D E S I G N K I T / E VA L U AT I O N S Y S T E M – A P P L I C AT I O N T O O L B R I E F N E W A P P L I C A T I O N T O O L B R I E F IPS-DK18 / EVPS001 Schematic EI/EE CORE FERRITE TRANSFORMER 13MM L1 Design Kit and Evaluation System: 5W to 10W Ultra-Green Power Supply TX1 D3 PATENTED SNUBBER 330uH SCHOTTKY 2A 60V IXYS DSS2-60AT2 C4 R2 1.2MEG C2 10uF 400V R14 3MEG 180pF 500V R3 470 1/2W D1 D2 Q1 TAB 1N4148 VOUT+ C5 100uF 16V 105C J1 strap R10A 1k Q1 U1 1k R10 10MEG 1% PDRIVE NDRIVE 1.4A/600V IXYS IXTY1R4N60P ISENSE R13 1k C1 10uF 400V VCC GND OPTO OPTIMIZED FOR VERY LOW STANDBY POWER HICCUP MODE LINE-SIDE OUTPUT POWER LIMITING RBIAS August 2006 R5 240K C8 220pF 0805 0805 3 D5 1 TL431ILP R7 6.19k 1% 0805 - IN-PLUG® Series. Gateway To Low Cost, High Efficiency SMPS Integration. ACIN2 ASIC Advantage Part Number – IPS-DK18 IXYS Part Number – EVPS001 † Design Kit and Evaluation System Available for Qualified Designers Featured Component Summary Table Part Number Company Summary Information Package Qty per Pack / Packing Style IPS18C-D(1) ASIC Advantage Adj. Frequency, Overload Protected, Low Standby PWM Controller 8-Pin PDIP 50 / Tube IPS18C-SO(1) ASIC Advantage Adj. Frequency, Overload Protected, Low Standby PWM Controller 8-Pin SOIC 98 / Tube IPS18C-SO(1)-TR ASIC Advantage Adj. Frequency, Overload Protected, Low Standby PWM Controller 8-Pin SOIC 2500 / Tape and Reel IXTY1R4N60P IXYS Corporation VDSS 600V, Id(25°C) 1.4A , RDS(on,25°C,Max) 9.0 Ω, Qg(on,Typ) 5.2 nC, Rth,jc 2.5 K/W D-Pak 75 / Tube IXTY1R4N60PTRL IXYS Corporation VDSS 600V, Id(25°C) 1.4A , RDS(on,25°C,Max) 9.0 Ω, Qg(on,Typ) 5.2 nC, Rth,jc 2.5 K/W D-Pak 800 / Tape and Reel DSS2-60AT2 IXYS Corporation VRSM/RRM 60V, IFAV(Tc = 85°C) 2A, VF(Typ, Tj = 125°C) .43V, Rth,jb 80 K/W TO-92 1000 / Bulk DSS2-60AT2AP IXYS Corporation VRSM/RRM 60V, IFAV(Tc = 85°C) 2A, VF(Typ, Tj = 125°C) .43V, Rth,jb 80 K/W TO-92 2000 / Ammo Pack Add “-G-LF” in place of (1) to denote RoHS + Lead Free. Excellent Standby Operation And Overload Protection DSS2-60AT2 – Schottky Diode – IXYS IXYS Schottky diodes feature very low forward voltage drop and switching loss, providing cost effective output recitification for switch-mode power supply applications. In addition, the 175°C rated junction temperature and low IRM extend the useful range for many of IXYS Schottky diodes. The DSS2-60AT2 is offered in the TO-92 to minimize board area and cost. 200 Standby Power in “No Load” Conditions 0.45 0.4 140 0.35 120 Pout(W) Pin (mW) 160 100 80 0.3 0.25 0.2 0.15 60 Line and load overvoltage protections Built-in overload/short-circuit protection Adjustable frequency Cycle skipping for very low board standby power 40 0.1 20 0.05 0 0 100 Average Output Power in Overload Condition F(Vin) / Hiccup Mode 0.5 180 System Features • • • • VOUT- ACIN1 D6 BRIDGE IXTY1R4N60P – PolarHV™ Power MOSFET – IXYS PolarHV™ Power MOSFETs are designed with IXYS unique cell design and process improvements that dramatically enhance the power handling capability and system efficiency. These design and process changes provide “best-in-class” on-resistance, gate charge, thermal resistance and power handling capability. The PolarHV™ line is offered in 500V and 600V versions, with current ratings to as high as 100A. Note that 800V and higher versions are also in development. W W W . I N - P L U G . C O M C9 68nF R9 2.2K U3 OPTO Q817C GNDSECONDARY HICCUP Mode and Protection Against Feedback Loop Failure The IPS18 flyback controller offers a built-in overload protection called “HICCUP” and a protection against feedback loop failure with a simple low-cost Zener diode. (see ASIC Advantage HICCUP MODE FLYBACK CONTROLLERS flyer for details). Less than 100mW of board standby power Low startup current < 70µA Operational current consumption as low as 350µA Only 150mW when output shorted 220pF R11 100K 1% 0805 GNDPRIMARY IPS18 – Ultra-Green Flyback Controller – ASIC Advantage The new IPS18 Ultra-Green flyback controller is a power saving technology used in Switch Mode Power Supplies to keep the power consumption to a minimum. It has been optimized for SMPSs in the 2 - 25 Watts power range that remain connected to the mains wall outlet with an active load, as well as for applications where an SMPS has to deliver a small amount of power in "light load" conditions. It monitors the output power from the primary and no secondary sensing circuitry is required, which also results in power and cost savings. It incorporates a special circuitry called “HICCUP” that involves a counter and other digital blocks which prevent delivering a high current to the load when overloaded. It enters cycle skipping in “no load” or light load” conditions to reduce standby power to a trickle. The IPS18 can be used in applications where the input voltage ranges from 12 to 400Volts. It also features adjustable frequency from 15 to 500KHz (operating at high frequency reduces size and cost of magnetic and decoupling components), separate P & N drive to simplify EMI control, line overvoltage protection and a thermal shutdown. In most of the applications below 10 Watts it saves costly filtering components such as X-Cap, Y-Cap. MOV etc... • • • • C7 2 Featured Component Description R6 23.7k 1% 0805 R8 1k 0805 OVERV IPS18 R4 1.5_ohm C3 10uF 16V C10 100uF 16V 105C OR PROTECTION ZENER DIODE (1N4743A) C6 120 140 160 Vin (VAC) 180 200 220 100 120 140 160 180 200 220 Vin (VAC) W W W . I X Y S . C O M W W W . I N - P L U G . C O M W W W . I X Y S . C O M D E S I G N K I T / E VA L U AT I O N S Y S T E M – A P P L I C AT I O N T O O L B R I E F N E W A P P L I C A T I O N T O O L B R I E F IPS-DK18 / EVPS001 Schematic EI/EE CORE FERRITE TRANSFORMER 13MM L1 Design Kit and Evaluation System: 5W to 10W Ultra-Green Power Supply TX1 D3 PATENTED SNUBBER 330uH SCHOTTKY 2A 60V IXYS DSS2-60AT2 C4 R2 1.2MEG C2 10uF 400V R14 3MEG 180pF 500V R3 470 1/2W D1 D2 Q1 TAB 1N4148 VOUT+ C5 100uF 16V 105C J1 strap R10A 1k Q1 U1 1k R10 10MEG 1% PDRIVE NDRIVE 1.4A/600V IXYS IXTY1R4N60P ISENSE R13 1k C1 10uF 400V VCC GND OPTO OPTIMIZED FOR VERY LOW STANDBY POWER HICCUP MODE LINE-SIDE OUTPUT POWER LIMITING RBIAS August 2006 R5 240K C8 220pF 0805 0805 3 D5 1 TL431ILP R7 6.19k 1% 0805 - IN-PLUG® Series. Gateway To Low Cost, High Efficiency SMPS Integration. ACIN2 ASIC Advantage Part Number – IPS-DK18 IXYS Part Number – EVPS001 † Design Kit and Evaluation System Available for Qualified Designers Featured Component Summary Table Part Number Company Summary Information Package Qty per Pack / Packing Style IPS18C-D(1) ASIC Advantage Adj. Frequency, Overload Protected, Low Standby PWM Controller 8-Pin PDIP 50 / Tube IPS18C-SO(1) ASIC Advantage Adj. Frequency, Overload Protected, Low Standby PWM Controller 8-Pin SOIC 98 / Tube IPS18C-SO(1)-TR ASIC Advantage Adj. Frequency, Overload Protected, Low Standby PWM Controller 8-Pin SOIC 2500 / Tape and Reel IXTY1R4N60P IXYS Corporation VDSS 600V, Id(25°C) 1.4A , RDS(on,25°C,Max) 9.0 Ω, Qg(on,Typ) 5.2 nC, Rth,jc 2.5 K/W D-Pak 75 / Tube IXTY1R4N60PTRL IXYS Corporation VDSS 600V, Id(25°C) 1.4A , RDS(on,25°C,Max) 9.0 Ω, Qg(on,Typ) 5.2 nC, Rth,jc 2.5 K/W D-Pak 800 / Tape and Reel DSS2-60AT2 IXYS Corporation VRSM/RRM 60V, IFAV(Tc = 85°C) 2A, VF(Typ, Tj = 125°C) .43V, Rth,jb 80 K/W TO-92 1000 / Bulk DSS2-60AT2AP IXYS Corporation VRSM/RRM 60V, IFAV(Tc = 85°C) 2A, VF(Typ, Tj = 125°C) .43V, Rth,jb 80 K/W TO-92 2000 / Ammo Pack Add “-G-LF” in place of (1) to denote RoHS + Lead Free. Excellent Standby Operation And Overload Protection DSS2-60AT2 – Schottky Diode – IXYS IXYS Schottky diodes feature very low forward voltage drop and switching loss, providing cost effective output recitification for switch-mode power supply applications. In addition, the 175°C rated junction temperature and low IRM extend the useful range for many of IXYS Schottky diodes. The DSS2-60AT2 is offered in the TO-92 to minimize board area and cost. 200 Standby Power in “No Load” Conditions 0.45 0.4 140 0.35 120 Pout(W) Pin (mW) 160 100 80 0.3 0.25 0.2 0.15 60 Line and load overvoltage protections Built-in overload/short-circuit protection Adjustable frequency Cycle skipping for very low board standby power 40 0.1 20 0.05 0 0 100 Average Output Power in Overload Condition F(Vin) / Hiccup Mode 0.5 180 System Features • • • • VOUT- ACIN1 D6 BRIDGE IXTY1R4N60P – PolarHV™ Power MOSFET – IXYS PolarHV™ Power MOSFETs are designed with IXYS unique cell design and process improvements that dramatically enhance the power handling capability and system efficiency. These design and process changes provide “best-in-class” on-resistance, gate charge, thermal resistance and power handling capability. The PolarHV™ line is offered in 500V and 600V versions, with current ratings to as high as 100A. Note that 800V and higher versions are also in development. W W W . I N - P L U G . C O M C9 68nF R9 2.2K U3 OPTO Q817C GNDSECONDARY HICCUP Mode and Protection Against Feedback Loop Failure The IPS18 flyback controller offers a built-in overload protection called “HICCUP” and a protection against feedback loop failure with a simple low-cost Zener diode. (see ASIC Advantage HICCUP MODE FLYBACK CONTROLLERS flyer for details). Less than 100mW of board standby power Low startup current < 70µA Operational current consumption as low as 350µA Only 150mW when output shorted 220pF R11 100K 1% 0805 GNDPRIMARY IPS18 – Ultra-Green Flyback Controller – ASIC Advantage The new IPS18 Ultra-Green flyback controller is a power saving technology used in Switch Mode Power Supplies to keep the power consumption to a minimum. It has been optimized for SMPSs in the 2 - 25 Watts power range that remain connected to the mains wall outlet with an active load, as well as for applications where an SMPS has to deliver a small amount of power in "light load" conditions. It monitors the output power from the primary and no secondary sensing circuitry is required, which also results in power and cost savings. It incorporates a special circuitry called “HICCUP” that involves a counter and other digital blocks which prevent delivering a high current to the load when overloaded. It enters cycle skipping in “no load” or light load” conditions to reduce standby power to a trickle. The IPS18 can be used in applications where the input voltage ranges from 12 to 400Volts. It also features adjustable frequency from 15 to 500KHz (operating at high frequency reduces size and cost of magnetic and decoupling components), separate P & N drive to simplify EMI control, line overvoltage protection and a thermal shutdown. In most of the applications below 10 Watts it saves costly filtering components such as X-Cap, Y-Cap. MOV etc... • • • • C7 2 Featured Component Description R6 23.7k 1% 0805 R8 1k 0805 OVERV IPS18 R4 1.5_ohm C3 10uF 16V C10 100uF 16V 105C OR PROTECTION ZENER DIODE (1N4743A) C6 120 140 160 Vin (VAC) 180 200 220 100 120 140 160 180 200 220 Vin (VAC) W W W . I X Y S . C O M W W W . I N - P L U G . C O M W W W . I X Y S . C O M