PPM-Series – PPM10-E-xxELF – Single Output - Plastic Case

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App Notes:

Measure

Typical Applications PPM-Series

FIGURE 1

FIGURE 2

External Typical Value

Model

C1

C2

TVS

PPM10-E-3.3ELF 220µF/10V

0.1µF/50V

P6KE6.8A

PPM10-E-05ELF

220µF/10V

0.1µF/50V

P6KE6.8A

PPM10-E-09ELF

120µF/25V

0.1µF/50V

P6KE12A

PPM10-E-12ELF

120µF/25V

0.1µF/50V

P6KE20A

PPM10-E-15ELF

120µF/25V

0.1µF/50V

P6KE20A

PPM10-E-24ELF

68µF/35V

0.1µF/50V

P6KE30A

Note

1.Output filtering capacitors C1 is electrolytic capacitors. It is recommended to use high frequency and low

impedance electrolytic capacitors. For capacitance and current of capacitor, please refer to manufacture’s

datasheet. Voltage derating of capacitor should be 80% or above. C2 is ceramic capacitor - it is used to

filter high frequency noise. TVS is a recommended component to protect post-circuits (if converter fails).

2. MOV is required for PPM10-E-xxELF models. Model 471KD05 is used to protect the device under surge.

3. It is recommended to connect FUSE (2A/250V slow blow). External input NTC model is recommended to

use (5D-9).

4. If common requirement to EMC performance, refer to figure 1, if higher requirement to EMC performance,

refer to figure 2.

C3,C4:Y capacitor, recommended parameter 2200pF/400V;

C5:X capacitor, recommended parameter 0.1uF/275V;

NF: common model choke, recommended inductance is about 10mH-30mH.