25
50
75
Temperature ( C)
Temperature ( C) = ^{VOUT - 500 mV}
10 mV/ C
100
125
FM50 Output Voltage vs. Temperature
REV. 1.1.0 10/5/04