參數(shù)資料
型號: LT1640L
廠商: Linear Technology Corporation
元件分類: 基準電壓源/電流源
英文描述: Negative Voltage Hot Swap Controller(負電壓熱交換控制器)
中文描述: 負電壓熱插拔控制器(負電壓熱交換控制器)
文件頁數(shù): 4/16頁
文件大小: 221K
代理商: LT1640L
4
LT1640L/LT1640H
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
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 (LT1640L)
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 (LT1640H)
Circuit Breaker Trip Voltage
vs Temperature
pin which pulls the module’s enable pin low, forcing it off.
When V
DRAIN
drops below V
PG
, the PWRGD sink current
is turned off and a 6.5k resistor is connected between
PWRGD and DRAIN, allowing the module’s pull-up cur-
rent to pull the enable pin high and turn on the module.
OV
(Pin 2):
Analog Overvoltage Input. When OV is pulled
above the 1.223V low to high threshold, an overvoltage
condition is detected and the GATE pin will be immediately
pulled low. The GATE pin will remain low until OV drops
below the 1.203V high to low threshold.
PI
FU
CTIO
N
S
U
U
PWRGD/PWRGD (Pin 1):
Power Good Output Pin. This pin
will toggle when V
DRAIN
is within V
PG
of V
EE
. This pin can
be connected directly to the enable pin of a power module.
When the DRAIN pin of the LT1640L is above V
EE
by more
than V
PG
, 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
PG
, the PWRGD pin sinks current to V
EE
, pulling
the enable pin low and turning on the module.
When the DRAIN pin of the LT1640H is above V
EE
by more
than V
PG
, the PWRGD pin will sink current to the DRAIN
相關PDF資料
PDF描述
LT1640 Negative Voltage Hot Swap Controller
LT1640HIN8 Negative Voltage Hot Swap Controller
LT1640HIS8 Negative Voltage Hot Swap Controller
LT1640LCN8 Negative Voltage Hot Swap Controller
LT1640HCN8 Negative Voltage Hot Swap Controller
相關代理商/技術參數(shù)
參數(shù)描述
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