參數(shù)資料
型號: LT1641CS8
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: Positive High Voltage Hot Swap Controller
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: 0.150 INCH, PLASTIC, SOP-8
文件頁數(shù): 3/12頁
文件大小: 230K
代理商: LT1641CS8
3
LT4250L/LT4250H
4250lhf
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
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
T
A
= 25
°
C
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
V
DD
= 48V
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
T
A
= 25
°
C
Gate Voltage vs Supply Voltage
SYMBOL
V
OVHY
I
INOV
V
DL
V
GH
I
DRAIN
V
OL
PARAMETER
OV Pin Hysteresis
OV Pin Input Current
DRAIN Low Threshold
GATE High Threshold
Drain Input Bias Current
PWRGD Output Low Voltage
CONDITIONS
MIN
TYP
20
–0.03
1.6
1.3
80
MAX
UNITS
mV
V
OV
= V
EE
V
DRAIN
– V
EE
, DRAIN Decreasing
V
GATE
– V
GATE
Decreasing
V
DRAIN
= 48V
PWRGD (LT4250L), (V
DRAIN
– V
EE
) < V
DL
I
OUT
= 1mA
I
OUT
= 5mA
PWRGD (LT4250H), V
DRAIN
= 5V
I
OUT
= 1mA
PWRGD (LT4250L), V
DRAIN
= 48V, V
PWRGD
= 80V
PWRGD (LT4250H), V
DRAIN
= 0V, V
PWRGD
= 80V
G
–0.5
2.3
μ
A
V
V
μ
A
1.1
G
10
500
G
G
0.48
1.2
0.8
3.0
V
V
PWRGD Output Low Voltage
(PWRGD – DRAIN)
Output Leakage
G
0.75
0.05
0.05
1.0
10
10
V
I
OH
G
G
μ
A
μ
A
AC
t
PHLOV
t
PHLUV
t
PLHOV
t
PLHUV
t
PHLSENSE
t
PHLCB
t
PHLDL
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
Current Limit to GATE Low
DRAIN Low to PWRGD Low
DRAIN Low to (PWRGD – DRAIN) High
GATE High to PWRGD Low
GATE High to (PWRGD – DRAIN) High
Figures 1a, 2
Figures 1a, 3
Figures 1a, 2
Figures 1a, 3
Figures 1a, 4a
Figures 1b, 4b
(LT4250L) Figures 1a, 5a
(LT4250H) Figures 1a, 5a
(LT4250L) Figures 1a, 5b
(LT4250H) Figures 1a, 5b
1.7
1.5
5.5
6.5
1
500
1
1
1.5
1.5
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
3
t
PHLGH
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.
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