參數(shù)資料
型號: LT1640L
廠商: Linear Technology Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Negative Voltage Hot Swap Controller(負(fù)電壓熱交換控制器)
中文描述: 負(fù)電壓熱插拔控制器(負(fù)電壓熱交換控制器)
文件頁數(shù): 3/16頁
文件大小: 221K
代理商: LT1640L
3
LT1640L/LT1640H
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. (Note 2), V
DD
= 48V, V
EE
= 0V unless otherwise noted.
The
G
denotes the specifications which apply over the full operating
SYMBOL
V
PG
V
PGHY
I
DRAIN
V
OL
PARAMETER
Power Good Threshold
Power Good Threshold Hysteresis
Drain Input Bias Current
Output Low Voltage
CONDITIONS
V
DRAIN
– V
EE
, High to Low Transition
MIN
1.1
TYP
1.4
0.4
50
MAX
2.0
UNITS
V
V
V
DRAIN
= 48V
PWRGD (LT1640L), (V
DRAIN
– V
EE
) < V
PG
I
OUT
= 1mA
I
OUT
= 5mA
PWRGD (LT1640H), V
DRAIN
= 5V
I
OUT
= 1mA
PWRGD (LT1640L), V
DRAIN
=48V,
V
PWRGD
= 80V
PWRGD (LT1460H), (V
DRAIN
– V
EE
) < V
PG
G
10
250
μ
A
G
0.48
1.50
0.8
3.0
V
V
Output Low Voltage
(PWRGD – DRAIN)
Output Leakage
G
0.75
0.05
1.0
10
V
I
OH
G
μ
A
R
OUT
Power Good Output Impedance
(PWRGD to DRAIN)
G
2
6.5
k
AC
t
PHLOV
t
PHLUV
t
PLHOV
t
PLHUV
t
PHLSENSE
t
PHLPG
OV High to GATE Low
UV Low to GATE Low
OV Low to GATE High
UV High to GATE High
SENSE High to Gate Low
DRAIN Low to PWRGD Low
DRAIN Low to (PWRGD – DRAIN) High
DRAIN High to PWRGD High
DRAIN High to (PWRGD – DRAIN) Low
Figures 1, 2
Figures 1, 3
Figures 1, 2
Figures 1, 3
Figures 1, 4
(LT1640L) Figures 1, 5
(LT1640H) Figures 1, 5
(LT1640L) Figures 1, 5
(LT1640H) Figures 1, 5
1.7
1.5
5.5
6.5
3
0.5
0.5
0.5
0.5
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
2
4
t
PLHPG
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to V
EE
unless otherwise
specified.
TYPICAL PERFOR U
SUPPLY VOLTAGE (V)
0
S
1.3
1.4
1.5
60
100
1640 G01
1.2
1.1
0
20
40
80
1.6
1.7
1.8
Supply Current vs Supply Voltage
TEMPERATURE (
°
C)
–50
–25
1.0
S
1.1
1.2
1.3
1.4
1.6
0
25
50
75
1640 G02
100
1.5
Supply Current vs Temperature
SUPPLY VOLTAGE (V)
0
6
G
7
9
10
11
40
80
100
15
1640 G03
8
20
60
12
13
14
Gate Voltage vs Supply Voltage
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