深圳市钲铭科电子有限公司 SM2087 High Power Factor Linear Constant Current LED Driver v1.6 GOSTON ELECTRONICS CO.,LTD SM2087 Features General Description SM2087 is a high power factor linear constant current LED driver which is No transformer and high voltage applied to LED lighting. Through the distinctive constant current control electrolysis capacitor technology, it realizes that constant current accuracy is less than ±5% and Integrated high voltage startup power output current is adjustable through external resistor. High power factor and supply circuit low harmonic distortion are the particular features. Adjustable output current, max 60mA Inter-chip current deviation < ±5% Efficiency：>90% Power factor ：>0.95 THD<20% Over temperature protection Application system no EMI problems Package：ESOP8 The system is simple without transformer and electrolysis capacitor. Therefore, LED lighting batch job can be realized. Pin Figure Typical Schematic Circuit Diagram …… …… …… …… …… …… … …… … …… VIN Applications LED constant current driver T5/T8 tube lamp LED bulb lamp Vac 5 REXT OUT1 LED ceiling lamp 4 6 NC OUT2 3 7 NC OUT3 2 8 GND OUT4 1 SM2087 Diagram 1.SM2087 Typical Schematic Circuit Diagram Mail : [email protected] Tel: 0755 -27593075 Address: 3F,SSMEC Bldg.,15 South 1st Blvd.,South Area,Shenzhen High tech Industrial Park,Nanshan Dist.,Shenzhen. Note: The latest datasheet is subject to the web(www.dianyuanic.com). -1- Fax: 0755 -29031113 深圳市钲铭科电子有限公司 SM2087 High Power Factor Linear Constant Current LED Driver v1.6 GOSTON ELECTRONICS CO.,LTD Pin Schematic Diagram O U T4 1 8 GND O U T3 2 7 NC O U T2 3 6 NC O U T1 4 5 REX T ESO P8 Pin Description Pin Pin Function OUT1 Power input and constant current output port1 OUT2 current output port 2 OUT3 current output port 3 OUT4 current output port 4 REXT Output current setting port GND GND Limiting Values Ambient temperature is 27°C if there is no special instruction. Characteristic parameters Symbol Range Operating temperature TOPT -20°C ~ +125°C Storage temperature TSTG -50°C ~ +150°C ESD voltage withstand VESD >2000V Electrical Operating Parameters Ambient temperature is 27°C if there is no special instruction. Parameters OUT1 input voltage Output current REXT port voltage OUT1/ OUT2 port withstand voltage OUT3/ OUT4 port withstand voltage IOUT accuracy Over-temperature Protection point(1)* Symbol Conditions Min Typ Max Unit VOUT1 ----- 6.5 V IOUT ----- 60 mA VREXT VOUT1 = VOUT4= 10V VDS_BV1 IOUT1 = IOUT2=0 400 V VDS_BV2-4 IOUT3= IOUT4=0 250 V dIOUT IOUT = 10mA ~ 50mA TSC - 10 0.9 V ±5 - % 110 - ℃ Note(1)*:When the junction temperature is over 110 ℃, the output current of SM2082B will be reduced Functional Description SM2087 is constant current drive which integrates the functional module such as LED constant current control and OUT port high voltage drive. OUT1 port minimum input voltage is 6V（IOUT = 20mA）and it can reach output current 10mA~60mA by external REXT resistor. Built-in LED constant current drive maintains LED current a high precision without impact of ambient temperature. Mail : [email protected] Tel: 0755 -27593075 Address: 3F,SSMEC Bldg.,15 South 1st Blvd.,South Area,Shenzhen High tech Industrial Park,Nanshan Dist.,Shenzhen. Note: The latest datasheet is subject to the web(www.dianyuanic.com). -2- Fax: 0755 -29031113 深圳市钲铭科电子有限公司 GOSTON ELECTRONICS CO.,LTD SM2087 High Power Factor Linear Constant Current LED Driver v1.6 The chip can achieve high efficiency and high power factor by opening four switches one by one. The chip output current is adjustable by REXT resistor IOUT=VREXT/R. Output current generated by four switches opening one by one is shown below: IOUT1=0.55V/R IOUT2=0.70V/R IOUT3=0.85V/R IOUT4=0.90V/R Mail : [email protected] Tel: 0755 -27593075 Address: 3F,SSMEC Bldg.,15 South 1st Blvd.,South Area,Shenzhen High tech Industrial Park,Nanshan Dist.,Shenzhen. Note: The latest datasheet is subject to the web(www.dianyuanic.com). -3- Fax: 0755 -29031113 深圳市钲铭科电子有限公司 SM2087 High Power Factor Linear Constant Current LED Driver v1.6 GOSTON ELECTRONICS CO.,LTD Typical Application Circuit SM2087 Typical Application Circuit 38*2 24*2 11*2 10*2 …… …… …… …… …… …… … …… … …… VIN Vac 5 REXT OUT1 30R 4 6 NC OUT2 3 7 NC OUT3 2 8 GND OUT4 1 SM2087 Diagram 2. SM2087 Typical Application Circuit SM2087 Parallel Application Circuit LED1 Vin LEDn Group1 LED(n+1) LEDm LED(m+1) LEDp Group3 Group2 LED(p+1) LEDq Group4 OUT3 2 OUT4 1 7 NC 8 GND SM2087 OUT2 3 DB1 MB6S 6 NC 90Vac~265Vac 5 REXT OUT1 4 F1 1A/250V R1 OUT4 1 8 GND LED(p+1) LEDq Group4 SM2087 OUT3 2 7 NC 5 REXT OUT1 4 LED(n+1) LEDm LED(m+1) LEDp Group3 Group2 OUT2 3 LEDn Group1 6 NC LED1 R2 Diagram 3. SM2087 Parallel Application Circuit Mail : [email protected] Tel: 0755 -27593075 Address: 3F,SSMEC Bldg.,15 South 1st Blvd.,South Area,Shenzhen High tech Industrial Park,Nanshan Dist.,Shenzhen. Note: The latest datasheet is subject to the web(www.dianyuanic.com). -4- Fax: 0755 -29031113 深圳市钲铭科电子有限公司 SM2087 High Power Factor Linear Constant Current LED Driver v1.6 GOSTON ELECTRONICS CO.,LTD Package ESOP8 MILLIMETERS MIN MAX MIN INCHES MAX A 1.350 1.750 0.053 0.069 A1 0.050 0.150 0.004 0.010 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.006 0.010 D 4.700 5.100 0.185 0.200 D1 3.202 3.402 0.126 0.134 E 3.800 4.000 0.150 0.157 E1 5.800 6.200 0.228 0.244 E2 2.313 2.513 0.091 0.099 e 1.270(BSC) 0.050(BSC) L 0.400 1.270 0.016 0.050 Θ 0° 8° 0° 8° Mail : [email protected] Tel: 0755 -27593075 Address: 3F,SSMEC Bldg.,15 South 1st Blvd.,South Area,Shenzhen High tech Industrial Park,Nanshan Dist.,Shenzhen. Note: The latest datasheet is subject to the web(www.dianyuanic.com). -5- Fax: 0755 -29031113