ICE2QR4780G Quasi-Resonant, 800V CoolSET in DS0-12 Package Product Highlights Active Burst Mode to reach the lowest standby power requirement <100 mW no load Quasi resonant operation PG-DSO-12 Digital frequency reduction for better overall system efficiency 800 V avalanche rugged CoolMOS with startup cell Pb-free lead plating, halogen free mold compound, RoHS compliant Features Applications Adapter/Charger, Blue Ray/DVD player, Set-top Box, Digital 800 V avalanche rugged CoolMOS with built-in startup cell Photo Frame Quasiresonant operation till very low load Auxiliary power supply of Server, PC, Printer, TV, Home Active burst mode operation for low standby input power (< 100 theater/Audio System, White Goods, etc mW) Description Digital frequency reduction with decreasing load for reduced The CoolSET-Q1 series (ICE2QRxx80Z) is the first generation of switching loss quasi-resonant integarted power ICs. It is optimized for off-line Built-in digital soft-start switch mode power supply applications such as LCD monitor, DVD R/W, DVD Combo, Blue-ray DVD, set top box, etc. Operting the Foldback point correction and cycle-by-cycle peak current MOSFET switch in quasi-resonant mode, lower EMI, higher limitation efficiency and lower voltage stress on secondary diodes are Maximum on/off time limitation expected for the SMPS. Based on the BiCMOS technology, the Auto restart mode for VCC Overvoltage and Undervoltage CoolSET-Q1 series has a wide operation range (up to 25 V) of IC protections power supply and lower power consumption. It also offers many Auto restart mode for overload protection advantages such as: a quasi-resonant operation till very low load increasing the average system efficiency compared to other Auto restart mode for overtemperature protection conventional solutions the Active Burst Mode operation enables Latch-off mode for adjustable output overvoltage protection ultra-low power consumption at standby mode with small and and transformer short-winding protection controllable output voltage ripple. W p D Lf O Snubber C V C f O bus W s C R R ZC ZC2 ZC1 85 ~ 265 VAC C O W a R VCC D VCC Dr1~Dr4 C VCC ZC VCC Drain CPS Startup Cell Power Management R b1 PWM controller CS Current Mode Control R R b2 ovs1 Cycle-by-Cycle TM R CS GND CoolMOS current limitation Zero Crossing Block Optocoupler R c1 Active Burst Mode FB Protections C C c1 c2 TL431 TM R Control Unit CoolSET -Q1 ovs2 Figure 1 Typical application 1 2 2 VDS Package Marking R 230V 15% 85-265 V Type DSon AC AC ICE2QR4780G PG-DSO-12 2QR4780G 800 V 4.7 37 W 22 W 1 typ at T=25C 2 2 Calculated maximum input power rating at Ta=50C, Ti=125C and with 232mm , 2 oz copper area on Drain pin as heat sink.. Data Sheet Please read the Important Notice and Warnings at the end of this document Revision 1.1 www.infineon.com 2017-06-13 Quasi-Resonant, 800V CoolSET in DS0-12 Package Pin Configuration and Functionality Table of Contents 1 Pin Configuration and Functionality ................................................................................ 3 2 Representative Block Diagram ........................................................................................ 4 3 Functional Description ................................................................................................... 5 3.1 Introduction ............................................................................................................................................. 5 3.2 Soft-start .................................................................................................................................................. 5 3.3 Normal Operation ................................................................................................................................... 6 3.3.1 Digital Frequency Reduction ............................................................................................................. 6 3.3.1.1 Up/down counter .......................................................................................................................... 6 3.3.1.2 Zero crossing (ZC counter) ........................................................................................................... 7 3.3.1.3 Ringing suppression time ............................................................................................................. 8 3.3.1.4 Switch on determination .............................................................................................................. 8 3.3.1.5 Switch off determination .............................................................................................................. 8 3.4 Current Limitation ................................................................................................................................... 9 3.4.1 Foldback Point Correction ................................................................................................................. 9 3.5 Active Burst Mode .................................................................................................................................. 10 3.5.1 Entering Active Burst Mode Operation ............................................................................................ 10 3.5.2 During Active Burst Mode Operation ............................................................................................... 10 3.5.3 Leaving Active Burst Mode Operation ............................................................................................. 11 3.6 Protection Functions ............................................................................................................................. 12 4 Electrical Characteristics ............................................................................................... 13 4.1 Absolute Maximum Ratings .................................................................................................................. 13 4.2 Operating Range .................................................................................................................................... 14 4.3 Characteristics ....................................................................................................................................... 14 4.3.1 Supply Section ................................................................................................................................. 14 4.3.2 Internal Voltage Reference .............................................................................................................. 15 4.3.3 PWM Section ..................................................................................................................................... 15 4.3.4 Current Sense ................................................................................................................................... 15 4.3.5 Soft Start ........................................................................................................................................... 15 4.3.6 Foldback Point Correction ............................................................................................................... 16 4.3.7 Digital Zero Crossing ........................................................................................................................ 16 4.3.8 Active Burst Mode ............................................................................................................................ 17 4.3.9 Protection ......................................................................................................................................... 17 4.3.10 CoolMOS Section ........................................................................................................................... 18 5 CoolMOS Performance Characteristics .......................................................................... 19 6 Input Power Curve ........................................................................................................ 21 7 Outline Dimension ........................................................................................................ 22 8 Marking ....................................................................................................................... 23 Revision History ........................................................................................................... 23 Data Sheet 2 Revision 1.1 2017-06-13