TC6504P075VCTRT(2004) 查看數據表（PDF） - Microchip Technology

零件编号

产品描述 (功能)

生产厂家

TC6504P075VCTRT
(Rev.:2004)

Ultra Small Temperature Switches with Pin Selectable Hysteresis

Microchip Technology 

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).

+5V

100 pF

RPULL-UP

100 kΩ

100 pF Temperature

Out of Range

VCC

TTCC6550011

TOVEERR

GNNDD GGND HHYYSSTTT

VCC

TTCC650033

TUNNDDEERR

GNDD GGNNDD HYYSSTT

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).

+5V

100 pF

VCC

TCT6C50625P0O2 65 Temperature

GGNNDD

Fault

TTOOVVEERR

GGNNDD HYYSSTT

TC6501/2/3/4

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).

+5V

12V

100 pF

VCC

Heater

TC6504

TUNDER

GND GND HYST

Temperature

TUNDER + 2°C

TUNDER

Time

TUNDER

FIGURE 5-3:

Thermostat.

Heater "On"

TC6504 As Heater

100 pF

VCCCC

HYYSSTT

Fan Control

TOVVEERR

TCT6C50625P0O245

GGNNDD GNNDD

FIGURE 5-2:

Fan Control with Over

Temperature Alert.

 2004 Microchip Technology Inc.

DS21451D-page 7

Share Link: