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PYD20 Manual

 

DC-DC Converter Isolated, 20W, 2x1”, PCB Mount 

 

All parameters are typical values specified at nominal input voltage, nominal output load, 25°C ambient and after a 5 minutes run-in time unless  
otherwise noted. The information presented in this document is believed to be accurate and reliable and may change without notice. 

For additional information, please visit 

https://product.tdk.com/en/power/py

.

 

6/17

DOC-ID: 260921 – Issue 1

8. 

 

P

RODUCT 

N

OMENCLATURE AND 

L

IST OF 

M

ODELS

 

Product Nomenclature: 

PY

bb

ccc

ee

d

z

Family Name

PY

Output Power

20 = 20W

Input Voltage

72W = 8.5-160V

Output Voltage

05 = 5V

12 = 12V or ±12V
15 = 15V or ±15V

24 = ±24V

Output Type

S = Single Output

D = Dual Output

Options

Remote ON/OFF:

Blank = Pos. Logic

N = Negative Logic

-

-

a

Size

D = 2 x 1"

 

 
Model list: 

PYD20-72WS05

 

DC-DC converter isolated, 20W, Input: 8.5-160V, Output: 5V 4A, 2x1 inch, pcb-mount 

PYD20-72WS12

 

DC-DC converter isolated, 20W, Input: 8.5-160V, Output: 12V 1.67A, 2x1 inch, pcb-mount 

PYD20-72WS15

 

DC-DC converter isolated, 20W, Input: 8.5-160V, Output: 15V 1.33A, 2x1 inch, pcb-mount 

PYD20-72WD12

 

DC-DC converter isolated, 20W, Input: 8.5-160V, Output: ±12V ±0.83A, 2x1 inch, pcb-mount 

PYD20-72WD15

 

DC-DC converter isolated, 20W, Input: 8.5-160V, Output: ±15V ±0.67A, 2x1 inch, pcb-mount 

PYD20-72WD24

 

DC-DC converter isolated, 20W, Input: 8.5-160V, Output: ±24V ±0.42A, 2x1 inch, pcb-mount 

 
Output voltages of 24Vdc, 30Vdc or 48Vdc can be achieved by the sum voltage of dual output voltage 

models. In such cases the COM pin is left open. 

COM  5

+ Vout  3

- Vout  4

24V

Load

PYD20-

72WD12

COM  5

+ Vout  3

- Vout  4

30V

Load

PYD20-

72WD15

COM  5

+ Vout  3

- Vout  4

48V

Load

PYD20-

72WD24

 

9.  S

HORT

-

FORM 

D

ATA

 

Input voltage range 

Min. 
Nom.

Max. 

8.5Vdc 
72Vdc 

160Vdc 

 

Input current at no load 

Max. 
Max. 

5mA 
8mA 

For PYD20-72WS05 
For all other models 

Input current at remote OFF 

Typ. 
Max. 

3mA 
5mA 

For all models 
For all models 

Output power 

Max. 

20W 

For all models 

Output current 

Nom.
Nom.
Nom.
Nom.
Nom.

Nom. 

4.0A

 

1)

 

1.67A

 

1)

 

1.33A

 

1)

 

±0.833A

 

1)

 

±0.667A

 

1)

 

±0.417A

 

1)

 

For 5V model 
For 12V model 
For 15V model 
For ±12V model 
For ±15V model 

For ±24V model 

Output voltage adjustment range 

Max. 

-20%/+15% 
Not adjustable 

For single output voltage models 
For dual output voltage models 

Summary of Contents for PYD20 Series

Page 1: ...11 13 Protection Features 11 14 Approvals and Regulatory Compliances 12 15 Rail Applications 12 16 Thermal Consideration and Derating 13 17 EMC Considerations 13 18 Remote ON OFF Function 15 19 Outpu...

Page 2: ...mm Industry Standard Footprint 3000Vac Input to Output Isolation 8 5 160V 18 1 Wide range Input Single or Dual Output Voltages Available EN 50155 Railway Compliant IEC 62368 1 ICT Approved High Shock...

Page 3: ...should occur during installation or operation immediately turn power off and send unit to the factory for inspection Install the device in an enclosure providing protection against electrical mechanic...

Page 4: ...5 of the total load For single output voltage models the output voltage can be adjusted with an external resistor connected between the TRIM pin and the output voltage The device is equipped with an...

Page 5: ...diode should be at least equal to the maximum possible input voltage Capacitor C1 and Diode D2 These two components provide higher transient resistance surge and burst at the input and are required if...

Page 6: ...olated 20W Input 8 5 160V Output 15V 1 33A 2x1 inch pcb mount PYD20 72WD12 DC DC converter isolated 20W Input 8 5 160V Output 12V 0 83A 2x1 inch pcb mount PYD20 72WD15 DC DC converter isolated 20W Inp...

Page 7: ...Altitude Max 5000m 16 400ft Atmospheric pressure 110 54kPa Vibration 20Hz 1kHz 0 04g2 Hz 1 2kHz 6dB octave 60 minutes per axis According to MIL STD 810F random vibration units are operational Shock 50...

Page 8: ...ses vs output load PYD20 72WD12 Efficiency and power losses vs output load All parameters are typical values specified at nominal input voltage nominal output load 25 C ambient and after a 5 minutes r...

Page 9: ...l parameters are typical values specified at nominal input voltage nominal output load 25 C ambient and after a 5 minutes run in time unless otherwise noted The information presented in this document...

Page 10: ...Through hole 0 051 1 30 Top view pad 0 064 1 63 Bottom view pad 0 102 2 60 Pin assignment Pin Single output Dual outputs 1 V Input V Input 2 V Input V Input 3 V Output V Output 4 TRIM V Output 5 V Ou...

Page 11: ...Input surge voltage Max 200Vdc For maximal 100ms Output over voltage protection OVP 6 2Vdc 15Vdc 18Vdc 15Vdc 18Vdc 30Vdc Zener diode type For 5V output For 12V output For 15V output For 12V output Fo...

Page 12: ...e for railroad applications For details see application note for railway application EN 50155 Railway applications Rolling stock Electronic equipment EN 45545 2 Fire protection on railway vehicles Par...

Page 13: ...dels 2 3 1 The derating is not hardware controlled The user has to take this into consideration to stay below the de rated current limits in order not to overload the unit 17 EMC CONSIDERATIONS In ter...

Page 14: ...pacitor 120 F 220V NCC KXJ Aluminum capacitor 470pF 400Vac Y1 capacitor TDK CD series 1 5nF 400Vac Y1 capacitor TDK CD series 2 2nF 400Vac Y1 capacitor TDK CD series 1 4mH 0 4mmx1 13T ACME A151 T10x5x...

Page 15: ...rent of 1mA typically 0 4mA to be activated The maximal allowed voltage open circuit voltage for this pin is 160Vdc Positive logic standard Converter ON open or 4 160V Converter FF closed or 0 1 2V 6...

Page 16: ...2 36 12 72 13 08 13 44 13 8 20 16 12 8 4 3 6 9 12 15 R up 93820 37910 19270 9950 4360 R down 1550 8700 20630 44490 116060 Resistor values for adjusting the 15V output model Output V 12 0 12 6 13 2 13...

Page 17: ...ed age TRIM 4 Vout 5 Vout 3 Load PYD 6 RC 2 Vin 1 Vin D1 C1 R1 D2 Vin Vin D2 To prevent the stored energy from flowing in the wrong direction and not being available for the DC DC converter Use only...

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