參數(shù)資料
型號: LM93CIMTX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 電源管理
英文描述: LJT 6C 6#12 PIN PLUG
中文描述: 16-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO56
封裝: MO-153EE, TSSOP-56
文件頁數(shù): 64/92頁
文件大?。?/td> 654K
代理商: LM93CIMTX
16.0 Registers
(Continued)
16.8.4 Register BFh
PWM Ramp Control
Register
Address
Read/
Write
Register
Name
PWM Ramp
Control
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Default
Value
BFh
R/W
PH_RAMP
VRD_RAMP
00h
Bit
3:0
Name
R/W
R/W
Description
VRD_RAMP
Sets the time delay between ramp steps for the
VRDx_HOT ramp up/ramp down PWM function.
Sets the time delay between ramp steps for the
Px_PROCHOT ramp up/ramp down PWM function.
7:4
PH_RAMP
R/W
If the time delay between steps is set to 0 ms, the PWM duty cycle goes immediately to 100% instead of ramping up gradually.
VRD_RAMP
or PH_RAMP
0h
1h
2h
3h
4h
5h
6h
7h
8h
9h
Ah
Bh
Ch
Dh
Eh
Fh
Time Delay between
Ramp Steps
0 ms
50 ms
100 ms
150 ms
200 ms
250 ms
300 ms
350 ms
400 ms
450 ms
500 ms
550 ms
600 ms
650 ms
700 ms
750 ms
16.8.5 Register C0h
Fan Boost Hysteresis (Zones 1/2)
Register
Address
Read/
Write
Register
Name
Fan Boost
Hysteresis
(Zones 1/2)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Default
Value
C0h
R/W
H2
H1
44h
Bit
3:0
7:4
Name
H1
H2
R/W
R/W
R/W
Description
Sets the fan boost hysteresis for zone 1
Sets the fan boost hysteresis for zone 2
If the temperature zone is above fan boost temperature and then drops below the fan boost temperature, the following occurs:
the PWM output remains at 100% until the temperature goes a certain amount below the fan boost temperature. These hysteresis
registers control this amount and can be set anywhere from 0C to 15C (unsigned).
L
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