Data Sheet 220VAC Input/12VDC (300mA) Output Non-Isolated AC/DC Converter BP5048 Absolute Maximum Ratings Unit 358 300 2 −20 to +80 −25 to +105 V mApk kV °C °C 9.2MAX. 35.0MAX. Mark Side Limits 22.0MAX. Symbol Vi Iomax Vsurge Topr Tstg 1 4±1.0 Parameter Input voltage Maximum output current ESD endurance Operating temperature range Storage temperature range Dimensions (Unit : mm) 3 5 5 . 0 8 0 . 5 ±0 . 1 3.6MAX 7 10 12 7.62 0 . 2 5 ±0 . 0 5 1 . 3 ±0 . 2 4.85MAX. 4.35MAX. 2.54�11=27.94 Electrical Characteristics Conditions DC Vi=311V, Io=100mA Vi=311V ∗1 Vi=249 to 358V, Io=100mA Vi=311V, Io=0 to 100mA Vi=311V, Io=100mA ∗2 Vi=311V, Io=300mA ∗1 Maximum output current varies depending on ambient temperature ; please refer to derating curve. ∗2 Spike noise is not included in output ripple voltage. Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 Please note that the input side is at Pin 12. 12 10 7 5 3 1 FUSE D1 Vi ∼ R1 ZNR + C1 C3 Io L1 1mH + − − C2 Function Output terminal Vo(12V) Skip Choke coil connect Skip Choke coil connect Skip COMMON Skip Skip N.C. Skip Input terminal Vi(311VDC) Vo Use a fuse for safety Please verify operation and characteristics in the customer's circuit before actual usage. Ensure that the load current does not exceed the maximum rating. External Component Specifications FUSE: FUSE C1: Input capacitor Use a fuse of 1A. C2: Output capacitor Rated voltage 25V or higher, 100 to 470µF Low impedance type Impedance is 0.4Ω max at high frequencies. Evaluate under actual operating conditions. Rated voltage 450V or higher 22 to 820µF Permissible ripple current 0.13Arms or higher C3: Noise removal capacitor Rated voltage 450V or higher 0.1 to 0.22µF Film or ceramic capacitor Evaluate under actual operating conditions. L1: Power inductor D1: Rectifier diode R1: Noise removal resistor ZNR: Varistor Derating Curve 350 300 250 200 150 Operation Range 100 50 0 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Ambient Temperature Ta (°C) Conversion Efficiency Application Circuit BP5048 Derating Curve Output Current Io (mA) Unit V V mA V V Vp-p % Inductance = 1.0mH Permissible current value 600mA or higher Recommended part : C13-FR-GA (MITSUMI) or TSL3135S-102JR78 (TDK) A reverse surge voltage 600V or higher An average rectifying current of 0.5A The forward surge current should be 20A or higher. Conversion Efficiency (%) Max. 358 13.0 300 0.20 0.20 0.15 − 100 90 80 70 60 50 40 30 20 10 0 Conversion Efficiency (Ta=25°C, Vi=311V) 0 50 100 150 200 250 Output Current Io (mA) 300 Load Regulation Output Voltage Vo (V) Typ. 311 12.0 − 0.05 0.05 0.07 78 13.0 12.8 12.6 12.4 12.2 12.0 11.8 11.6 11.4 11.2 0 Load Regulation (Ta=25°C, Vi=311V) 50 100 150 200 250 Output Current Io (mA) 300 Surface Temperature Increase Temperature Rising ∆T (°C) Symbol Min. Parameter Input voltage range 249 Vi Output voltage 11.0 Vo Output current 0 Io Line regulation −0.20 Vr Load regulation −0.20 Vl Output ripple voltage − Vp Power conversion efficiency 65 η 40 35 30 25 20 15 10 5 0 Surface Temperature Increase (Ta=25°C, Vi=311V) 0 50 100 150 200 250 Output Current Io (mA) 300 10 to 22Ω 1/4W Determine the ideal value through actual testing. A varistor is required to protect against lightning surges and static electricity. www.rohm.com ©2010 ROHM Co., Ltd. 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