|Category||Sensors => Temperature Sensors|
|Description||The TC6501 Through TC6504 Are SOT-23 Temperature Switches That Require no External Components And The Design is Facilitated With Factory Programmed Temperature Thresholds|
|Company||Microchip Technology, Inc.|
|Datasheet||Download TC6504 datasheet
5-Pin SOT-23A Factory Programmed Thresholds from in 10°C Increments Pin Selectable or +10°C Hysteresis ± 0.5°C (Typ) Threshold Accuracy Over Full Temperature Range No External Components Required 17 µA Supply Current (Typ)
The TC6501/2/3/4 are SOT-23 temperature switches that require no external components and are available with factory programmed temperature thresholds. A choice of factory trimmed temperature trip points are also available. Pin selectable hysteresis or +10°C allows flexibility to the design of the application. These parts typically consume only µA of current and operate over the entire to +135°C temperature range, while offering accuracies of ±0.5°C (typ). The TC6501 and TC6503 have an open-drain, activelow output, which targets microcontroller reset control. The TC6502 and TC6504 have a CMOS, active-high output designed to drive the logic level MOSFET that turns on a fan or heater element. The TC6501/TC6502 are designed for hot temperature monitoring to +125°C). These devices assert a logic signal when the temperature goes above the threshold. The TC6503/TC6504 are optimized for cold temperature monitoring to +15°C) and assert a logic signal when the temperature goes below the threshold. The TC6501/2/3/4 are offered with five standard temperature thresholds. Available 5-Pin SOT-23A packages, these parts are ideal for applications requiring high integration, small size, low power and low installed cost.Ultra Small Temperature Switches with Pin Selectable Hysteresis
Thermal Management in PCs and Servers Over-Temperature Fail Safe Circuits Simple Fan Controller Temperature Alarms Projectors/Printers Notebook Computers Network Boxes
* Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (VCC).............................. to +7V Input Current (All Pins).......................................20 mA Output Current (All Pins)....................................20 mA Operating Temperature Range.......... to +135°C Storage Temperature Range............. to +165°C TOVER to +7V TOVER -0.3V to (VCC + 0.3V) TUNDER to 7V TUNDER -0.3V to (VCC + 0.3V) All Other Pins............................. -0.3V to (VCC + 0.3V) Maximum Junction Temperature, TJ.................. 150°C Power Dissipation (TA = +70°C): (Derate 7.1 mW/°C Above +70°C)...............570 mW
Electrical Characteristics: Unless otherwise noted, VCC +5.5V, R PULL-UP k (TC6501/TC6503 only), 100 pF decoupling capacitor from CC to GND, TAMB to +135°C. Typical values are = +25°C. Parameter Supply Voltage Range Supply Current HYST Input Threshold HYST Input Threshold Temperature Threshold Accuracy (Note 1) Symbol V CC ICC VIH V IL TTH Min 0.8 x VCC Temperature Threshold Hysteresis Output Voltage High THYST VOH 0.8 x VCC - 1.5 Output Voltage Low Open-Drain Output Leakage Current VOL Typ Max 0.2 x VCC Unit to +125°C HYST = GND HYST = VCC ISOURCE = 500 µA, VCC 2.7V (TC6502/TC6504 Only) ISOURCE = 800 µA, VCC 4.5V (TC6502/TC6504 Only) ISINK = 1.2 mA, VCC > 2.7V ISINK = 3.2 mA, VCC > 4.5V VCC = 2.7V, TUNDER 5.5V (TC6503); TOVER 5.5V (TC6501) Test Conditions
Note 1: The TC6501/2/3/4 are available with internal, factory programmed temperature trip thresholds from in +10°C increments.
The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. Unless otherwise noted, VCC = 5.0V, RPULL-UP k (TC6501/TC6503 only), 100 pF decoupling capacitor from VCC to GND, TAMB = +25°C.
FIGURE 2-3: Thermal Step Response in Perfluorinated Fluid (SOT-23).
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