TC07CUA Просмотр технического описания (PDF) - TelCom Semiconductor Inc => Microchip

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производитель

TC07CUA

3V LOGIC OUTPUT TEMPERATURE SENSOR WITH PROGRAMMABLE HYSTERESIS

TelCom Semiconductor Inc => Microchip 

3V LOGIC OUTPUT TEMPERATURE

SENSOR WITH PROGRAMMABLE

HYSTERESIS

250

200

150

100

50

-55 -35 -15

5 25 45 65

TEMPERATURE (°C)

85 105 125

Figure 2. Programming Resistor Values vs. Temperature

1

TC07

Cooling and Heating Applications

2 The TC07 can be used to control a DC fan as shown in

Figure 3. The fan turns on when the sensed temperature

rises above TSET and remains on until the temperature falls

below HSET. The amount of "over-cooling" performed by the

fan is dependent on the programmed hysteresis.

Figure 4 shows the TC07 acting as a heater thermostat.

Circuit operation is identical to that of the cooling fan

application.

3

+2.7 to 5.5V +12V

RT

RH

NC

VDD

HSET

TSET

TC07

NC

OUT

GND

OUT

+ DC FAN

LOGIC

LEVEL

MOSFET

TSET

HSET

+2.7 to 5.5V +12V

4

RH

NC

VDD

RT

HSET

NC

TC07

TSET

OUT

GND

OUT

HEATER

LOGIC

LEVEL

MOSFET

5

6

TSET

HSET

7

OUT

FAN "ON"

Figure 3. TC07 as a Fan Controller

TELCOM SEMICONDUCTOR, INC.

OUT

HEATER "ON"

Figure 4. TC07 as a Heater Thermostat

8

2-13

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