BAV20W 查看數據表（PDF） - Linear Technology
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BAV20W Datasheet PDF : 24 Pages
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LT8300
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 24V, VEN/UVLO = VIN unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
UNIT
VIN
Input Voltage Range
VIN UVLO Threshold
Rising
Falling
6
100
V
5.8
6
V
3.2
V
IQ
VIN Quiescent Current
VEN/UVLO = 0.3V
VEN/UVLO = 1.1V
Sleep Mode (Switch Off)
Active Mode (Switch On)
1.2
2
µA
200
µA
70
µA
330
µA
EN/UVLO Shutdown Threshold
EN/UVLO Enable Threshold
For Lowest Off IQ
Falling
Hysteresis
l 0.3
0.75
V
l 1.199 1.223 1.270
V
0.016
V
IHYS
fMAX
fMIN
tON(MIN)
tOFF(MIN)
tOFF(MAX)
ISW(MAX)
ISW(MIN)
EN/UVLO Hysteresis Current
Maximum Switching Frequency
Minimum Switching Frequency
Minimum Switch-On Time
Minimum Switch-Off Time
Maximum Switch-Off Time
Maximum SW Current Limit
Minimum SW Current Limit
SW Over Current Limit
VEN/UVLO = 0.3V
VEN/UVLO = 1.1V
VEN/UVLO = 1.3V
Backup Timer
To Initiate Soft-Start
–0.1
0
0.1
µA
2.2
2.5
2.8
µA
–0.1
0
0.1
µA
720
750
780
kHz
6
7.5
9
kHz
160
ns
350
ns
200
µs
l 228
260
292
mA
l 34
52
70
mA
520
mA
RDS(ON)
ILKG
IRFB
tSS
Switch On-Resistance
Switch Leakage Current
RFB Regulation Current
RFB Regulation Current Line Regulation
Soft-Start Timer
ISW = 100mA
VIN = 100V, VSW = 150V
6V ≤ VIN ≤ 100V
10
Ω
0.1
0.5
µA
l 98
100
102
µA
0.001 0.01
%/V
2.7
ms
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.
Note 2: The SW pin is rated to 150V for transients. Depending on the
leakage inductance voltage spike, operating waveforms of the SW pin
should be derated to keep the flyback voltage spike below 150V as shown
in Figure 5.
Note 3: The LT8300E is guaranteed to meet performance specifications
from 0°C to 125°C operating junction temperature. Specifications over
the –40°C to 125°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
The LT8300I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT8300H is guaranteed over the full –40°C to
150°C operating junction temperature range. The LT8300MP is guaranteed
over the full –55°C to 150°C operating junction temperature range. High
junction temperatures degrade operating lifetimes. Operating lifetime is
derated at junction temperature greater than 125°C.
Note 4: The LT8300 includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 150°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
8300f
3
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