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參數(shù)資料
| 型號： | TK11052M |
| 廠商： | TOKO Inc. |
| 英文描述： | THERMOSTAT IC |
| 中文描述： | 溫控器集成電路 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 124K |
| 代理商： | TK11052M |
July 1999 TOKO, Inc.
Page 9
TK11052
APPLICATION HINTS (CONT.)
V
REF
x T
SH
x T
C
R
b
=
(0.4925 + T
SET
x T
C
- T
SH
x T
C
) x I
SH
1183
x T
SET
- T
SH
)
T
IN1
OUT1
IN2
OUT2
VCC
GND
Vref
NC
36 k
62 k
31.8 k
78.1 k
VCC
300 k
VCC
Protected
Circuit
Temperature (
°
C)
90
OUT1
OUT2
OUT1 + OUT2
"H"
"L"
"H"
"L"
"L"
"L"
"H"
= 181.07 - (T
3
(9)
80.74 + (T
SET
- T
SH
)
x T
SH
R
a
= 1183
3
181.07 - (T
SET
- T
SH
)
x T
SH
R
b
= 1183
3
Example:
R
a
and R
b
when set temperature is 0
°
C and temperature hysteresis is 5
°
C.
= 78.096 x 10
3
≈
78.1 k
= 31.789 x 10
3
≈
31.8 k
Thermostat IC Application
Example:
WINDOW TYPE OUTPUT
The following application protects the circuit within the operating temperature range of 0 to 85
°
C. When the temperature
is 0
°
C or less, or 85
°
C or more, the N channel Mos transistor is turned OFF.
When the temperature returns to between 5 and 80
°
C by the hysteresis function, the N channel Mos transistor is turned
ON.
TEMPERATURE FUSE
The following application is a temperature fuse circuit. The output of the TK11052M becomes a High Level when the
surrounding temperature exceeds 85
°
C and the P channel Mos transistor is turned off. Even if the surrounding
temperature drops, the P channel Mos transistor remains off.
T
IN1
OUT1
IN2
OUT2
VCC
GND
Vref
NC
62 k
VCC
300 k
VCC
Protected
Circuit
Temperature (
°
C)
0
10
80
90
OUT1
OUT2
"L"
"H"
"L"
32 k
0.1 μF
VCC
1.011 V
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