參數(shù)資料
型號(hào)： ASC7512
廠商： Electronic Theatre Controls, Inc.
元件分類： 溫度/濕度傳感器
英文描述： DIGITAL TEMPERATURE SENSOR WITH INTEGRATED FAN CONTROL
中文描述： 數(shù)字溫度傳感器整合了風(fēng)扇控制
文件頁數(shù)： 21/35頁
文件大?。?/td> 337K
代理商： ASC7512
- 21 -
Andigilog, Inc. 2006
www.andigilog.com
August 2006 - 70A05003
aSC7512
Register 5F-60h: Auto Fan Speed Range, PWM Frequency
Register
Address
Read/
Write
Register Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
Lock
5Fh
R/W
Zone 1 Range
Fan1 Frequency
RAN3
RAN2
RAN1
RAN0
HLFRQ
FRQ2
FRQ1
FRQ0
C3
X
60h
R/W
Zone 2 Range
RAN3
RAN2
RAN1
RAN0
RES
RES
RES
RES
C3
X
In Auto Fan Mode, when the temperature for a zone is above the Temperature Limit (Registers 67-69h) and below its
Absolute Temperature Limit (Registers 6A-6Bh), the speed of a fan assigned to that zone is determined as follows:
When the temperature reaches the Fan Temp Limit for a zone, the PWM output assigned to that zone will be Fan PWM
Minimum. Between Fan Temp Limit and (Fan Temp Limit + Range), the PWM duty cycle will increase linearly according to
the temperature as shown in the figure below. The PWM duty cycle will be 100% at (Fan Temp Limit + Range).
PWM frequency - FRQ[3:0] and HLFRQ
The PWM frequency bits [3:0] determine the PWM frequency for the fan. The aSC7512 has high and low frequency ranges
for the PWM outputs that are controlled by the HLFRQ bit.
PWM Frequency Selection (Default = 0011 = 30.04 Hz).
HLFRQ
FRQ [2:0]
PWM
Frequency
0
000
10.01 Hz
0
001
15.02 Hz
0
010
23.14 Hz
0
011
30.04 Hz (Default)
0
100
38.16 Hz
0
0
101
110
47.06 Hz
61.38 Hz
0
111
94.12 Hz
1
000
22.5 kHz
1
001
24 kHz
1
010
25.7 kHz
1
1
011
100
25.7 kHz
27.7 kHz
1
101
27.7 kHz
1
110
30 kHz
1
111
30 kHz
Table 9 Register Setting vs PWM Frequency
RAN[3:0]
Linear Control
Range (
°
C)
0000
2
0001
2.5
0010
3.33
0011
0100
4
5
0101
6.67
0110
8
0111
10
1000
13.33
1001
16
相關(guān)PDF資料
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ASC7521AM8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW- OLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR
ASC7531A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR
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