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参数资料
| 型号： | L9484 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 460 kHz SWITCHING FREQ-MAX, PSFM8 |
| 文件页数： | 10/11页 |
| 文件大小： | 162K |
| 代理商： | L9484 |
L9484
8/11
VP-F
Phase input voltage low fault
threshold
7.089.0
V
IP
Phase terminal current sink
VP > 1.5V and < 12.6V
VGO = 12.6V
0.3
3.5
mA
FP-IR
Initiate regulation phase
frequency
123
145
167
Hz
FP-TR
Terminate regulation phase
frequency
59
72
86
Hz
IRD
Initiate regulation delay
Regulator activated, VP-IR AND
FP-IR conditions met first time.
1.722.3
s
FSDC
Field strobe duty cycle
Regulator activated and
(regulation terminated or
regulation not initiated)
16
18.75
22
%
LRC
Load response control rate
Field drive duty cycle increase
34
40
46
%/s
FP-LRC
LRC transition frequency
LRC enabled if FP < FP-LRC
255
300
345
Hz
SS
Soft-start
LRC enabled until VSP reached
regardless other conditions
34
40
46
%/s
Table 8.
Regulation features (continued)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
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