參數(shù)資料
型號: LTC4251IS6
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6
封裝: 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN
文件頁數(shù): 14/20頁
文件大小: 235K
代理商: LTC4251IS6
LTC4251/LTC4251-1/
LTC4251-2
3
425112fa
TEMPERATURE (
°C)
–55
I IN
(
A)
2000
1800
1600
1400
1200
1000
800
600
400
200
0
–15
25
45
125
425112 G01
–35
5
65
85 105
VIN = (VZ – 0.3V)
VIN (V)
0
2
4
6
8
10 12 14 16 18 20 22
I IN
(mA)
1000
100
10
1
0.1
425112 G02
TA = –40°C
TA = 125°C
TA = 25°C
TA = 85°C
TEMPERATURE (
°C)
–55
r Z
(
)
10
9
8
7
6
5
4
3
2
–15
25
45
125
425112 G03
–35
5
65
85 105
IIN = 2mA
TYPICAL PERFOR A CE CHARACTERISTICS
UW
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.
IIN vs Temperature
IIN vs VIN
rZ vs Temperature
ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Notes 2, 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOVLO
OV Threshold Low
LTC4251
5.25
5.55
5.85
V
LTC4251-1
5.61
5.91
6.21
V
VOVHST
OV Hysteresis
LTC4251
0.60
V
LTC4251-1
0.26
V
ISENSE
SENSE Input Current
UV/OV = 4V, VSENSE = 50mV
–30
–15
A
IINP
UV/OV Input Current
UV/OV = 4V
±0.1
±1
A
VTMRH
Timer Voltage High Threshold
4V
VTMRL
Timer Voltage Low Threshold
1V
ITMR
Timer Current
Timer On (Initial Cycle, Sourcing), VTMR = 2V
5.8
A
Timer Off (Initial Cycle, Sinking), VTMR = 2V
28
mA
Timer On (Circuit Breaker, Sourcing), VTMR = 2V
230
A
Timer Off (Cooling Cycle, Sinking), VTMR = 2V
5.8
A
tPLLUG
UV Low to GATE Low
0.7
s
tPHLOG
OV High to GATE Low
LTC4251/LTC4251-1
1
s
UV/OV = 4V refers to UV = 4V for the LTC4251-2.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to VEE unless otherwise
specified.
Note 3: UV/OV = 4V refers to UV = 4V for the LTC4251-2.
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