전자부품 데이터시트 검색엔진 |
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TC6502P095VCT 데이터시트(PDF) 7 Page - Microchip Technology |
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TC6502P095VCT 데이터시트(HTML) 7 Page - Microchip Technology |
7 / 16 page 2002-2012 Microchip Technology Inc. DS21451E-page 7 TC6501/2/3/4 5.0 APPLICATIONS The TC6501 and TC6503 have open-drain outputs and are, therefore, intended to interface as microcontroller reset inputs. Moreover, the combination of these two devices can be used to implement a temperature window alarm by wire-ORing the outputs and using an external pull-up resistor (see Figure 5-1). FIGURE 5-1: Over and Under Temperature Alarm. The TC6502 can be used to control a DC fan. The fan turns on when the sensed temperature rises above the factory-set threshold and remains on until the temperature falls below threshold minus the hysteresis selected. An additional fail-safe measure could be designed by using a second TC6502 with a higher temperature threshold to alert the user of an impending thermal shutdown, should the temperature continue to rise (see Figure 5-2). FIGURE 5-2: Fan Control with Over Temperature Alert. The TC6504, with its push-pull output, may be used in a similar fashion to turn on a heater element at cold temperatures (see Figure 5-3). FIGURE 5-3: TC6504 As Heater Thermostat. HYST VCC GND GND HYST TUNDER +5V RPULL-UP 100 k GND GND VCC TOVER TC6501 TC6503 HYST 100 pF Out of Range 100 pF HYST VCC GND GND HYST TUNDER GND GND VCC TOVER TC6501 TC6503 HYST Temperature GND GND 100 pF HYST +5V TOVER VCC TC6502PO65 GND GND HYST TOVER VCC TC6502PO45 Temperature Fault Fan Control GND GND HYST +5V TOVER VCC TC6502PO65 GND GND HYST TOVER VCC TC6502PO45 GND GND HYST +5V TOVER VCC TC6502 GND GND HYST TOVER VCC TC6502 100 pF Heater "On" TUNDER TUNDER TUNDER + 2°C TC6504 +5V 12V GND GND HYST VCC Heater TUNDER 100 pF Temperature Time |
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