Data Sheet Data Sheet 100-200VAC Input/12W Output 5V/150mA Output Isolated AC/DC Converter Step-down DC/DC Converter BP5728 BP5223 Absolute Maximum Ratings Dimensions (Unit : mm) Absolute Maximum Ratings Dimensions (Unit : mm) 18.8MAX. 9.9MAX. 17.0Max. Parameter Symbol Limits Unit 10.4Max. Parameter Symbol Limits Unit 6pin Input Voltage VD 800 V Input voltage Vi 18 V 2pin Input Voltage VFB 0.2 to +6 V Operating temperature range Topr 25 to +80 C 3pin Input Voltage VDD 24 V MARKING SIDE 3pin Input Current 8 IDD mA Storage temperature range Tstg 25 to +85 C Allowable Loss PD 0.64 W Maximum surface temperature Tsmax 100 C 1 3 4 5 Max Surface Temperature Tcmax 105 C Maximum output current Iopeak 150 mA 3.25Max. 0.50.1 0.250.05 0.250.05 25 to +80 1.30.2 Operating Temperature Range Topr C 1 2 3 6 5.25Max. 0.50.1 5.55MAX. P=2.540.2 4.35MAX. 5.15Max. 1.30.2 Storage Temperature Range Tstg 25 to +105 C 2.54x4=10.16 3.25MAX. 2.540.2 2.54X5=12.7TYP. Electrical Characteristics Derating Curve Electrical Characteristics (VDD=15V, Vd=15V,IFB=0.1mA,SW1=R1,Ta=25C, unless otherwise specified) Derating Curve Derating Curve Parameter Symbol Min. Typ. Max. Conditions Unit 160 Parameter Symbol Min. Typ. Max. Unit Conditions Derating curve 140 VDD 8.9 12 20 Input voltage V 0.8 Input voltage range V DC Vi 8.0 14.0 18.0 120 0.7 fo 59 65 71 Output frequency kHz IFB=0.5mA 100 0.6 Output voltage V Vi=14V, Io=100mA Tsmax=105Tsmax=105CC Vo 4.7 5.0 5.3 80 Operation Range Turn on voltage VDD on 15.5 16.5 17.5 V VDD=017.5V 0.5 60 Output current mA Vi=14V 1 Io 150 0.4 40 Turn off voltage VDD off 7.7 8.3 8.9 V VDD=17.50V 0.3 20 Line regulation V Vi=8 to 18V, Io=100mA VL 0.03 0.10 OperOperation ration rangeange Maximum Duty Duty MAX 68 75 82 % IFB=0.5mA 0.2 0 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 0.1 Load regulation V Vi=14V, Io=0 to 100mA VR 0.05 0.15 Zero-Duty IFB Ioz 0.85 1.15 1.45 IFB=01.55mA Ambient Temperature Ta( C) mA 0 -30 -10 10 30 50 70 90 Output ripple voltage Vpp Vi=14V, Io=100mA 2 Vp 0.06 0.15 Parameter Symbol VDD Min. Typ. Max. Unit Conditions Ambient Templature Ta / C Power conversion efficiency % Vi=14V, Io=150mA 75 80 Over drain current 10V 217 247 281 VD=015V Oscillation Frequency 1 Maximum output current varies depending on ambient temperature please refer to derating curve. protection 15V 269 302 338 mA SW1=R2 Idocp Conversion Efficiency 2 The output ripple voltage may vary depending on the capacitance, environment, and location of peripheral components. Especially right Oscillataion Frequency Characteristics 20V 314 349 388 attention has to be paid to aluminum electrolytic capacitor, because ESR changes greatly at the time of the low temperature and output ripple (In case of 12V output) 200 voltages increase. 180 Conversion efficiency 160 Application Circuit (In case of 12V output) (Vi=311V, Ta=25 C) 140 90 120 80 Application Circuit 100 70 Be sure to use fuse for safety. F1 80 12V/0.5A(100V ) 60 Pin No. Function DB 60 FL1 12V/1A(200V) 50 1 Input terminal Vi R1 D4 T1 BP5223 40 40 Vo 2 Not used ZNR1 20 C1 C2 30 3 GND 0 C4 20 R2 0 30 60 90 120 150 C3 R3 10 4 GND NP NS C7 AC80 to 154V(100V) Output Current Io(mA) 0 5 Output terminal Vo D2 AC154V to 286V(200V) 0 200 400 600 800 1000 6 GND Output current / mA F2 1 3 4 5 D3 Conversion Efficiency 3 2 Conversion Efficiency Pin 1 Load regulation R6 Terminal name Terminal function No. (Ta=25 C, Vi=12.0V) R4 C5 ND LIn Io IC1 90 (In case of 12V output) 1 COM Common terminal at primary side 80 Vi + Output charasteristic C13 R7 70 2 FB Feed back terminal (Vi=311V, Ta=25 C) C1 Vo C2 60 R5 14 C3 50 C12 R9 3 VDD Power supply terminal for internal drive 40 12 IC2 10 6 VD Drain terminal for built-in FET 30 PC1 8 20 Be sure to use fuse for safety. R8 6 10 4 0 Please verify operation and characteristics in the customer s circuit before actual usage. 0 30 60 90 120 150 2 Operating Principle 0 Output Current Io(mA) Ensure that the load current does not exceed the maximum rating. 1.When turned on : C5 is charged by R2 when the power is on, and the switching starts 0 500 1000 1500 2000 Output current / mA when the voltage at V DD pin reaches the voltage threshold (17.5V max.) Vdd is supplied via Nd and FB current flows to PC1 once Vo exceeds the threshold voltage. Once PC1 Load Regulation 2.During operation : External Component Specifications turns ON a current Ioz flows through the transistor. Load Regulation FUSE: fuse Use a fast-acting fuse of 0.5A (Ta=25C, Vi=12V) Also, FB current runs to Pin 2 of BP5728 when Vo exceeds the designed voltage and the constant voltage control is executed. 6 The input current will increase if the output power increases, and the overcurrent protection circuit will turn 3.In overcurrent conditions : C1: Input capacitor Rated voltage : Beyond 50V 5 ON once the Drain current exceeds the specified value (Idocp). Capacitance : 33 to 220F, low impedance type 4 Rated ripple current : Beyond 0.1Arms 3 2 External Component Specifications C2: Output capacitor Rated voltage : Beyond 25V 1 C1,C2 : IC2 : Shunt regulator Vref=2.495V Noise reduction capacitors Rated at 300VAC or higher Capacitance : 100 to 470F, low impedance type C3 : FL1 : Noise reduction filter Use if necessary 0 Input smoothing capacitor 0.1 to 0.22F 0 50 100 150 200 250 ESR : Less than 0.39 C4 : R1 : Resistor 0 Noise reduction capacitor 22F / 450V Output Current Io(mA) Rated ripple current : Beyond 0.37Arms C5 : R2 : Resistor 750k 0.5W / 600V Vdd smoothing capacitor 2200pF / 1kV Evaluate under actual operating conditions since it affects the C7 : R3 : Resistor 200k / 3W Output capacitor 10 F / 50V Surface Temperature Increase output ripple voltage. C12 : R4 : Resistor 51 / 0.125W Phase compensation capacitor 470 F / 35V low impedance Surface Temperature Increase C13 : R5 : Resistor 1k / 0.1W Noise reduction capacitor 0.1 F / 50V (Ta=25C, Vi=12V) 20 D2 : R6 : Resistor 15k / 0.1W C3: Noise removal capacitor Rated voltage : Beyond 25V Rectifier diode 2200pF / AC250V 18 D3 : R7 : Resistor 3k / 0.1W Capacitance :0.1 to 0.22F Rectifier diode FRD 800V / 0.5A 16 14 D4 : R8 : Resistor 4.7k / 0.1W Film or ceramic capacitor Rectifier diode 80V / 0.1A 12 DB : R9 : Resistor 1k / 0.1W Diode bridge SBD 90V / 3A 10 8 F1.F2 : PC1 : Photo coupler PC817 Fuse 800V / 1A 6 IC1 : T1 : Switching transformer SRW25ES-47V015(TDK) BP5728 Use for safety 4 2 ZNR1 : Varistor A varistor is required to protect against BP5728 0 0 30 60 90 120 150 lightning surges and static electricity. Output Current Io(mA) www.rohm.com 2010.01 - Rev.A 2010 ROHM Co., Ltd. All rights reserved. 1/1 BP5728 + + + 4.01.0 19.5MAX. Conversion efficiency / % Output voltage / V Allowable loss / W MARKING SIDE Output Current Io(mA) Temperature Rising T( C) Output Voltage Vo(V) Conversion Efficiency (%) Oscillation Frequency (kHz) 4.01.0 16.8Max. Mark Side