5W以下LED驱动电源全套资料(电路图PCB图BOM变压器及测试报告)

陕西亚成微电子有限责任公司陕西亚成微电子有限责任公司陕西亚成微电子有限责任公司陕西亚成微电子有限责任公司 技术支持部技术支持部 2010.102010.10 2010/11/11www.reactor-micro.com OUTLINE: 1、 Basic circuit for LED driver1、 Basic circuit for LED driver 2、RM3253 Description 3、5W-LED Application Circuit 2010/11/11www.reactor-micro.com 1、 basic circuit LED driver1、 basic circuit LED driver •• Integral Type ：：Integrated power supply and constant current circuit, simple structure, low cost, suitable for low power li ti th f ll i 40Wapplications the following 40W ••Split Type：：Independent power supply and constant current circuit, with flexibility, increased flexibility, high power lighting applications for more than 40W 2010/11/11www.reactor-micro.com SPEC. AC Input 90V ～ 264V 90V ～ 264V 90V ～ 264V Power range ＜15W 10W ～ 40W ＞40W PF required No Yes PF＞0 94 Yes PF ＞ 0 94PF required No Yes, PF＞0.94 Yes, PF ＞ 0.94 Current Accuracy ±5% for DC level ±5% for DC level ±5% for DC level Full load efficiency ～80% ＞85% ＞87% Residential ， interior decoration Table Lamp / residential lighting / Landscape ， stage lighting / Applications / lights, etc g g garden lighting g g g lights / outdoor decorative lights, etc RM Referral Program RM3253 2010/11/11www.reactor-micro.com 2、RM3253 Description The RM3253 switch Intergard Circuit cost effectively replace all power supplies,and up to 5W output power based on unregulated isolated linear transformer (50/60HZ). Unlike conventional PWM (pulse width modulation) controllers, they regulate the output voltage in a new method of off-time modulation control. The controller consists of a VCO (voltage control oscillator), Sense and logic circuit, VDD pin, under-voltage lockout circuit, protection for over-voltage, current limited circuit, leading edge blanking over load protection and fault condition auto-restart They are leading edge blanking, over load protection and fault condition auto-restart. They are ideal low power AC/DC adapter/charger solution for portable devices, otherwise,its Built-in 800V high voltage BJT and minimal external componets. 2010/11/11www.reactor-micro.com Package Function Description PIN 1: VDD Power Supply PIN 2: NC Not ConnectedPIN 2: NC Not Connected PIN 3: Sense Current sensor,it senses the voltage via a sensed resistor PIN 4: OE Emmiter PinofthepowerBJTswitch. PIN 5、6: OC OutputPin(Connecttoswitching transformer) PIN 7、8: GND Ground 2010/11/11www.reactor-micro.com Item Conditions MIN. TYP. MAX. Unit Supply Voltage Operation Voltage 21 V Turn-on Threshold Voltage VDD ON 11 12 13 V Turn-off Threshold Voltage VDD OFF 5.5 6 6.5 V Over-voltage Thershold Vovp 28 30 V Oscillator Operation Frequency 45 50 55 KHZ Current Sensing Leading Edge Blanking 250 300 350 nS Current Sense Detection VDD=15V 0.45 0.5 0.55 V Voltage 2010/11/11www.reactor-micro.com 1 24 D1 C3L AC--IN 1 6+ T1 R8 D4 L1 1W LED 3 +EC2+EC1 R3 R9 F1 N C1 2 5+ D2 R1 R2 R4 C4 LED 1W LED 5x 1W 1 8 2 7U1 3 4 + D3 2 7 3 6 4 5 U1 RM325 3 C2 R5 R6 R7 2010/11/11www.reactor-micro.com Describle P/N NO Package Supplier C1 1nF_X5R_1KV_0805 1 DIP C2 1uF_X5R_50v_0805 1 SMD C3 1nF_X5R_100V_0805 1 DIP C4 10uF_X5R_25V_1206 1 SMD D1 Z647 1 SMD D2 FR107 1 DIP DIODE D3 FR104 1 DIP DIODE D4 HER204 1 DIP DIODE EC1,EC2 4.7uF_X5R_400V 2 DIP F1 250V_0.5A 1 DIP L1 1mH 1 SMD R1,R2 1M8_5%_0805 2 SMD R3 270K 5% 0805 1 SMDR3 270K_5%_0805 1 SMD R4 10M_5%_0805 1 SMD R5 1K5_5%_0805 1 SMD R6 3R_1%_0805 1 SMD R7 3R_1%_0805 1 SMD R8 15R 5% 0805 1 SMDR8 15R_5%_0805 1 SMD R9 100K_5%_0805 1 SMD T1 Transformer 1 DIP TDK U1 RM3252 1 SMD 2010/11/11www.reactor-micro.com di iTest Report-Test Condition ffi iEfficiency Test ：： Input voltage 3X1LED 4X1LED 5X1LED EPS2.0 Level 5. 115Vac/60HZ 79.99% 82.40% 84.47% >76.61% 230Vac/50HZ 78.44% 81.25% 83.79% Output Current Accuracy Test ： Condition VIN=100Vac VIN=115Vac VIN=220Vac VIN=265Vac 3W-LED 0.330 0.330 0.330 0.325 4W-LED 0.330 0.330 0.330 0.330 5W-LED 0.330 0.330 0.330 0.330 2010/11/11www.reactor-micro.com 1 三层绝缘胶纸 3 10 PIN3 t PIN1 60T 0 21 密绕 三层绝缘胶纸 PIN4 to PIN5 21T 0.21mm 三层绝缘胶纸 2 4 6 PIN 10 to PIN 6 0.4mm 18T 三层绝缘胶纸 PIN3 to PIN1 60T 0.21mm 密绕 5 PIN 2 to PIN 3 60T 0.21mm 密绕 三层绝缘胶纸 小于等于Lm小于等于2.3mH，Core:TDK PC40EE13 2010/11/11www.reactor-micro.com 2010/11/11www.reactor-micro.com 2010/11/11www.reactor-micro.com