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参数资料
| 型号： | LTC4355CMS#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | LEAD FREE, PLASTIC, MSOP-16 |
| 文件页数： | 14/20页 |
| 文件大小： | 249K |
| 代理商： | LTC4355CMS#PBF |
LTC4355
3
4355fe
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOUT
Operating Supply Range
l
980
V
IOUT
Supply Current
l
23
mA
IINx
INx Pin Input Current
GATE High
l
0.5
0.6
1.2
mA
ΔVGATEx
External N-Channel Gate Drive
(VGATEx – VINx)
VOUT = 20V to 80V
VOUT = 9V to 20V
l
10
4.5
14
6
18
V
IGATEx(UP)
External N-Channel Gate Pull-Up Current
VGATEx = VINx,
VINx – VOUT = 100mV
l
–14
–20
–26
μA
IGATEx(DN)
External N-Channel Gate Pull-Down in Fault
Condition
Gate Drive Off, VGATEx = VINx +5V
l
12
A
tOFF
Gate Turn-Off Time
VINx – VOUT = 55mV
–|
––1V, CGATE = 0
VGATEx – VINx < 1V
l
0.3
0.4
μs
VMONx(TH)
MONx Pin Threshold Voltage
VMONx Rising
l
1.209
1.227
1.245
V
VMONx(HYST)
MONx Pin Hysteresis Voltage
l
10
30
45
mV
IMONx(IN)
MONx Pin Input Current
VMONx = 1.23V
l
0±1
μA
VINx(TH)
INx Pin Threshold Voltage
VINx Rising
l
3
3.5
4
V
VINx(HYST)
INx Pin Hysteresis Voltage
l
25
75
150
mV
ΔVSD
Source-Drain Regulation Voltage
(VINx – VOUT )
VGATEx – VINx = 2.5V
l
10
25
55
mV
ΔVSD(FLT)
Short-Circuit Fault Voltage
(VINx – VOUT) Rising
SET = 0V
SET = 100kΩ
SET = Hi-Z
l
0.2
0.4
1.3
0.25
0.5
1.5
0.3
0.6
1.6
V
ΔVSD(FLT)(HYST) Short-Circuit Fault Hysteresis Voltage
30
mV
VFLT
PWRFLTx, FUSEFLTx, VDSFLT Pins
Output Low
IPWRFLTx, IFUSEFLTx, IVDSFLT = 5mA
l
100
200
mV
IFLT
PWRFLTx, FUSEFLTx, VDSFLT Pins
Leakage Current
VPWRFLTx, VFUSEFLTx, VVDSFLT = 5V
l
0±1
μA
RSET(L)
SET Resistance Range for
ΔVSD(FLT) = 0.25V
l
05
k
Ω
RSET(M)
SET Resistance Range for
ΔVSD(FLT) = 0.5V
l
50
150
k
Ω
RSET(H)
SET Resistance Range for
ΔVSD(FLT) = 1.5V
l
1
M
Ω
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. 9V < VOUT < 80V, unless otherwise noted.
Note 2: All currents into pins are positive, all voltages are referenced to
GND unless otherwise specied.
Note 3: The GATEx pins are internally limited to a minimum of 13V above
INx. Driving these pins beyond the clamp may damage the part.
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