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WD1000P Series Power Module

WD1000P series DC-DC Power Module is a new generation product developed by W&H-GAMAY. It has high voltage and wide range power input (200-400Vdc), and adjustable output (22-30.8Vdc), the output power is 1000W; Standard all brick package, closed structure.

Product introduction

Product Introduction
WD1000P series DC-DC Power Module is a new generation product developed by W&H-GAMAY. It has high voltage and wide range power input (200-400Vdc), and adjustable output (22-30.8Vdc), the output power is 1000W; Standard all brick package, closed structure; It has the characteristics of High reliability, high efficiency, high power density and low ripple noise. It can be widely used in radar, communication, industrial control,etc.

Main Features
    1. Typical Efficiency: 93.5%;
    2. Adjustable Output Voltage: - 20%~+ 10%;
    3. Input Over and Under Voltage Protection;
    4.  Output over-voltage, over-current, short circuit and over temperature protection;
    5. 4250vdc Isolation and withstand voltage;
    6. With current sharing function.


Model Designation


Product Parameter

Name

Parameter

Remark

Product Model

WD1000P-540S28T

WD1000P-300S28T

 

Rated input voltageVdc

500

300

 

Input Voltage Range (Vdc)

380-650

200-400

 

Output Voltage (Vdc)

28

 

Output Adjustable Range

20%+10%

 

Maximum Output CurrentA

35.7

 

Typical Value of Ripple and NoisemV

100

 

Efficiency %

93.5

 

Overall Dimension

116.8*61*13.9mmL*W*H

 

Note1, Unless otherwise stated, all specifications are measured at the operating temperature of 25, rated input, full load output conditions;

2, Above products can provide M file, for other output voltage, please contact us.

 1. Input Characteristics

Items

Minimum

Typical Value

Maximum

Unit

 

Remark

Model

WD1000P-500S28T

Input

Voltage Range

380

500

650

Vdc

 

Under Voltage  Protection Point

345

355

365

Vdc

Output with half load

Under Voltage Recovery Point

355

365

375

Vdc

Output with half load

Over voltage Protection Point

675

685

700

Vdc

Output with half load

Over voltage Recovery Point

650

665

680

Vdc

Output with half load

Model

WD1000P-300S28T

Input

Voltage Range

200

300

400

 

 

Under Voltage  Protection Point

180

185

190

 

 

Under Voltage Recovery Point

190

195

200

 

 

Over voltage Protection Point

410

420

430

 

 

Over voltage Recovery Point

400

405

410

 

 

ON/OFF Remote control

Negative Logic)

2.4

 

18.0

Vdc

High level, without output

-1

 

0.8

Vdc

Dangling or low level, normal output

Maximum Input Current

 

 

5.5

A

Vin=380Vdc,Po=1000W

No-load Input Current

 

40

60

mA

Rated input, no load output  Tc=25℃

Input Great Instantaneous Current

 

 

5

A2s

Vin=500Vdc, External high frequency low ESR 470µF; 22uF electrolytic capacitor , inductance 12uH

Input External Capacitor

22

47

100

µF

High frequency low ESR aluminum electrolytic capacitor, withstand voltage≥800 Vdc;

When the operating temperature is lower than -25 , add a 2.2μF/1000Vdc CBB capacitor.

  2. Output Characteristics

Items

Minimum

Typical Value

Maximum

Unit

Remark

Output Voltage Set Value

27.72

28.00

28.28

Vdc

Rated input, output with half load

Output Voltage Regulated Accuracy

 

 

±1

%

Input full range,output no-load to full load

Voltage Regulation

 

 

±0.2

%

Input full range,rated output current

Load Regulation

 

 

±0.5

%

Rated input, output full range

Output Adjustable Range

-10

 

+10

%Vo

Output power≤Maximum output power

output current ≤Maximum current output

Current-sharing Bus Voltage

4.75

5.00

5.25

Vdc

Rated input, output full load

Sharing Current

 

±5

±10

%

Vout=28Vdc,Io=17.85-35.7A

Output Over-current Protection

40.0

42.0

44.0

A

Vin=500Vdc,Vout=28Vdc;

Constant current firstly, then hiccups, and self-recovery

Output Over-voltage Protection

33

35

37

Vdc

Vin=500Vdc,Io=35.7A;Locking mode

Auxiliary Power Output Voltage

9

11

13

Vdc

Output  0-20mA

Auxiliary Power Output Current

 

 

20

mA

 

Ripple + Noise (peak-to-peak )

 

200

350

mV

Test method is shown in Figure (16)

Output External Capacitor

1000

1500

 

μF

Solid capacitor or polymer capacitor

Output Capacitive Load

 

 

3000

μF

Pure resistance mode

Output Voltage Rise Time

 

20

40

ms

Output voltage from 10% rise to 90%(Rated output capacitance)

Remote Boot Output Voltage Rise Time

 

20

40

ms

 The input is powered on first, then turn ON/OFF, the output voltage from 10% rise to 90%(Rated output capacitance).

Turn on Delay

 

 

1500

ms

The input voltage rises to the undervoltage restore Point until the output voltage rises to 10%.

Remote Startup Delay

 

600

1000

ms

Input Power-on first, and then turn ON/OF until the output voltage rises to 10%.

Dynamic Response to Overshoot Amplitude

 

840

1400

mV

25%-50%-25%,50%-75%-50% load step change,di/dt= 2.5A/µs, output external 1000μF solid-state capacitor or high-molecular polymer capacitor.

Dynamic Response Recovery Time

 

500

1000

uS

On off Output Voltage Overshoot Amplitude

 

 

5

%Vout

 

Efficiency

100% Load

91.5

93.5

 

%

Vin=500Vdc,Vo=28Vdc,Tc=25℃

50% load

91.5

93.5

 

%

  3. General Characteristics

Items

Minimum

Typical Value

Maximum

Unit

Remark

Isolation Voltage

 

input-output

4250

 

 

Vdc

Testing Condition:10mA/60s;

No breakdown.

Input to Case

3535

 

 

Vdc

Output to Case

1500

 

 

Vdc

Insulation Resistance

100

 

 

Relative humidity:90%;

Under standard atmospheric pressure, 500Vdc voltage.

MTBF

2

 

 

MHrs

Rated input, rated output,Tc=25℃

Operation Temperature

-55

 

80

M grade, aluminum substrate temperature

-40

 

80

T grade, aluminum substrate temperature

Storage Temperature

-55

 

125

Working Temperature

Relative Humidity

5

 

95

%

non-condensing

Storage Humidity

5

 

95

%

non-condensing

Size

116.8*61*13.9

mm

L * W * H

Weight

225

g


Structure & Size

  1. Overall Dimensions (Unit:mm)


Note
    1.  Case Material: Aluminum substrate + Plastic Enclosure;
    2.  For Pin 5、6、13-18, the diameter is 2.0mm; Other pin diameters are 1.0mm, Pin Tolerance: ±0.1mm;
    3.  Unmarked Tolerance: x.x±0.5mm.

  2. Pin Definition

Pin

Name

Function

1

NC

NOT CONNECTED

2

NC

NOT CONNECTED

3

ON/OFF+

ON/OFF Remote control input positive end

4

ON/OFF-

ON/OFF Remote control input negative end

5

Vin+

Input voltage positive end

6

Vin-

Input voltage negative end

7

Vaux

Auxiliary power output positive end(reference: Vout-)

8

Start_Sync

Synchronize startoptional

9

Ishare

Current sharing end

10

Trim

Output voltage trimmer end

11

S(+)

Remote compensation positive input end

12

S(-)

Remote compensation negative input end

131415

Vout-

Output voltage negative end

161718

Vout+

Output voltage positive end


Typical Application 
The power module has a built-in filter, which can meet the general application requirements. If a power system with higher requirements is needed, an external filter network can be added to the input circuit. The typical application is shown as Figure (13).

                                          Figure (13) Typical application circuit

Components recommendations

Components Tag Number

Description

R1,R2

4701/2W

C1C2

47μF/450Vd Capacitor

C3

solid-state capacitor or high-molecular polymer capacitor,1500μF/50V

Note:
    1. When the operating temperature is lower than -25 ° C and the input voltage rises at a fast rate (for example, greater than 10Vdc/μs), to prevent module damage caused by high input surge voltage, It is recommended that at least one CBB capacitor of 2.2μF/1000vdc and no less than 20μF input capacitance (under test condition: -55℃ and10Khz) be added at the input end, or other anti-surge circuits be added. In applications, it is recommended that according to the actual test result.
    2. When adding EMI circuit, please match the input capacitance to prevent high surge voltage at the input, which may damage the module.
    3.There is no fuse inside the module. To improve security, connect a fast fusing type fuse externally at the module input. The fuse is connected to the Vin(+),  and the fast fusing 10A fuse is selected.
    4. Please use the shortest way to connect to the module terminal.
    5. Please confirm the allowable pulsating current value of the capacitor used.

Remote Control Switch

The control mode of the remote terminal is: negative logic. 
Status of the power module as following:

Control Method

electrical level of ON/OFF

low level

dangling

high level

negative logic

Module turn on

Module turn on

Module turn off

               
                                   Connection diagram of ON/OFF