LT1768I View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT1768I Datasheet PDF : 20 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LT1768
Switching Frequency vs Temperature
400
390
380
370
360
350
340
330
320
310
300
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1768 G10
FAULT Pin Saturation Voltage vs
Current
450
IDIO1 = 0µA
400 IDIO2 = 0µA
350
300
250
200
150
100
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
IFAULT (mA)
1768 G13
DIO Pin Voltage vs Current
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0 2 4 6 8 10 12 14 16 18 20
DIO CURRENT (mA)
1768 G24
PWM Frequency vs Temperature
124
120
CT = 0.22µF
VPWM = 2.5V
116
112
108
104
100
96
92
88
84
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1768 G11
Sense Pin Bias Current vs
Temperature
50
45 VSENSE = 0V
40
35
30
25
20
15
10
5
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1768 G14
DIO Pin Voltage vs Current
– 2.0
–1.8
–1.6
–1.4
–1.2
–1.0
– 0.8
– 0.6
– 0.4
– 0.2
0
0 – 2 – 4 – 6 – 8 –10 –12 –14 –16 –18 –20
DIO CURRENT (mA)
1768 G20
FAULT Pin Saturation Voltage vs
Temperature
0.250
0.225
0.200
0.175
0.150
0.125
0.100
0.75
0.50
0.25
0
–50 –25
IDIO1 = 0µA
IDIO2 = 0µA
IFAULT = 1mA
0 25 50 75 100 125
TEMPERATURE (°C)
1768 G12
Maximum Gate Voltage vs
Temperature
15.00 IGATE = –10mA
14.50
14.00
13.50
13.00
VIN = 24V
12.50
12.00
11.50
11.00
10.50
VIN = 12V
10.00
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1768 G15
VC Clamp Voltage vs Current
3.75
3.74
3.73
3.72
3.71
3.70
3.69
3.68
3.67
3.66
3.65
0
50 100 150 200 250 300 350 400 450 500
VC CURRENT (µA)
1768 G25
5
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