BP5720-5

Data Sheet 100-220VAC Input/5VDC (500mA) Output Isolated AC/DC Converter BP5720-5 Absolute Maximum Ratings 20.5MAX. Dimensions (Unit : mm) Unit V V Conditions 35.5MAX. 10.0MAX. 1-pin input current Maximum power Withstanding voltage Allowable maximum surface temperature Operating temperature range Storage temperature range ID Po VI Tcmax Topr Tstg 250 2.5 2.5 105 −25 to +80 −25 to +105 mA W kVrms °C °C °C MARKING SIDE Refer to the derating curve 1 sec (primary - secondary : 1 - 6Pin, 9 - 12Pin short) Ambient temperature + The module self-heating Tcmax 4.0±1.0 12 456 P=2.54±0.2 2.54X11=27.94 TYP. 3.3MAX. 9 10 11 12 0.5±0.1 1.3±0.2 4.4MAX. MARKING SIDE Parameter 1-pin input voltage 4-pin input voltage Symbol VD VNd Limits 500 +30 / −5 0.25±0.05 5.6MAX. Derating Curve Output Current (mA) 600 500 400 300 200 100 0 -30-20-10 0 10 20 30 40 50 60 70 80 90 Ambient Temperature Ta(°C) Operation Range Electrical Characteristics Parameter Input voltage Output voltage Output current Line regulation Load regulation Output ripple voltage Power conversion efficiency Symbol Vi Vo Io ∆Vr ∆VI ∆γ η Min. 113 4.75 0 − − − 70 (Unless otherwise noted, Vi=141V, Io=500mA,Ta=25°C) (Vo=5V, R3/R4=open) Typ. 141 5.0 − 10 15 100 78 Max. 374 5.25 500 100 100 250 − Unit V V mA mV mV mVp-p % Conditions Io=500mA Vi=113V to 374V Io=0mA to 500mA Vi=141V ∗1 Conversion Efficiency Conversion Efficiency η (%) 100 80 60 40 20 0 0 50 100 150 100 250 300 350 400 450 500 (Vi=311V, Ta=25°C) ∗1: Measured peak-to-peak, ripple current bandwidth (spike noise not included). Application Circuit External Component Layout F1 AC100V to 200V 50Hz/60Hz Pin No. Name Function Connect the negative side of the primary coil of the external transformer. D3 Vo L31 D2 C2 C3 C5 F2 Use a fuse for safety R4 R3 R2 C7 + R1 C4 D1 GND1 + C6 GND2 1 2 3 4 5 6 7 8 9 10 11 NpNC Output Current Io(mA) ZNR31 C1 1 4 6 9 10 11 12 BP5720-5 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 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. Load Regulation (Vi=311V, Ta=25°C) Output Voltage Vo(V) 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 Maximum Io=500mA 0 100 200 300 400 500 600 700 800 Output Current Io(mA) Adjust the output voltage by varying R3 and R4. (1)Output voltage range: 4.0 to 6.0V (2)Output voltage equations Vo5V, R3=open R4=37.6092/ (Vo-5)kΩ External Component Specifications C1: Output smoothing capacitor C2: Noise reduction capacitor C3: Output smoothing capacitor C4: C5: C6: C7: Input smoothing capacitor Noise reduction capacitor Output smoothing capacitor Noise reduction capacitor 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 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 R1: R2: Resistor Noise reduction resistor D1: Noise reduction diode D2: Diode bridge D3: Rectifier diode Operation Notes 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 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) www.rohm.com ©2010 ROHM Co., Ltd. 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