DC/DC Converter

WRA_ZP-3WR2 & WRB_ZP-3WR2 Series

2014.04.14-A/3

Page 2 of 6

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WRA4805ZP-3WR2

48

(36-75)

80

±5

±300/±15

82

2200

--

WRA4812ZP-3WR2

±12

±125/±6

84

1800

WRA4815ZP-3WR2

±15

±100/±5

85

1000

WRB4803ZP-3WR2

3.3

909/46

76

4700

WRB4805ZP-3WR2

5

600/30

82

4700

WRB4812ZP-3WR2

12

250/12

86

2700

WRB4815ZP-3WR2

15

200/10

86

2200

Note:

①

. Absolute maximum rating without damage on the converter, but it isn't recommended;

②

. For dual output converter, the given value is the same for each output.

Input Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Input Current (full load /no-load)

5VDC input

--

811/40

--

mA

12VDC input

309/30

24VDC input

155/15

48VDC input

77/5

Reflected Ripple Current

5VDC input

--

20

--

12VDC input

30

24VDC input

30

48VDC input

30

Input impulse Voltage(1sec.max.)

5VDC input

-0.7

--

12

VDC

12VDC input

--

25

24VDC input

--

50

48VDC input

--

100

Starting Voltage

5VDC input

--

--

4.5

12VDC input

--

--

9

24VDC input

--

--

18

48VDC input

--

--

36

Input Filter

Pi filter

Output Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Output Voltage Accuracy

--

±1

±3

%

No load output Voltage Accuracy Input voltage range

--

±1.5

±5

Balance of Output Voltage

Dual output, balanced load

--

±0.5

±1

Linear Regulation

Full load, the input voltage is from low voltage to

high voltage

--

±0.2

±0.5

Load Regulation

5%-100% load

--

±0.2

±0.5

Transient Recovery Time

25% load step change

--

0.5

2

ms

Transient Response Deviation

--

±2

±5

%

Temperature Coefficient

Full load

--

±0.02

±0.03

C

Ripple&Noise*

20MHz bandwidth

--

50

80

mV p-p

Short circuit Protection

Input voltage range

Continuous, self-recovery

Note: * Ripple and noise are measured by “parallel cable” method, please see DC-DC Converter Application Notes for specific operation.

General Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Insulation Voltage

Input-output, with the test time of 1 minute and the

leak current lower than 1mA

1500

--

--

VDC

Insulation Resistance

Input-output, isolation voltage 500VDC

1000

--

--

MΩ