BP5221A Rohm Semiconductor, BP5221A Datasheet
![CONVERTER DC/DC 5V OUT .5A 9-SIP](/photos/8/70/87013/bp5220_sml.jpg)
BP5221A
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BP5221A Summary of contents
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... Step-down DC/DC Converters(Non-isolated) BP5220A / BP5221A / BP5222A Description The BP5220A, BP5221A, BP5222A, are converters that use a pulse width modulation (PWM) system. They contain control circuits, switching devices, rectifiers, and coils, and operate by only connecting smoothing capacitor. With a high efficiency of power conversion, the modules are available in stand-alone 9-pin SIP packages with no heat sink required ...
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... BP5220A/BP5221A/BP5222A Block diagram BP5220A / BP5221A / BP5222A POWER SUPPLY CIRCUIT 9 Vi Electrical characteristics BP5220A (Unless otherwise noted : Vi=15V, Io=0.5A, SW=1, Ta=25˚C) Parameter Symbol Input voltage Vi Output voltage V Output current Line regulation Load regulation Output ripple voltage Power conversion efficiency f Switching frequency ...
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... ROHM Co., Ltd. All rights reserved. Min. Typ. Max. Unit 11 190 kHz SW 4.7 ON 200 OFF BP5220A / BP5221A / BP5222A Frequency counter Fig.1 T 3/7 Data Sheet Conditions Vi=15V to 38V Io=0.05A to 0.5A Io=0.5A Vo>11.2V Vo<0.1V, SW=2 Output Switching frequency=1/T Output ripple voltage 2010.03 - Rev. B ...
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... Be sure to use fuse for safety 120pF BP5220A / BP5221A / BP5222A 100 OFF 100k 2SC1740 Fig.6 4/7 Data Sheet BP5220A / BP5221A / BP5222A Fig.2 BP5220A / BP5221A / BP5222A Output OFF Fig 24V 0.2 0.4 0.6 0.8 1.0 1.2 OUTPUT CURRENT (A) Fig 470 F 2010.03 - Rev. B ...
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... ROHM Co., Ltd. All rights reserved. (2) When increasing the output voltage 100 F VR BP5220A / BP5221A / BP5222A sure to use 470 F 100 F fuse for safety. 470k 2SC1740R + Fig.9 5/7 Data Sheet BP5220A / BP5221A / BP5222A sure to use VR 470 F fuse for safety. Fig 2010.03 - Rev ...
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... Vi=8 to 15V Vi=34V Vi=25V 800 Vi=30V Vi=38V 600 400 200 AMBIENT TEMPERATURE : Ta( °C) Fig.10 Derating curve BP5221A 0.6 0.5 Vi=8 to 15V Vi=30 to 38V 0.4 0.3 0.2 0 AMBIENT TEMPERATURE : Ta( °C) Fig.13 Derating curve www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. ...
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... ROHM Co., Ltd. All rights reserved. 100 Vi=23V 80 Vi=38V Vi=30V 120 0 0.1 0.2 0.3 0.4 0.5 OUTPUT CURRENT : I (A) O Fig.17 Efficiency BP5220A / BP5221A / BP5222A Voltage difference between pins 2 and 9 Fig.19 ASO measurement circuit 7/7 Data Sheet 10 Pw=1ms 4.5A 2.2A Pw=10ms 1 Tc=25 ° ...
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