ICE2QR4765G Quasi-Resonant, 650V CoolSET in DS0-12 Package Product Highlights Active Burst Mode to reach the lowest standby power requirement <100 mW no load PG-DSO-12 Quasi resonant operation Digital frequency reduction for better overall system efficiency 650 V avalanche rugged CoolMOS with startup cell Pb-free lead plating, halogen free mold compound, RoHS compliant Auxiliary power supply of Server, PC, Printer, TV, Home Features TM theater/Audio System, White Goods, etc. 650V avalanche rugged CoolMOS with built-in startup cell Quasi resonant operation till very low load Active burst mode operation for low standby input power (< Description 0.1W) TM The CoolSET -Q1 series (ICE2QRxx65G) is the first generation of Digital frequency reduction with decreasing load for reduced quasi-resonant integrated power ICs. It is optimized for off-line switching loss switch mode power supply applications such as LCD monitor, DVD Built-in digital soft-start R/W, DVD Combo, Blue-ray DVD, set top box, etc. Operating the Foldback point correction, cycle-by-cycle peak current MOSFET switch in quasi-resonant mode, lower EMI, higher limitation and maximum on time limitation efficiency and lower voltage stress on secondary diodes are Auto restart mode for VCC over-voltage protection, under- expected for the SMPS. Based on the BiCMOS technology, the voltage protection, over-load protection and over- TM CoolSET -Q1 series has a wide operation range (up to 25 V) of IC temperature protection power supply and lower power consumption. It also offers many Latch-off mode for adjustable output over-voltage protection advantages such as a quasi-resonant operation till very low load and transformer short-winding protection increasing the average system efficiency compared to the other conventional solutions the Active Burst Mode operation enables Applications an ultra-low power consumption at standby mode with small and Adapter/Charger, Blue Ray/DVD player, Set-top Box, Digital a controllable output voltage ripple. Photo Frame W p L D f 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 D ~D r1 r4 C VCC ZC VCC Drain C PS 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 Control Unit CoolSET -Q1 R ovs2 Figure 1 Typical application 1 2 2 VDS Package Marking RDSon 230VAC 15% 85-265 VAC Type ICE2QR4765G PG-DSO-12 ICE2QR4765G 650 V 4.70 29 W 17 W 1 typ at T=25C 2 Calculated maximum input power rating at Ta=50C, Ti=125C and without copper area pin as heat sink. Data Sheet Please read the Important Notice and Warnings at the end of this document Revision 2.3 www.infineon.com 2017-09-12 Quasi-Resonant, 650V CoolSET in DS0-12 Package Table of contents Table of contents Table of contents ............................................................................................................................ 2 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 3.3.2 Ringing suppression time .................................................................................................................. 8 3.3.2.1 Switch on determination .............................................................................................................. 8 3.3.3 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 2.3 2017-09-12