Data Sheet 100-220VAC Input/5VDC (500mA) Output Isolated AC/DC Converter BP5720-5 Absolute Maximum Ratings Dimensions (Unit : mm) Unit V V 1-pin input current Maximum power ID Po 250 2.5 mA W Withstanding voltage VI 2.5 kVrms Allowable maximum surface temperature Operating temperature range Storage temperature range Tcmax 105 °C Topr −25 to +80 °C Tstg −25 to +105 °C Refer to the derating curve 1 sec (primary - secondary : 1 - 6Pin, 9 - 12Pin short) Ambient temperature + The module self-heating Tcmax (Unless otherwise noted, Vi=141V, Io=500mA,Ta=25°C) (Vo=5V, R3/R4=open) Min. 113 Typ. 141 Max. 374 Unit V Vo 4.75 5.0 5.25 V Output current Io 0 − 500 mA Line regulation Load regulation ∆Vr ∆VI − − 10 15 100 100 mV mV Output ripple voltage ∆γ − 100 250 mVp-p η 70 78 − % Power conversion efficiency 1 2 3.3MAX. Conditions Io=500mA ∗1 Vi=141V External Component Layout F1 1 D3 C1 D2 + Vo R2 R1 C2 C7 C4 D1 C6 2 3 4 GND2 GND1 + ZNR31 C3 5 6 7 8 C5 F2 R4 R3 Use a fuse for safety 1 4 6 9 10 11 12 BP5720-5 9 10 11 Please verify operation and characteristics in the customer's circuit before actual usage. Ensure that the load current does not exceed the maximum rating. 12 Np- Function Connect the negative side of the primary coil of the external transformer. C4: C5: C6: C7: Input smoothing capacitor Noise reduction capacitor Output smoothing capacitor Noise reduction capacitor D1: Noise reduction diode D2: Diode bridge D3: Rectifier diode 0.1µF/275VAC Safety regulation 0.1µF/275VAC Safety regulation 22µF/450V Limits ripple current 100mArms or higher 2200pF/400V or higher 2200pF Safety regulation 470µF/10V Low impedance part 630V or higher 0.1 to 0.22µF Use if necessary 800V/0.5A 800V/1A 60V/2A 5.6MAX. R1: R2: Resistor Noise reduction resistor NC pin Skip This is connected to the plus Nd+ side of the base coil wire of the external transformer. NC NC pin Vi(-) This is the primary side input minus terminal. Skip Skip GND1 End of secondary output smoothing capacitor terminal. GND2 Secondary 5V output GND terminal. Secondary output voltage VADJ fine-tunning terminal. Resistor has to be inserted between GND2 or Vo terminals. This is the secondary side 5V Vo output voltage control terminal. Insert the output smoothing capacitor 470 µF between GND. 100kΩ±5% 2W 300V or higher 1W or higher 10 to 22Ω Use if necessary R3,4: Output voltage adjustment resistor By changing R3, R4, it is possible to adjust output voltage. Refer to the output voltage adjustment notes at right L31: Line filter 10mH 0.2Arms or higher Safety regulation T1: Switching transformer Ensure that it complies with safety regulations F1: Fuse Be sure to use this for safety. F2: Fuse Be sure to use this for safety. ZNR31: Varistor A varistor is required to protect against lightning surges and static electricity. 390V Safety regulation Operation Notes 500 400 Operation Range 300 200 100 0 -30-20-10 0 10 20 30 40 50 60 70 80 90 Ambient Temperature Ta(°C) <In case of 5V output> (Vi=311V, Ta=25°C) 100 80 60 40 20 0 0 50 100 150 100 250 300 350 400 450 500 Output Current Io(mA) NC External Component Specifications C1: Output smoothing capacitor C2: Noise reduction capacitor C3: Output smoothing capacitor 0.25±0.05 600 Load Regulation <In case of 5V output> (Vi=311V, Ta=25°C) Output Voltage Vo(V) Application Circuit Pin No. Name L31 9 10 11 12 0.5±0.1 1.3±0.2 4.4MAX. Conversion Efficiency Vi=113V to 374V Io=0mA to 500mA ∗1: Measured peak-to-peak, ripple current bandwidth (spike noise not included). AC100V to 200V 50Hz/60Hz 4 5 6 P=2.54±0.2 2.54X11=27.94 TYP. Derating Curve Symbol Vi Output voltage MARKING SIDE Conversion Efficiency η (%) Parameter Input voltage 10.0MAX. 35.5MAX. Output Current (mA) Electrical Characteristics Conditions MARKING SIDE Limits 500 +30 / −5 20.5MAX. Symbol VD VNd 4.0±1.0 Parameter 1-pin input voltage 4-pin input voltage 7.0 6.0 5.0 4.0 3.0 2.0 Maximum Io=500mA 1.0 0.0 0 100 200 300 400 500 600 700 800 Output Current Io(mA) <<Output voltage adjustment>> Adjust the output voltage by varying R3 and R4. (1)Output voltage range: 4.0 to 6.0V (2)Output voltage equations Vo<5V, R3=(30.33Vo−37.2) / (5−Vo)kΩ R4=open Vo=5V, R3, R4=open Vo>5V, R3=open R4=37.6092/ (Vo-5)kΩ Example) In case of Vo=5.3V Vo>5V , R4=37.6092 / (5.3-5 )kΩ =125.364kΩ Thus, R3=open R4=120kΩ (Vo=5.313V) An excessively large capacitance at C4 may cause the output to become inactive. Therefore, a capacitance between 470µF to 2200µF is recommended, with a risetime of 10ms or less. DC coltage after sousing Overcurrent (reset type) protection circuit is built in, preventing damage from occurring due to unexpected conditions www.rohm.com ©2010 ROHM Co., Ltd. All rights reserved. 1/1 2010.01 - Rev.A Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. 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 and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. R1010A