DC/DC Converter

PVxx-27BxxR2 Series

2015.02.27-A/1

Page 4 of 7

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PV10-27B05R2

PV10-27B09R2

PV10-27B24R2

50

55

60

65

70

75

80

85

90

95

100

100

200

400

600

800

1000

Input Voltage(VDC)

Efficiency Vs Input Voltage(Full Load)

PV10-27B05R2

PV10-27B09R2

PV10-27B24R2

20

30

40

50

60

70

80

90

100

10

20

30

40

50

60

70

80

90 100

Output Power Percentage(%)

Efficiency Vs Output Load(Vin=500VDC)

PV15-27B12R2

PV15-27B15R2

PV15-27B24R2

60

65

70

75

80

85

90

100

200

400

600

800

1000

Input Voltage(VDC)

Efficiency Vs Input Voltage(Full Load)

PV15-27B12R2

PV15-27B24R2

PV15-27B15R2

50

55

60

65

70

75

80

85

90

10

20

30

40

50

60

70

80

90

100

Output Power Percentage(%)

Efficiency Vs Output Load(Vin=500VDC)

Design Reference

1. Typical application circuit

+Vo

-Vo

TVS

+

+INPUT

-INPUT

+Vin

-Vin

MOV

FUSE

NTC

C1 C2

RL

DCDC

Fig. 1

Model

FUSE

MOV

NTC

C1(μF)

C2(μF)

TVS

PV05-27B05R2

1A

slow fusing

TVR14142

(Thinking)

10D-11

1

220

SMBJ7.0A

PV10-27B05R2

220

SMBJ7.0A

PV10-27B09R2

120

SMBJ12A

PV10-27B24R2

68

SMBJ33A

PV15-27B12R2

2A

slow fusing

120

SMBJ15A

PV15-27B15R2

120

SMBJ20A

PV15-27B24R2

68

SMBJ33A

Note:

Output filtering capacitor C2 is electrolytic capacitor, it is recommended to apply electrolytic capacitor with high frequency and low resistance. For

capacitance and current of capacitor please refer to manufacture’s datasheet. Capacitance withstand voltage derating should be 80% or above. C1 is

ceramic capacitor, which is used to filter high-frequency noise. TVS is a recommended component to protect post-circuits if converter fails.

2. EMC solution-recommended circuit

+

+

+

+

+INPUT

-INPUT

R3

R4

R5

R6

C3

C4

C5

C6

+Vin

-Vin

+Vo

-Vo

LDM

MOV

NTC

FUSE

C2

C1

TVS

RL

+

DC/DC

LCM

Fig 2(Output external circuit refer to the typical application circuit)