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LT1768IGN 数据表(PDF) 5 Page - Linear Technology

部件名 LT1768IGN
功能描述  High Power CCFL Controller for Wide Dimming Range and Maximum Lamp Lifetime
PDF  20 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT1768IGN 数据表(HTML) 5 Page - Linear Technology

  LT1768IGN Datasheet HTML 1Page - Linear Technology LT1768IGN Datasheet HTML 2Page - Linear Technology LT1768IGN Datasheet HTML 3Page - Linear Technology LT1768IGN Datasheet HTML 4Page - Linear Technology LT1768IGN Datasheet HTML 5Page - Linear Technology LT1768IGN Datasheet HTML 6Page - Linear Technology LT1768IGN Datasheet HTML 7Page - Linear Technology LT1768IGN Datasheet HTML 8Page - Linear Technology LT1768IGN Datasheet HTML 9Page - Linear Technology Next Button
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LT1768
5
TYPICAL PERFOR A CE CHARACTERISTICS
Switching Frequency vs Temperature
TEMPERATURE (
°C)
400
390
380
370
360
350
340
330
320
310
300
1768 G10
–50
–25
0
25
50
75
100
125
TEMPERATURE (
°C)
124
120
116
112
108
104
100
96
92
88
84
1768 G11
–50
–25
0
25
50
75
100
125
CT = 0.22µF
VPWM = 2.5V
TEMPERATURE (
°C)
0.250
0.225
0.200
0.175
0.150
0.125
0.100
0.75
0.50
0.25
0
1768 G12
–50
–25
0
25
50
75
100
125
IDIO1 = 0µA
IDIO2 = 0µA
IFAULT = 1mA
IFAULT (mA)
0
450
400
350
300
250
200
150
100
1.5
2.5
1768 G13
0.5
1.0
2.0
3.0
3.5
IDIO1 = 0µA
IDIO2 = 0µA
TEMPERATURE (
°C)
50
45
40
35
30
25
20
15
10
5
0
1768 G14
–50
–25
0
25
50
75
100
125
VSENSE = 0V
TEMPERATURE (
°C)
15.00
14.50
14.00
13.50
13.00
12.50
12.00
11.50
11.00
10.50
10.00
1768 G15
–50
–25
0
25
50
75
100
125
IGATE = –10mA
VIN = 24V
VIN = 12V
FAULT Pin Saturation Voltage vs
Current
Maximum Gate Voltage vs
Temperature
Sense Pin Bias Current vs
Temperature
PWM Frequency vs Temperature
FAULT Pin Saturation Voltage vs
Temperature
DIO CURRENT (mA)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1768 G24
2468
10
12 14 16
18 20
0
VC CURRENT (µA)
3.75
3.74
3.73
3.72
3.71
3.70
3.69
3.68
3.67
3.66
3.65
1768 G25
0
50 100 150 200 250 300 350 400 450 500
VC Clamp Voltage vs Current
DIO Pin Voltage vs Current
DIO CURRENT (mA)
– 2.0
–1.8
–1.6
–1.4
–1.2
–1.0
–0.8
– 0.6
– 0.4
– 0.2
0
1768 G20
–2 –4 –6 –8 –10 –12 –14 –16 –18 –20
0
DIO Pin Voltage vs Current



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