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參數(shù)資料
| 型號(hào)： | TC650ADUA |
| 廠(chǎng)商： | 意法半導(dǎo)體 |
| 元件分類(lèi)： | 溫度/濕度傳感器 |
| 英文描述： | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
| 中文描述： | 微型集成溫度傳感器 |
| 文件頁(yè)數(shù)： | 8/16頁(yè) |
| 文件大?。?/td> | 149K |
| 代理商： | TC650ADUA |
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TC650/TC651
DS21450C-page 8
2004 Microchip Technology Inc.
4.6
Temperature Selection Guide
(Minimum Fan Speed/Full Speed)
There are two temperature thresholds that determine
the characteristics of the device. The minimum fan
speed temperature (T
L
) and the full fan speed temper-
ature (T
H
). Depending on the TC65X device selected,
when the temperature is below the T
L
trip point, the
PWM output will perform a different operation. For the
TC650, the PWM will be driven at the minimum PWM
frequency, while the TC651 will shut down the PWM
(PWM = L).
T
L
and T
H
can be selected in 5°C increments. T
L
can
range from 25°C to 35°C. T
H
can range from 35°C to
55°C and must be 10°C (or more) than the specified T
L
.
The five temperature regions defined by the six
thresholds are defined in the TC650/TC651 by means of
factory trimming. Once a T
L
and T
H
are set, the T
1
– T
4
thresholds are automatically equally spaced between T
L
and T
H
. Table 4-1 shows these 5 regions and what the
corresponding PWM duty cycle is.
TABLE 4-1:
TEMPERATURE RANGE
DEFINITION
Table 4-2 shows the device codes that specify the T
H
and T
L
temperature thresholds. The following exam-
ples are given to assist in understanding the device-
ordering nomenclature.
Example 1:
Suppose you wanted the fan to
run at
40% speed at 25
°
C
or less and go to
full-
speed at 45
°
C.
You would order the part
number TC650AEVUA.
Example 2:
Suppose you wanted the fan to
turn on at
30
°
C
and go to
full speed at 45
°
C.
You
would order the part number
TC651BEVUA.
TABLE 4-2:
DEVICE CODES FOR
TEMPERATURE
THRESHOLDS
Temperature
(T = T
J
)
(Note 1)
PWM Duty Cycle
TC650
(Minimum
Speed mode)
TC651
(Auto-shutdown
mode)
T < T
L
T
L
< = T < T
1
T
1
< = T < T
2
T
2
< = T <T
3
T
3
< = T < T
4
T
4
< = T < T
H
T
H
< = T < T
OV
T
OV
< = T
40%
50%
60%
70%
80%
90%
100%
Off
50%
60%
70%
80%
90%
100%
100% with Overtemperature Alert
(T
OVER
= L)
The temperature regions defined by the
six temperature thresholds are pre-
defined in the TC650/TC651 by means of
factory trimming. Once a T
L
and T
H
are
programmed, the T
1
– T
4
thresholds are
automatically equally spaced between T
L
and T
H
.
Note 1:
Temp.
Threshold
Difference
T
L
T
H
Threshold
Limits Code
10°C
25
30
35
25
30
35
25
30
35
25
35
40
45
40
45
50
45
50
55
55
AC
(1)
BD
(2)
CE
(2)
AD
(2)
BE
(1)
CF
(2)
AE
(1)
BF
(2)
CG
(1)
AG
(1)
15°C
20°C
30°C
Note 1:
This temperature threshold option is
available for ordering.
This is a custom temperature threshold
option. Please contact the factory for
more information.
2:
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TC650ADUATR | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
| TC650ADV | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
| TC650AEUA | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
| TC650AEUATR | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
| TC650AEV | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC650ADUATR | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
| TC650ADV | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
| TC650ADVUA | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert |
| TC650AEUA | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
| TC650AEUATR | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Overtemperature Alert |
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