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Although ROHM is continuously working to improve product reliability and quality, semicon-
ductors can break down and malfunction due to various factors.
Therefore, in order to prevent personal injury or fire arising from failure, please take safety 
measures such as complying with the derating characteristics, implementing redundant and 
fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no 
responsibility for any damages arising out of the use of our Poducts beyond the rating specified by 
ROHM.

Examples of application circuits, circuit constants and any other information contained herein are 
provided only to illustrate the standard usage and operations of the Products. The peripheral 
conditions must be taken into account when designing circuits for mass production.

The technical information specified herein is intended only to show the typical functions of and 
examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, 
any license to use or exercise intellectual property or other rights held by ROHM or any other 
parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of 
such technical information.

The Products specified in this document are not designed to be radiation tolerant.

For use of our Products in applications requiring a high degree of reliability (as exemplified  
below), please contact and consult with a ROHM representative : transportation equipment (i.e. 
cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety 
equipment, medical systems, servers, solar cells, and power transmission systems.

Do not use our Products in applications requiring extremely high reliability, such as aerospace 
equipment, nuclear power control systems, and submarine repeaters.

ROHM shall have no responsibility for any damages or injury arising  from non-compliance with 
the recommended usage conditions and specifications contained herein.

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 the accuracy of the information contained  in this 

document. However, ROHM does not warrants that such information is error-free, and ROHM 
shall have no responsibility for any damages arising from any inaccuracy or misprint of such 
information.

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such as the RoHS Directive. For more details, including RoHS compatibility, please contact a 
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non-compliance with any applicable laws or regulations.

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Summary of Contents for BM2P0161-EVK-003

Page 1: ...on has frequency decrease function for higher efficiency Switching frequency jitter function enables lower EMI operation Various functions are included for safety Soft start Frequency Burst Mode VCC O...

Page 2: ...nect to GND terminal 5 AC power meter connect between AC power supply and board 6 Output test equipment connects to output terminal 7 AC power supply switch ON 8 Check that output voltage is 12V 9 Ele...

Page 3: ...o Yuden 1608 0603 C10 1 Ceramic 10 F 35V 10 GMK316AB7106KL TR Taiyo Yuden 3216 1206 C11 1 Y1 Capacitor 2200pF Y1 capacitor DE1E3KX222MB4BP01F Murata C13 1 Electrolytic 1000uF 25V 20 25ZLJ1000M10X20 Ru...

Page 4: ...osaka http www alphatrans jp Product XE2145A AlphaTrans Corp Bobin EI 2506 10PIN Core EE25 20 JSF Figure 4 Connection Diagram Figure 5 Winding structure diagram Table 3 Alpha Trans XE2145A Winding Sp...

Page 5: ...5 20 2018 ROHM Co Ltd No 60UG092E Rev 001 JULY 2018 User s Guide BM2P0161 EVK 003 PCB Size 55 mm x 91 mm Figure 4 Top Silkscreen Top view Figure 5 Bottom Layout Top view...

Page 6: ...tage Range VCC 8 9 V 26 0 V DRAIN 650 V Max Circuit Current ON BM2P0161 0 90 mA Typ BM2P0361 0 65 mA Typ Circuit Current Burst mode 0 30 mA Typ Operating Temperature 40 C 105 C Maximum Junction Temper...

Page 7: ...along with Fly back voltage VOR VOR VO VOR 650V 1 3 max 1 3 Safety margin Please check yourself Duty VOR 650 1 3 380 120 Figure 10 MOSFET Drain Source Voltage Vds Confirmation of Np Ns and Duty max VO...

Page 8: ...wave form touch to GND at the same time primary coil current grow up from GND DCM Dis continuous Current Mode Primary MOSFET turn ON timing has some interval after secondary coil discharge Coil curre...

Page 9: ...s selected EE25 Table 5 Output Power vs transformer core size above table is one of reference please confirmation to transformer manufacturer 1 5 Calculate of primary wiring turn Np The maximum rating...

Page 10: ...e ratings and VCC OVP voltage Transformer parameter of this section result Table 6 Transformer parameter table Core PC47EE25 19 compatible Lp 830 H Np 77 turns Ns 14 turns Nd 18 turns 2 Selection of i...

Page 11: ...ent it maximum value is around 15mA When D2_Vf 1V reverse voltage applied to the VCC diode Vdr VCC max Vf VIN max X This IC has VCC OVP function VCC OVP max 29 0V Reverse voltage of the diode is set s...

Page 12: ...may occur during the instant when the MOSFET is switched from ON to OFF This surge voltage is applied between the MOSFET s Drain and Source so in the worst case damage to MOSFET might occur RCD snubb...

Page 13: ...ith consideration of margins 87 0 7 124V 150V Also diode loss approximate value becomes Pd Vf x Iout 1 0V x 2A 2 0W This board is used schottky barrier diode RB088BGE 150 150V 10A TO 252 package Using...

Page 14: ...ormal When Shunt regulator IC2 Vref 2 495V Vo u1 10 11 12 v Vref u1 33k 5 6k 109 v 2 495V 12 1257V 2 11 Parts for adjustment of control circuit R15 C16 R13 R14 R15 and C11 are parts for phase compensa...

Page 15: ...OUT vs PLOSS 10 8 11 2 11 6 12 0 12 4 12 8 13 2 0 1000 2000 3000 Output Voltage V Output Current mA VIN 90Vac VIN 115Vac VIN 230Vac VIN 264Vac 0 10 20 30 40 50 60 70 80 90 100 0 500 1000 1500 2000 Eff...

Page 16: ...2 132 20 88 12 096 1500 18 14 2 736 86 90 132 23 76 12 094 1700 20 56 3 200 86 53 132 27 99 12 090 2000 24 18 3 810 86 39 132 35 13 12 084 2500 30 21 4 920 85 99 132 OLP 0 000 2500 VIN Vac PIN W VOUT...

Page 17: ...T vs IpPEAK Figure 22 Primary Peak Current IOUT vs IsPEAK 0 10 20 30 40 50 60 70 0 500 1000 1500 2000 Switching Frequency kHz Output Current mA VIN 115Vac VIN 230Vac 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0...

Page 18: ...A Figure 24 VIN 90Vac Output Short Figure 25 VIN 115Vac IOUT 2A Figure 26 VIN 115Vac Output Short Figure 27 VIN 230Vac IOUT 2A Figure 28 VIN 230Vac Output Short Figure 29 VIN 264Vac IOUT 2A Figure 30...

Page 19: ...T 10mA to 1500mA Figure 34 VIN 230Vac IOUT 10mA to 1500mA Output ripple Voltage Figure 35 VIN 115Vac IOUT 2A Figure 36 VIN 230Vac IOUT 2A CH4 Green AC Input Voltage CH1 Yellow VCC Voltage CH3 Purple O...

Page 20: ...c VIN 230Vac IOUT 1 5A IOUT 2A IOUT 1 5A IOUT 2A BM2P0161 65 3 C 82 3 C 68 1 C 71 5 C Transformer 58 1 C 72 3 C 66 6 C 73 4 C 2Nd Diode 68 7 C 80 6 C 68 6 C 78 4 C Diode bridge 62 3 C 70 4 C 44 5 C 48...

Page 21: ...ch technical information The Products specified in this document are not designed to be radiation tolerant For use of our Products in applications requiring a high degree of reliability as exemplified...

Page 22: ...and close to the board may result in discharge and lead to severe injury or death Therefore DO NOT touch the board with your bare hands or bring them too close to the board In addition as mentioned ab...

Page 23: ...ADP1714 3 3 EVALZ ADP1715 3 3 EVALZ ADP1716 2 5 EVALZ ADP1740 1 5 EVALZ ADP1752 1 5 EVALZ ADP1828LC EVALZ ADP1870 0 3 EVALZ ADP1871 0 6 EVALZ ADP1873 0 6 EVALZ ADP1874 0 3 EVALZ ADP1882 1 0 EVALZ ADP...

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