Parallel Lines Measure

2

C1

C2

Copper sheet

Load

25.4m m

25.4m m

Connect

Oscillograph Probe

Fuse

Typical Applications PPM-Series

PPMxx-x-xxELF (single Output)

L

+Vo

-Vo

L

N

N

C1 C2

Fuse

FG

FG

Tvs 1 RL

NT C

Remarks

1.Output filtering capacitor C5, C3 and C1 are

electrolytic capacitor. It is recommended to use

high frequency and low resistance electrolytic

capacitor. For capacitance and current of the

capacitor

please

refer

to

suppliers’

specifications. Voltage derating of capacitor

should be 80% or above.C2, C4 and C6

eliminate high frequency noise. TVS is a

recommended

component

to

protect

post-

circuits (when converter fails).

2. External input NTC is recommended to use

5D-9 (Only PPM10 model and PPM15 model)

External Typical Value

Partnumber

C1

Partnumber

C1

PPM05-A-3.3E

330

PPM15-C-3.3E

680

PPM05-A-05E

330

PPM15-C-05E

680

PPM05-A-09E

120

PPM15-C-09E

470

PPM05-A-12E

120

PPM15-C-12E

220

PPM05-A-15E

68

PPM15-C-15E

220

PPM05-A-24E

68

PPM15-C-24E

68

PPM15-C-48E

33

PPM10-B-3.3E

470

PPM10-B-05E

330

PPM20-D-3.3E

330

PPM10-B-09E

120

PPM20-D-05E

330

PPM10-B-12E

120

PPM20-D-12E

220

PPM10-B-15E

120

PPM20-D-15E

220

PPM10-B-24E

68

PPM20-D-24E

220

PPM25-D-12E

330

PPM25-D-15E

330

PPM25-D-24E

120

PPM25-D-48E

68

TRIM (only PPM20/25-D-xxE

Note: Value for R1, R2, R3, and Vref refer to the following table.

a: User-defined parameter, no actual meanings.

3.3V

5V

12V

15V

24V

48V

R1(K )

2

3.3

3.83

7.5

8.66

1.2

R2(K )

1.2

3.3

1

1.5

1

22

R3(K )

1

1

1

1

1

1.2

Vref(V)

1.24

2.5

2.5

2.5

2.5

2.5

Vot(V)

Output voltage of Trim, variation ≤ ±10%

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