from Texas Instruments
SBOS335A – JUNE 2005 – REVISED SEPTEMBER 2007
TEMPERATURE SWITCH and
ANALOG OUT TEMPERATURE SENSOR in SC70
•2 ACCURACY: ±1°C (typical at +25°C)
• PROGRAMMABLE TRIP POINT
• PROGRAMMABLE HYSTERESIS: 5°C/10°C
• OPEN-DRAIN OUTPUTS
• LOW-POWER: 110μA (max)
• WIDE VOLTAGE RANGE: +1.8V to +18V
• OPERATION: –40°C to +150°C
• ANALOG OUT: 10mV/°C
• SC70-6 AND SOT23-6 PACKAGES
• POWER-SUPPLY SYSTEMS
• DC-DC MODULES
• THERMAL MONITORING
• ELECTRONIC PROTECTION SYSTEMS
The TMP300 is a low-power, resistor-programmable,
digital output temperature switch. It allows a threshold
point to be set by adding an external resistor. Two
levels of hysteresis are available. The TMP300 has a
VTEMP analog output that can be used as a testing
point or in temperature-compensation loops.
The TMP300 detects temperature with ±4°C accuracy
(max) over –40°C to +125°C.
With a supply voltage as low as 1.8V and low current
consumption, the TMP300 is ideal for power-sensitive
Available in two micropackages that have proven
thermal characteristics, this part gives a complete and
simple solution for users who need simple and
reliable thermal management.
3mA to TA
NOTE: (1) Thinfilm resistor with approximately 10% accuracy;
however, this accuracy error is trimmed out at the factory.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
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necessarily include testing of all parameters.
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