EM8609/A Transition Mode PFC Controller for LED Lighting General Description EM8609/A is a voltage mode PFC controller operating at transition mode. This device provides protections of internal soft start, over voltage protection, over current protection and thermal shutdown. It can minimize the external components counts, and makes the design easy. It also provides functions of low start up current, disable function, under voltage lockout and internal leading edge blanking of the current sensing. This part is available in SOP-8 package. Package EM8609G SOP-8 EM8609AG SOP-8 Leading Edge Blanking on CS Pin Over Voltage Protection Cycle by Cycle Current Limiting Feedback Open Protection CS Open Protection RT Open/Short Protection 2ms Soft-Start Current Limit Thermal Shutdown Applications Ordering Information Part Number Remark with AC Absent function without AC Absent function Ballast General LED lighting Pin Configuration Features Transition Mode PFC Voltage Mode Control Programmable Max. On-Time Low Start Up Current (<30uA) Typical Application Circuit Fly-back Application 2012/07/19 Rev.A.0 嘉利源科技 网址：www.jlytek.com/ 全先生 电话：15602907416 QQ;997974311 1 EM8609/A Buck Application Pin Assignment Pin Name Pin No. Io_SNS COMP RT CS ZCD GND GATE VCC 2012/07/19 Rev.A.0 1 2 3 4 5 6 7 8 Pin Function Output current feedback control Output of the error amplifier for voltage loop compensation Ramp generator, connecting a resistor to GND pin to set the saw tooth signal Senses the peak current. Detecting zero crossing of input signal Ground. Gate drive output to drive the external MOSFET. IC power supply pin. 2 EM8609/A Function Block Diagram 2012/07/19 Rev.A.0 3 EM8609/A Absolute Maximum Ratings (Note 1) Supply Input Voltage, VCC ------------------------------------------------------------------ 32V Gate pin------------------------------------------------------------------------------------------- 32V other Pins ---------------------------------------------------------------------------------------- - 0.3V to 6V Power Dissipation, PD @ TA = 25C SOP8 ---------------------------------------------------------------------------------------------- 0.909W Package Thermal Resistance SOP-8 (Note 2), --------------------------------------------------------------------------------- 110°C /W Junction Temperature ------------------------------------------------------------------------ 150°C Lead Temperature (Soldering, 10 sec.) --------------------------------------------------- 260°C Storage Temperature Range ---------------------------------------------------------------- -65°C to 150°C ESD Susceptibility (Note3) 2kV MM (Machine Mode) ------------------------------------------------------------------------- 200V Gate Output Current--------------------------------------------------------------------------- 500mA HBM (Human Body Mode) ------------------------------------------------------------------ Recommended Operating Conditions (Note4) Junction Temperature --------------------------------------------------------------------- -40°C to 125°C Ambient Temperature --------------------------------------------------------------------- -40°C to 85°C Supply Input Voltage, VCC -------------------------------------------------------------------- 12V to 16V VCC capacitor ------------------------------------------------------------------------------------ 4.7uF to 10uF Electrical Characteristics VCC=16V, TA=25℃, unless otherwise specified Parameter Symbol Test Conditions Min Typ Max Units VCC Section Start Up Current VCC<UVLO (on) Operating Current (CGATE=1nF) UVLO (OFF) UVLO (ON) VCC OVP Protect voltage Error Amplifier Feedback input voltage, VREF Trans-conductance Output sink current Output source current Output upper clamp voltage Burst mode hysteresis 2012/07/19 Rev.A.0 VOVP VIo_SNS=VREF+0.1V VIo_SNS=VREF-0.1V VIo_SNS=VREF-0.1V 20 uA 2 mA 15 12 16 17 V V 26.5 28 30 V 0.25 115 12 -12 5.4 100 V uS uA uA V mV 4 EM8609/A Io_SNS Section OVP threshold OVP hysteresis CS Section Current sense input threshold voltage Input bias current Leading edge blank time ZCD section Upper Clamp Voltage Lower Clamp Voltage Input voltage threshold Input bias current Max. delay from ZCD to OUT RT Section Max. On-Time voltage Max. On-Time programming Max. On-Time Min. Off-Time Section Min. Off-Time GATE Drive Output Section Output low level Output high clamp level Rising time Falling time Protection Section Start time period Soft Start Time VIN Absent Delay OTP trip level OTP hysteresis 0.35 IZCD < 100 uA IZCD > 450 uA VCS=0V~1V 0.4 0.45 0.175 V 0.5 0.35 V 1 350 IZCD=2mA IZCD=-2mA 6.7 -0.7 1.4 0.7 Hysteresis VZCD=1V~5V, OUT=OFF 1 250 RRT=20k RRT=20k RRT=100k 10 2.9 12 40 14 1.5 VCC=16V, ISINK=20mA VCC=16V VCC=16V, CL=1000pF VCC=16V, CL=1000pF EM8609 V uA ns V V V V uA ns V us us us 12 35 25 0.5 V V ns ns 150 2 20 140 30 us ms ms o C o C Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. 2 Note 2. θJA SOP-8 packages is 52°C /W on JEDEC 51-7 (4 layers,2S2P) thermal test board with 50mm copper area. Note 3. Devices are ESD sensitive. Handling precaution is recommended. Note 4. The device is not guaranteed to function outside its operating conditions. 2012/07/19 Rev.A.0 5 EM8609/A Ordering & Marking Information Device Name: EM8609G for SOP-8 EM 8609 ABCDEFG EM8609: Device Name ABCDEFG: Date Code Device Name: EM8609AG for SOP-8 EM 8609A ABCDEFG EM8609A: Device Name ABCDEFG: Date Code Outline Drawing J F D E I I G B K H C A Dimension in mm Dimension Min. Typ. Max. 2012/07/19 Rev.A.0 A 4.70 B 3.70 C 5.80 D 0.33 5.10 4.10 6.20 0.51 E F 1.20 G 0.08 H 0.40 I 0.19 J 0.25 K 0∘ 1.62 0.28 0.83 0.26 0.50 8∘ 1.27 6