參數(shù)資料
型號(hào): LTC4211IMS8
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: Hot Swap Controller with Multifunction Current Control
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: PLASTIC, MSOP-8
文件頁數(shù): 4/12頁
文件大?。?/td> 230K
代理商: LTC4211IMS8
4
LT4250L/LT4250H
4250lhf
TYPICAL PERFOR U
Gate Voltage vs Temperature
TEMPERATURE (
°
C)
12.0
G
13.0
14.0
15.0
12.5
13.5
14.5
–25
0
75
1640 G04
100
–50
25
50
V
DD
= 48V
TEMPERATURE (
°
C)
–50
48
T
49
51
52
53
55
25
0
50
1640 G05
50
54
100
–25
75
TEMPERATURE (
°
C)
–50
G
μ
A
48
47
46
45
44
43
42
41
40
75
1640 G06
–25
100
50
25
0
V
GATE
= 0V
Gate Pull-Up Current
vs Temperature
Gate Pull-Down Current
vs Temperature
TEMPERATURE (
°
C)
–50
G
49
52
55
75
1640 G07
46
43
40
–25
0
25
50
100
V
GATE
= 2V
PWRGD Output Low Voltage
vs Temperature (LT4250L)
TEMPERATURE (
°
C)
–50
P
0.3
0.4
0.5
75
1640 G08
0.2
0.1
0
–25
25
0
50
100
I
OUT
= 1mA
TEMPERATURE (
°
C)
–50
2
O
)
3
4
5
6
7
8
–25
25
0
50
75
1640 G09
100
V
DRAIN
– V
EE
> 2.4V
PWRGD Output Impedance
vs Temperature (LT4250H)
Current Limit Trip Voltage
vs Temperature
This condition is latched until the GATE pin is turned off via
the UV, OV, UVLO or the electronic circuit breaker.
When the DRAIN pin of the LT4250H is above V
EE
by more
than V
DL
or V
GATE
is more than V
GH
from
V
GATE
, the
PWRGD pin will sink current to the DRAIN pin which pulls
the module’s enable pin low, forcing it off. When V
DRAIN
drops below V
DL
and V
GATE
rises above V
GH
, the PWRGD
sink current is turned off, allowing the module’s pull-up
current to pull the enable pin high and turn on the module.
This condition is latched until the GATE pin is turned off via
the UV, OV, UVLO or the electronic circuit breaker.
PI
FU
CTIO
N
S
U
U
PWRGD/PWRGD (Pin 1):
Power Good Output Pin. This pin
will latch a power good indication when V
DRAIN
is within V
DL
of V
EE
and V
GATE
is within V
GH
of
V
GATE
. This pin can be
connected directly to the enable pin of a power module.
When the DRAIN pin of the LT4250L is above V
EE
by more
than V
DL
or V
GATE
is more than V
GH
from
V
GATE
, the
PWRGD pin will be high impedance, allowing the pull-up
current of the module’s enable pin to pull the pin high and
turn the module off. When V
DRAIN
drops below V
DL
and
V
GATE
rises above V
GH
, the PWRGD pin sinks current to
V
EE
, pulling the enable pin low and turning on the module.
相關(guān)PDF資料
PDF描述
LTC4211IS8 Hot Swap Controller with Multifunction Current Control
LT4250HIN8 Negative 48V Hot Swap Controller
LT4250HIS8 Negative 48V Hot Swap Controller
LT1641-1 Negative 48V Hot Swap Controller
LTC1646 Low Power Timer 8-PDIP 0 to 70
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