參數(shù)資料
型號(hào): LM86BIMQX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 模擬信號(hào)調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO24
封裝: QSOP-24
文件頁數(shù): 13/26頁
文件大小: 261K
代理商: LM86BIMQX
Functional Description (Continued)
TABLE 7. Spike Smoothing
ZN-X[2:0]
Spike Smoothed Over
000
35 seconds
001
17.6 seconds
010
11.8 seconds
011
7.0 seconds
100
4.4 seconds
101
3.0 seconds
110
1.6 seconds
111
.8 seconds
TABLE 8. PWM Output Below Limit Depending on Value of Off/Min
Off/Min
PWM Action
0
At 0% duty below LIMIT
1
At Min PWM Duty below LIMIT
4.17 Registers 64-66h: Minimum PWM Duty Cycle
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?
64h
R/W
Fan1 PWM Minimum
7
6543210
80h
U
65h
R/W
Fan2 PWM Minimum
7
6543210
80h
U
66h
R/W
Fan3 PWM Minimum
7
6543210
80h
U
These registers specify the minimum duty cycle that the PWM will output when the measured temperature reaches the
Temperature LIMIT register setting.
This register becomes Read Only when the Ready/Lock/Start/Override register Lock bit is set. Any further attempts to write to this
register shall have no effect. After power up the default value is used whenever the Ready/Lock/Start/Override register Start bit
is cleared even though modifications to this register are possible.
20035307
FIGURE 2. What LM85 Auto Fan Control Sees With and Without Spike Smoothing
LM85
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相關(guān)PDF資料
PDF描述
LM85BIMQ/NOPB SPECIALTY ANALOG CIRCUIT, PDSO24
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