LT3759H Просмотр технического описания (PDF) - Linear Technology
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LT3759H Datasheet PDF : 32 Pages
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LT3759
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
EN/UVLO Threshold
vs Temperature
1.27
1.25
EN/UVLO RISING
1.23
1.21
EN/UVLO FALLING
1.19
1.17
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3759 G10
GATE Minimum On- and Off-Times
vs Temperature
200
190
180
MINIMUM
OFF TIME
170
160
150
MINIMUM
140
ON TIME
130
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3759 G11
EN/UVLO Hysteresis Current
vs Temperature
2.4
2.2
2.0
1.8
1.6
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3759 G12
INTVCC vs Temperature
5.0
4.8
DRIVE LDO
4.6
4.4
4.2
4.0
3.8
VIN LDO
3.6
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3759 G13
INTVCC Dropout Voltage
vs Current, Temperature
400
VIN = 12V
DRIVE = 4V
300
150°C
200
25°C
–55°C
100
0
0
5
10
15
20
25
INTVCC LOAD (mA)
3759 G16
INTVCC Load Regulation
6.0
5.5
5.0
DRIVE LDO
4.5
4.0
3.5
VIN LDO (DRIVE = 0V)
3.0
2.5
2.0
0
5
10
15
20
25
INTVCC LOAD (mA)
3759 G14
Gate Driver Rise and Fall Time
vs CL
70
INTVCC = 4.75V
60
RISE TIME
50
FALL TIME
40
30
20
10
0
0
3
6
9
CL (nF)
12
15
3759 G17
6
For more information www.linear.com/3759
INTVCC Line Regulation
5.0
DRIVE LDO
4.5
4.0
VIN LDO
3.5
3.0
0
5 10 15 20 25 30 35 40 45
VIN (V)
3759 G15
Gate Driver Rise and Fall Time
vs INTVCC
25
RISE TIME
CL = 3300pF
20
FALL TIME
15
10
5
0
2 2.5
3 3.5 4
INTCCC (V)
4.5 5
3759 G18
3759fc
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