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LT8302MPS8E

42VIN Micropower No-Opto Isolated Flyback Converter with 65V/3.6A Switch

Linear Technology 

LT8302

Typical Performance Characteristics TA = 25°C, unless otherwise noted.

EN/UVLO Enable Threshold

1.240

1.235

1.230

RISING

1.225

1.220

1.215

FALLING

1.210

1.205

1.200

–50 –25

0 25 50 75 100 125 150

TEMPERATURE (°C)

8302 G10

INTVCC Voltage vs VIN

3.10

3.05

3.00

IINTVCC = 0mA

2.95

IINTVCC = 10mA

2.90

2.85

2.80

5

10 15 20 25 30 35 40 45

VIN (V)

8302 G13

RREF Regulation Voltage

1.010

1.008

1.006

1.004

1.002

1.000

0.998

0.996

0.994

0.992

0.990

–50 –25 0 25 50 75 100 125 150

TEMPERATURE (°C)

8302 G16

EN/UVLO Hysteresis Current

5

4

3

2

1

0

–50 –25

0 25 50 75 100 125 150

TEMPERATURE (°C)

8302 G11

INTVCC UVLO Threshold

2.8

2.7

2.6

RISING

2.5

FALLING

2.4

2.3

2.2

–50 –25 0 25 50 75 100 125 150

TEMPERATURE (°C)

8302 G14

RREF Line Regulation

1.010

1.008

1.006

1.004

1.002

1.000

0.998

0.996

0.994

0.992

0.990

0

10

20

30

VIN (V)

40

50

8302 G17

INTVCC Voltage vs Temperature

3.10

3.05

3.00

IINTVCC = 0mA

2.95

IINTVCC = 10mA

2.90

2.85

2.80

–50 –25 0 25 50 75 100 125 150

TEMPERATURE (°C)

8302 G12

(RFB-VIN) Voltage

40

30

IRFB = 125µA

20

10

IRFB = 100µA

0

–10

–20

IRFB = 75µA

–30

–40

–50 –25

0 25 50 75 100 125 150

TEMPERATURE (°C)

8302 G15

TC Pin Voltage

1.5

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

–50 –25

0 25 50 75 100 125 150

TEMPERATURE (°C)

8302 G18

For more information www.linear.com/LT8302

8302fa

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