LT8302HS8E-3-WPBF Просмотр технического описания (PDF) - Analog Devices

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производитель

LT8302HS8E-3-WPBF

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

Analog Devices 

LT8302/LT8302-3

TYPICAL APPLICATIONS

8V to 32VIN/12VOUT Isolated Flyback Converter

VIN

8V TO 32V

C1

10µF

R1

806k

R2

232k

C2

1µF

VIN

EN/UVLO SW

LT8302/LT8302-3

GND

RFB

INTVCC

RREF

TC

Z1

D1

R6

OPEN

D2

T1

C3

1:1

470pF

•

R3 9µH

9µH

39Ω

•

R4

121k

VOUT+

12V

5mA TO 0.8A (VIN = 12V)

C4 5mA TO 1.1A (VIN = 24V)

47µF

VOUT–

D1: DIODES DFLS1100

D2: DIODES PDS360

R5

T1: SUMIDA 12387-TO79

10k

Z1: CENTRAL CMZ5934B

8302 TA02a

Efficiency vs Load Current

95

90

85

80

75

70

65

0

VIN = 12V

VIN = 24V

200 400 600 800 1000 1200

LOAD CURRENT (mA)

8302 TA02b

Load and Line Regulation

12.4

12.2

12.0

11.8

11.6

11.4

11.2

0

VIN = 12V

VIN = 24V

200 400 600 800 1000 1200

LOAD CURRENT (mA)

8302 TA02c

VIN

8V TO 32V

C1

10µF

8V to 32VIN/3.3VOUT Isolated Flyback Converter

R1

806k

R2

232k

C2

1µF

VIN

EN/UVLO SW

LT8302/LT8302-3

GND

RFB

INTVCC

RREF

TC

Z1

D1

R6

105k

D2

T1

C3

4:1

470pF

•

R3 9µH

0.56µH

39Ω •

R4

140k

VOUT+

3.3V

20mA TO 2.7A (VIN = 12V)

C4 20mA TO 3.8A (VIN = 24V)

470µF

VOUT–

D1: DIODES DFLS1100

D2: DIODES PDS1040L

R5

T1: WURTH 750311625

10k

Z1: CENTRAL CMZ5934B

8302 TA03

For more information www.analog.com

Output Temperature Variation

3.50

VIN = 12V

3.45 IOUT = 1A

3.40

3.35

RTC = 105k

3.30

3.25

RTC = OPEN

3.20

3.15

3.10

–50 –25 0 25 50 75 100 125 150

AMBIENT TEMPERATURE (°C)

8302 TA03b

Rev. G

21

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