LT3761 Просмотр технического описания (PDF) - Linear Technology
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LT3761 Datasheet PDF : 28 Pages
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LT3761
Typical Performance Characteristics TA = 25°C, unless otherwise noted.
VISP-ISN Threshold
vs CTRL Voltage
300
250
200
150
100
50
0
–50
0
0.5
1
1.5
CTRL VOLTAGE (V)
2
3761 G01
FB Regulation Voltage (VFB)
vs Temperature
1.270
1.265
1.260
1.255
1.250
1.245
1.240
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3761 G04
VISP-ISN Threshold
vs ISP Voltage
260
255
250
245
240
0
20
40
60
ISP VOLTAGE (V)
80
3761 G02
VISP-ISN Threshold vs FB Voltage
300
CTRL = 2V
250
200
150
CTRL = 0.5V
100
50
0
1.20 1.21 1.22 1.23 1.24 1.25 1.26
FB VOLTAGE (V)
3761 G05
Full-Scale VISP-ISN Threshold
vs Temperature
260 CTRL = 2V
258
256
ISN = 0
254
252
250
ISP = 48V
248
246
244
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3761 G03
VREF Source Current
vs Temperature
200
190
180
170
160
150
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3761 G06
VREF Voltage vs Temperature
2.06
2.05
2.04
2.03
2.02
2.01
2.00
1.99
1.98
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3761 G07
Switching Frequency vs RT
1000
900
800
700
600
500
400
300
200
100
10
RT (kΩ)
100
3761 G08
Switching Frequency
vs Temperature
420
RT = 25.5k
415
410
405
400
395
390
385
380
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3761 G09
3761f
5
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