FM50_08 Datasheet, PDF (1/8 Pages) Fairchild Semiconductor – Analog Temperature Sensor

April 2008
FM50 — Analog Temperature Sensor
Features
ƒ Analog Output: 10mV/°C
ƒ Range: -40 to 125°C Range
ƒ Accuracy: ±2°C at 25°C
ƒ Supply Current: 170μA Maximum
ƒ Output Drive: 25μA
ƒ Self-heating: <0.1°C
ƒ Operating Voltage: +2.4V to +6V
Applications
ƒ Mobile Phones
ƒ Computers
ƒ Battery Management
ƒ Office Equipment
ƒ HVAC
ƒ Power Supply Modules
ƒ Disk Drives
ƒ Automotive
Description
As a precision CMOS temperature sensor, the FM50 is
cost effective for accurate, low-power, temperature-
monitoring 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.
FM50 is available in a 3-pin SOT-23 package.
Ordering Information
Part Number
Operating Temperature Range
FM50S3X
-40 to +125°C
All packages are lead free per JEDEC: J-STD-020B standard.
Package
3-Pin SOT-23
Packing Method
3000 Units, Tape and Reel
© 2004 Fairchild Semiconductor Corporation
FM50 • Rev. 1.1.1
Figure 1. Output Voltage vs. Temperature
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