Data Sheet 100-230VAC Input/24W Output Isolated AC/DC Converter BP5729 Absolute Maximum Ratings Withstanding voltage Allowable maximum surface temperature Operating temperature range Storage temperature range −25 to +80 −30 to +105 °C °C 3.25MAX. DC248 to DC372V DC120 to DC372V 1s (primary - secondary) Ambient temperature + The module self-heating Tcmax Electrical Characteristics <In case of 12V output> (Unless otherwise noted, Vi=311V, rated load Ta=25°C) Parameter Output voltage Output current Symbol Vo Io Min. 11.4 0 Typ. 12.0 − Max. 12.6 2000 Unit V mA Vr VI Vp η − − − 82 13 20 0.16 90 200 200 0.5 − mV mV Vp-p % Line regulation Load regulation Output ripple voltage Power conversion efficiency Conditions Io=2000mA Refer to derating curve Vi=120 to 372V DC Io=1000mA Io=50 to 2000mA ∗ Io=2000mA ∗ Pulse noise is not included. Sample Application Circuit C8 D3 Be sure to use fuse for safety. F1 ZNR FL1 C1 C2 R2 D4 + C5 R3 D2 C7 R4 C3 1 2 3 6 12 10 8 7 Pin No. 1 6 3 2 Function PC This is the secondary side opto-coupler current control terminal. Vo This is the secondary side output voltage control terminal. Insert the output smoothing capacitor between GND. 3 GND This is the GND terminal for the secondary side. 6 ZCD This is the zero current control terminal. 7 8 10 Vcc Vi(-) VH This is the internal circuit power supply terminal. This is the primary side input minus terminal. This is the start teminal. VD This is the built-in FET of drain terminal. The primary coil minus side of the external transformer, and the snubber circuit for noise reduction are connected to this. 12 BP5729 Noise reduction capacitor Rectifier diode Rectifier diode Rectifier diode Diode bridge Resistor Resistor Output voltage setting resistor Resistor Switching transformer Fuse AC line filter Varistor Name 1 2 External Components Specifications C1,C2: Noise reduction capacitors Input smoothing capacitor C3: Vcc smoothing capacitor C4: Noise reduction capacitor C5: Quasi-resonance capacitor C6: Output smoothing capacitor C7: Limiting element voltage AC250V or higher, 0.1 to 0.22µF 33µF / 450V General purpose type 10µF / 50V Low impedance type 2200pF / 630V Use if necessary 1000µF / 35V x 2 Low impedance type Rated ripple current 4.5Arms or higher ESR 18mΩ or below 2200pF / AC250V FRD 200V / 0.5A 800V / 0.5A 60V / 20A 800V / 1A 47kΩ ±1% 0.1W 100kΩ ±5% 3W Limiting element voltage 300V or higher 68kΩ ±1% 0.1W 910Ω ±1% 0.1W Be sure to use this for safety A varistor is required to protect against lightning surges and static electricity. Usage Precautions This product has built-in over current (reset type) and over voltage (latch type) protection functions to prevent destruction due to surges. Discontinue operation if protection circuits are continuously active. www.rohm.com ©2010 ROHM Co., Ltd. All rights reserved. 8 10 0.5±0.1 1.3±0.2 12 0.25±0.05 2.25MAX. 7.05MAX. 2.54X11=27.94TYP. Derating Curve 27 24 21 Vi=248V to 372V 18 15 12 9 Vi=120V to 248V 6 3 0 -30-20-10 0 10 20 30 40 50 60 70 80 90 100 Ambient Current Ta(°C) Switching Freguency <In case of 12V output> (Ta=25°C) 120 100 Burst Switching Vi=311V 80 Vi=141V 60 40 Burst Switching 20 0 200 400 600 800 1000 1200 1400 1600 1800 2000 Output Current Io(mA) + C4 R1 C6 7 P=2.54±0.2 D1 T1 C8: D1: D2: D3: D4: R1: R2: R3: R4: T1: F1: FL1: ZNR: MARKING SIDE 0 + MARKING SIDE Topr Tstg 24.3MAX. °C 4.0±1.0 105 Po 9.3MAX. 37.4MAX. Output Power (W) VI Tcmax Maximum power Dimensions (Unit : mm) Conditions 1/1 Conversion Efficiency Conversion Efficiency η (%) 1-Pin input current Unit V Apk V V V mA mA mA W W kV <In case of 12V output> (Ta=25°C) 100 90 80 Vi=311V Vi=141V 70 60 50 40 30 20 10 0 0 200 400 600 800 1000 1200 1400 1600 1800 2000 Output Current Io (mA) Load Regulation <In case of 12V output> (Ta=25°C) 14.0 Output Voltage Vo(V) 6-Pin input current Limits 720 1 400 30 9.2 −2.0 +3.0 10 24 12 2.5 Switching Frequency fsw (kHz) Symbol VD ID VH VCC Vzcd Isozcd Isizcd Ipc 12.0 10.0 Vi=141V Vi=311V 8.0 6.0 4.0 Maximum Maximum Io=2000mA Io=1000mA (Vi=120 to 248V) (Vi=248 to 372V) 2.0 0.0 0 500 1000 1500 2000 2500 3000 3500 4000 Output Current Io (mA) Surface Temperature Increase Surface Temperature Increase∆ T(°C) Parameter 12-Pin input voltage 12-Pin input current 10-Pin input voltage 7-Pin input voltage 6-Pin input voltage 40 <In case of 12V output> (Ta=25°C) 35 30 25 20 15 Vi=141V Vi=311V 10 5 0 0 200 400 600 800 1000 1200 1400 1600 1800 2000 Output Current Io (mA) 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. 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