參數(shù)資料
型號: MCP18480
廠商: Microchip Technology Inc.
元件分類: 基準電壓源/電流源
英文描述: -48V Hot Swap Controller
中文描述: - 48V熱插拔控制器
文件頁數(shù): 22/64頁
文件大?。?/td> 871K
代理商: MCP18480
MCP18480
DS20091B-page 22
2003 Microchip Technology Inc.
FIGURE 2-14:
Current vs. R
DISCH
Current.
TIMER Pin Output Low
FIGURE 2-15:
Current vs. I
SET
Current.
TIMER Pin Output High
Data taken with the minimum following conditions:
-50 μA < I
ISET
< 50 μA (I
ISET
0)
I
POS
= 5 mA
(Enables V
POS
at its self-regulating voltage)
V
REFIN
= 2.5V
Note 1:
V
UVTH
> V
VREFIN
V
OVTH
< V
VREFIN
V
SENSE
= V
VNEG
V
VFB
= V
VNEG
V
DRAINTH
= V
VNEG
V
OVO
= V
VNEG
V
CL
= V
VREFIN
V
ENABLE
= 5V (open)
V
RESTART
= V
VNEG
(open)
1.0
1.2
1.4
1.6
1.8
2.0
2.2
0
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
1
1
1
1
2
R
DISCH
Current (uA)
T
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
Data taken with the minimum following conditions:
-50 μA < I
ISET
< 50 μA (I
ISET
0)
I
POS
= 5 mA
(Enables V
POS
at its self-regulating voltage)
V
REFIN
= 2.5V
Note 1:
V
UVTH
> V
VREFIN
V
OVTH
< V
VREFIN
V
SENSE
100mV
V
VFB
= V
VNEG
V
DRAINTH
= V
VNEG
V
OVO
= V
VNEG
V
CL
= V
VREFIN
V
ENABLE
= 5V (open)
V
RESTART
= V
VNEG
(open)
-225
-200
-175
-150
-125
-100
-75
-50
-25
0
-
-
-
-
-
-
-
-
-
-
0
2
4
6
8
1
1
1
1
1
2
I
SET
Current (uA)
T
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
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