參數(shù)資料
型號: LT4256-3
廠商: Linear Technology Corporation
元件分類: 基準電壓源/電流源
英文描述: Positive High Voltage Hot Swap Controller with Open-Circuit Detect
中文描述: 正高電壓熱插拔控制器與開路檢測
文件頁數(shù): 2/20頁
文件大?。?/td> 305K
代理商: LT4256-3
LT4256-3
2
42563f
(Note 1)
Supply Voltage (V
CC
) ................................ –0.3 to 100V
SENSE, PWRGD ....................................... –0.3 to 100V
GATE Voltage (Note 2).................... –0.3V to V
CC
+ 10V
GATE Maximum Current..................................... 200
μ
A
V
OUT
.......................................................... –3V to 100V
FB, UV, OPEN ............................................. –0.3 to 44V
OV .............................................................. –0.3 to 18V
RETRY ........................................................ –0.3 to 15V
TIMER Voltage......................................... –0.3V to 4.3V
Maximum Input Current (TIMER) ....................... 100
μ
A
Operating Temperature
LT4256-3C ............................................. 0
°
C to 70
°
C
LT4256-3I ......................................... –40
°
C to 85
°
C
Storage Temperature Range................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................. 300
°
C
ABSOLUTEW
W
W
U
Consult LTC Marketing for parts specified with wider operating temperature ranges.
PACKAGE/ORDER IU
U
W
ORDER PART
NUMBER
LT4256-3CGN
LT4256-3IGN
GN PART MARKING
42563
42563I
1
2
3
4
5
6
7
8
TOP VIEW
GN PACKAGE
16-LEAD PLASTIC SSOP
T
JMAX
= 125
°
C,
θ
JA
= 130
°
C/W
16
15
14
13
12
11
10
9
UV
OV
NC
OPEN
PWRGD
NC
RETRY
GND
V
CC
SENSE
NC
GATE
V
OUT
NC
FB
TIMER
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 48V unless otherwise noted.
SYMBOL
PARAMETER
V
CC
Operating Voltage
I
CC
Operating Current
V
UVLH
Undervoltage Threshold
V
UVHYS
Hysteresis
I
INUV
UV Input Current
The
G
denotes the specifications which apply over the full operating
CONDITIONS
MIN
10.8
TYP
MAX
80
3.9
4.04
0.55
–1
–3
1.2
4.04
0.55
1
6.5
0.5
1.3
1
22
65
70
–55
80
UNITS
G
V
1.8
4
0.4
–0.1
–1.5
0.85
4
0.4
0.1
3
0.20
0.75
0.1
14
55
40
–30
62
130
mA
V
CC
Low-to-High Transition
G
3.96
0.25
V
V
UV
1.2V
UV = 0V
μ
A
μ
A
V
V
V
μ
A
mV
V
UVRTH
V
OVLH
V
OVHYS
I
INOV
V
OPEN
V
OLOPEN
Fault Latch Reset Threshold Voltage
Overvoltage Threshold
Hysteresis
OV Input Current
Open-Circuit Voltage Threshold (V
CC
– V
SENSE
)
OPEN Output Low Voltage
G
0.4
3.96
0.25
V
CC
Low-to-High Transition
G
0V
OV < 7V
G
1.5
I
O
= 2mA
I
O
= 5mA
V
OPEN
= 5V
FB = 0V
FB
2V
V
SENSE
= V
CC
Charge Pump On,
V
GATE
= 7V
Any Fault, V
GATE
> V
OUT
Any Fault, V
GATE
= V
OUT
+
V
GATEL
,
V
OUT
= 48V
V
GATE
– V
OUT
, 10.8V
V
CC
20V
20V
V
CC
80V
V
GATE
– V
OUT
, V
OUT
= 48V
V
V
I
INOPEN
V
SENSETRIP
Leakage Current
SENSE Pin Trip Voltage (V
CC
– V
SENSE
)
μ
A
mV
mV
μ
A
μ
A
mA
μ
A
G
G
7
45
I
INSNS
I
PU
I
PD
I
PDL
SENSE Pin Input Current
GATE Pull-Up Current
GATE Pull-Down Current
V
OUT
Pull-Down Current, Fault Condition
G
–16
40
V
GATE
External N-Channel Gate Drive (Note 2)
G
G
4.5
10
8.8
11.6
–2
12.5
12.8
V
V
V
V
GATEL
External N-Channel Gate Drive, Fault Condition
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