參數(shù)資料
型號： MAX5915
廠商： Maxim Integrated Products, Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Dual PCI 2.2 Hot-Swap Controllers
中文描述： 雙路PCI 2.2熱插拔控制器
文件頁數(shù)： 4/25頁
文件大?。?/td> 657K
代理商： MAX5915
M
Dual PCI 2.2 Hot-Swap Controllers
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
-12VIN
= -12V, V
+12VIN
= +12V, V
3.3VAUXIN
= +3.3V, V
ON_
= V
AUXON_
= +5V, T
A
= -40
°
C to +85
°
C, unless otherwise specified.
Typical values are at T
A
= +25
°
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
0.24
MAX
0.4
0.6
1.0
UNITS
T
A
= +25
°
C, I
D
= 0.4A
T
A
= +85
°
C, I
D
= 0.4A
V
3.3VAUXO
_ = 0
Output current rising (Note 2)
On-Resistance of Internal Switch
R
DS(ON), 3.3VAUX
Foldback Current Limit
Current-Foldback Threshold
Output Undervoltage Threshold
Auxiliary Input UVLO Delay Time
3.3VAUXO_ Internal Pulldown
ON AND AUXON COMPARATORS
Threshold Voltage
Hysteresis
Input Bias Current
I
3.3VAUXIN, LIM
0.5
0.75
1.2
2.89
1.6
1
A
A
V
V
3.3VAUXIN, UV
t
DEG, UVLO
R
3.3VAUXO_
2.76
2.99
(Note 1)
ON_ = 0
ms
k
1.0
2.1
V
V
HYS
I
B, COMP
25
mV
μ
A
20
ON_ and AUXON_ Deglitch
Time
t
DEG
Figures 5
–
8
(Note 3)
4
μ
s
FAULT RESPONSE, PGOOD_ STATUS OUTPUT
PGOOD_ Output Overcurrent
and Undervoltage Response
Time
t
RESP
Figures 5
–
8
0.5
1.5
ms
Output Overcurrent and
Undervoltage Deglitch Time
t
DELAY
Figures 3
–
7
16
t
RESP
ms
PGOOD_ Startup Time Out
t
START
See Figures 1, 2, 5, 6, 7, and 8
4
t
DELAY
ms
Autorestart Delay
t
RESTART
Delay time to restart after OC and/or
UV shutdown
64
t
START
0.5
ms
PGOOD_ Output Low Voltage
V
OL
I
SINK
= 2mA, ON_ = 0
0.7
V
PGOOD_ Output High Leakage
Current
I
LEAK
V
PGOOD_
= +5.5V
1
μ
A
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
T
SD
T
HYS
(Note 4)
125
5
°
C
°
C
Full Thermal Shutdown
Threshold
T
SD, FULL
(Note 5)
T
SD
+
20
°
C
Full Thermal Shutdown
Hysteresis
T
HYS, FULL
5
°
C
Note 1:
t
DEG, UVLO
is negative edge triggered. There is no time delay when the inputs rise above the UVLO threshold.
Note 2:
The current threshold when the output current starts to fold back. See the
Typical Operating Characteristics
.
Note 3:
t
DEG
is negative edge triggered. ON_ or AUXON_ transition from low to high has no delay.
Note 4:
Temperature threshold at which the outputs of the channel with overcurrent shut down.
Note 5:
The temperature threshold at which both channels shut down.
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