參數(shù)資料
型號(hào): NCT7491RQR2G
廠商: ON Semiconductor
文件頁(yè)數(shù): 56/80頁(yè)
文件大?。?/td> 844K
描述: IC REMOTE THERMAL MONITOR 24QSOP
標(biāo)準(zhǔn)包裝: 2,500
系列: *
NCT7491
http://onsemi.com
56
Table 72. TEMP TRANGE/PWM FREQUENCY REGISTERS
Register Address
R/W
Description
PowerOn Default
0x5F
R/W
Remote 1 T
RANGE
/PWM1 frequency.
0xC3
0x60
R/W
Local temperature T
RANGE
/PWM2 frequency.
0xC3
0x61
R/W
Remote 2 T
RANGE
/PWM3 frequency.
0xC3
Bit
Name
R/W
Description
<2:0>
FREQ
R/W
These bits control the PWMx frequency (only apply when PWM channel is in low frequency
mode).
000 = 11.0 Hz
001 = 14.7 Hz
010 = 22.1 Hz
011 = 29.4 Hz (default)
100 = 35.3 Hz
101 = 44.1 Hz
110 = 58.8 Hz
111 = 88.2 Hz
<3>
HF/LF
R/W
HF/LF = 1, High frequency PWM mode is enabled for PWMx.
HF/LF = 0, Low frequency PWM mode is enabled for PWMx.
<7:4>
RANGE
R/W
These bits determine the PWM duty cycle vs. the temperature range for automatic fan control.
0000 = 2癈
0001 = 2.5癈
0010 = 3.33癈
0011 = 4癈
0100 = 5癈
0101 = 6.67癈
0110 = 8癈
0111 = 10癈
1000 = 13.33癈
1001 = 16癈
1010 = 20癈
1011 = 26.67癈
1100 = 32癈 (default)
1101 = 40癈
1110 = 53.33癈
1111 = 80癈
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