NCT47 Datasheet, PDF (1/4 Pages) ON Semiconductor – High Precision Temperature-to-Voltage Converter

NCT47
High Precision Temperature-
to-Voltage Converter
The NCT47 is linear output temperature sensor whose output
voltage is directly proportional to measured temperature. The NCT47
can accurately measure temperature from –40°C to +125°C.
For the NCT47, the output voltage range is typically 100mV at
–40°C, 500mV at 0°C, 750mV at +25°C, and 1.75V at +125°C. A
10mV/°C voltage slope allows for the wide temperature range. The
NCT47 is packaged in space saving 3–Pin SOT–23B packages,
making them ideal for space critical applications.
Features
• Wide Temperature Measurement Range: –40°C to 125°C
• High Temperature Converter Accuracy: ±2°C Max at 25°C
• Linear Temperature Slope: 10mV/°C
• 2.7V to 4.4V Operating Range
• Small 3–Pin SOT–23B Package
• Very Low Supply Current: 35µA typical
Typical Applications
• Cellular Phones
• Power Supply Thermal Shutdown
• Temperature–Controlled Fans
• Temperature Measurement / Instrumentation
• Temperature Regulators
• Consumer Electronic
• Portable Battery Powered Equipment
FUNCTIONAL BLOCK DIAGRAM
VDD = 2.7V to 4.4V
VDD
NCT47
VOUT
MICROCONTROLLER
A/D
CONVERTER
http://onsemi.com
SOT–23B
(TO–236)
CASE TBD
PIN CONFIGURATION
(Top View)
VDD 1
VOUT 2
3 ^VSS
SOT–23B*
NOTE: *SOT–23B is equivalent to JEDEC (TO–236)
ORDERING INFORMATION
Device
Package
Shipping
NCT47SNT1
SOT–23B 3000 Tape/Reel
VSS
© Semiconductor Components Industries, LLC, 2000
1
May, 2000 – Rev. 0
Publication Order Number:
NCT47/D