FSDM0565REIWDTU

FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) October 2006 FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Features Internal Avalanche-Rugged SenseFET Advanced Burst-Mode Operation Consumes Under 1W at 240VAC & 0.5W load Precision Fixed Operating Frequency (66kHz) Internal Start-up Circuit Improved Pulse-by-Pulse Current Limiting Over-Voltage Protection (OVP) Overload Protection (OLP) Internal Thermal Shutdown Function (TSD) Auto-Restart Mode Under-Voltage Lockout (UVLO) with hysteresis Low Operating Current (2.5mA) Built-in Soft-Start Description The FSDM0465RE, FSDM0565RE and FSDM07652RE are an integrated Pulse Width Modulator (PWM) and SenseFET specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high-voltage power-switching regulator that combines an avalanche-rugged SenseFET with a current mode PWM control block. The PWM controller includes an integrated fixed-frequency oscillator, undervoltage lockout, leading-edge blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise-current sources for a loop compensation, and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, it can reduce total cost; component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform well suited for cost-effective designs of flyback converters. Applications SMPS for LCD monitor and STB Adaptor Ordering Information Product Number FSDM0465REWDTU(1) FSDM0565REWDTU FSDM0565REIWDTU FSDM07652REWDTU Note: 1. WDTU: Forming Type. Package TO-220F-6L (Forming) TO-220F-6L (Forming) I2-PAK-6L (Forming) TO-220F-6L (Forming) Marking Code DM0465RE DM0565RE DM0565RE DM07652RE BVDSS 650V 650V 650V 650V RDS(ON) Max. 2.6 Ω 2.2 Ω 2.2 Ω 1.6 Ω FPSTM is a trademark of Fairchild Semiconductor Corporation. © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Typical Circuit AC IN DC OUT Vstr PWM FB Drain VCC Source FSDM0565RE Rev: 00 Figure 1. Typical Flyback Application Output Power Table Product FSDM0465RE FSDM0565RE FSDM0565REI FSDM07652RE 230VAC ±15%(4) Adapter 48W 60W 60W 70W (2) 85–265VAC (3) Open Frame 56W 70W 70W 80W Adapter 40W 50W 50W 60W (2) Open Frame(3) 48W 60W 60W 70W Notes: 2. Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient. 3. Maximum practical continuous power in an open-frame design at 50°C ambient. 4. 230VAC or 100/115VAC with doubler. © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 2 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Internal Block Diagram VCC 3 NC 5 0.5/0.7V + VCC Idelay FB 4 R Q Vstr 6 Istart Vref Internal Bias Drain 1 8V/12V VCC good Vref OSC IFB 2.5R PWM S Q Soft-start R LEB Gate driver VSD VCC S Q Q 2 GND Vovp TSD VCC good R VCL FSDM0565RE Rev: 00 Figure 2. Functional Block Diagram of FSDM0x65RE © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 3 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Pin Configuration TO-220F-6L 6. Vstr 5. NC 4. FB 3. VCC 2. GND 1. Drain I2-PAK-6L 6. Vstr 5. NC 4. FB 3. VCC 2. GND 1. Drain Figure 3. Pin Configuration (Top View) Pin Definitions Pin # 1 2 Name Drain GND Description SenseFET drain. This pin is the high-voltage power SenseFET drain. It is designed to drive the transformer directly. Ground. This pin is the control ground and the SenseFET source. Power Supply. This pin is the positive supply voltage input. During start-up, the power is supplied by an internal high-voltage current source connected to the Vstr pin. When VCC reaches 12V, the internal high-voltage current source is disabled and the power is supplied from the auxiliary transformer winding. Feedback. This pin is internally connected to the inverting input of the PWM comparator. The collector of an opto-coupler is typically tied to this pin. For stable operation, a capacitor should be placed between this pin and GND. If the voltage of this pin reaches 6.0V, the overload protection is activated, resulting in shutdown of the FPS™. No Connection. Start-up. This pin is connected directly to the high-voltage DC link. At start-up, the internal high-voltage current source supplies internal bias and charges the external capacitor connected to the VCC pin. Once VCC reaches 12V, the internal current source is disabled. 3 VCC 4 FB 5 NC 6 Vstr © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 4 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Absolute Maximum Ratings The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. TA = 25°C, unless otherwise specified. Symbol BVDSS Vstr IDM Parameter Drain Source Breakdown Voltage Max. Voltage at Vstart pin FSDM0465RE Drain Current Pulsed(5) FSDM0565RE FSDM07652RE FSDM0465RE TC=25°C TC=25°C TC=25°C TC=25°C TC=100°C TC=25°C TC=100°C TC=25°C TC=100°C FSDM0465RE FSDM0565RE FSDM07652RE Value 650 650 9.6 11 15 2.2 1.4 2.8 1.7 3.8 2.4 190 370 20 -0.3 to VCC TO-220-6L I2-PAK-6L 45 75 Internally limited -25 to +85 -55 to +150 2.0 (GND-Vstr/VFB=1.5kV) 300 (GND-Vstr/VFB=225V) Unit V V ADC ID Continuous Drain Current FSDM0565RE FSDM07652RE A EAS VCC VFB Single Pulsed Avalanche Energy(6) Supply Voltage Input Voltage Range mJ V V W °C °C °C kV V PD(Watt H/S) Total Power Dissipation (TC=25°C) TJ TA TSTG Operating Junction Temperature Operating Ambient Temperature Storage Temperature ESD Capability, HBM Model (All pins except Vstr and FB) ESD Capability, Machine Model (All pins except Vstr and FB) Notes: 5. Repetitive rating: Pulse width limited by maximum junction temperature. 6. L=14mH, starting TJ=25°C. Thermal Impedance TA=25°C, unless otherwise specified. Symbol θJA(7) θJC(8) Parameter Junction-to-Ambient Thermal Resistance Junction-to-Case Thermal Resistance Package TO-220F-6L I2-PAK-6L TO-220F-6L I2-PAK-6L Value 49.90 30 2.78 1.67 Unit °C/W °C/W Notes: 7. Free-standing, with no heat-sink, under natural convection. 8. Infinite cooling condition - refer to the SEMI G30-88. © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 5 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Electrical Characteristics TA = 25°C unless otherwise specified. Symbol SenseFET SECTION Parameter Condition VDS = 650V, VGS = 0V VDS = 520V, VGS = 0V, TC = 125°C VDS = 650V, VGS = 0V VDS = 520V, VGS = 0V, TC = 125°C VDS = 650V, VGS = 0V VDS = 520V, VGS = 0V, TC = 125°C Min. Typ. Max. Unit 250 250 500 500 500 500 2.20 2.60 2.20 1.60 pF Ω 1.76 1.40 60 µA FSDM0465RE IDSS Zero Gate Voltage Drain Current FSDM0565RE FSDM07652RE FSDM0465RE RDS(ON) Static Drain Source on Resistance(9) FSDM0565RE FSDM07652RE FSDM0465RE COSS Output Capacitance FSDM0565RE FSDM07652RE FSDM0465RE td(on) Turn-On Delay Time FSDM0565RE FSDM07652RE FSDM0465RE tr Rise Time FSDM0565RE FSDM07652RE FSDM0465RE td(off) Turn-Off Delay Time FSDM0565RE FSDM07652RE FSDM0465RE tf Fall Time FSDM0565RE FSDM07652RE CONTROL SECTION fOSC ΔfSTABLE ΔfOSC IFB DMAX DMIN VSTART VSTOP tS/S Switching Frequency Switching Frequency Stability Switching Frequency Variation(10) FSDM0465RE Maximum Duty Cycle FSDM0565RE FSDM07652RE Minimum Duty Cycle UVLO Threshold Voltage Internal Soft-Start Time Feedback Source Current VGS = 10V, ID = 2.5A VGS = 0V, VDS = 25V, f = 1MHz 78 100 23 VDD = 325V, ID = 5A 22 22 20 nsec VDD = 325V, ID = 5A 52 60 65 nsec VDD = 325V, ID = 5A 95 115 27 nsec VDD = 325V, ID = 5A 50 65 nsec VFB = 3V 13V ≤ VCC ≤ 18V -25°C ≤ TA ≤ 85°C VFB = GND 60 0 0 0.7 77 77 75 66 1 ±5 0.9 82 82 80 12 8 10 72 3 ±10 1.1 87 87 85 0 13 9 15 kHz % % mA % % % % V V msec VFB = GND VFB = GND VFB = 3 11 7 © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 6 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Electrical Characteristics (Continued) TA = 25°C unless otherwise specified. Symbol BURST MODE SECTION VBURH VBURL VSD IDELAY tLEB ILIMIT VOVP TSD IOP IOP(MIN) IOP(MAX) Parameter Condition VCC = 14V VCC = 14V VFB ≥ 5.5V VFB = 5V Min. Typ. Max. Unit 0.7 0.5 5.5 2.8 1.60 2.00 2.20 18 130 6.0 3.5 250 1.80 2.25 2.50 19 145 6.5 4.2 2.00 2.50 2.70 20 160 V °C A V V V µA nsec Burst Mode Voltages PROTECTION SECTION Shutdown Feedback Voltage Shutdown Delay Current Leading-Edge Blanking Time FSDM0465RE Peak Current Limit(11) FSDM0565RE VFB = 5V, VCC = 14V VFB = 5V, VCC = 14V FSDM07652RE VFB = 5V, VCC = 14V Over-Voltage Protection Thermal Shutdown Temperature(10) VFB = GND, VCC = 14V Operating Supply Current(12) VFB = GND, VCC = 10V VFB = GND, VCC = 18V TOTAL DEVICE SECTION 2.5 5.0 mA Notes: 9. Pulse test: Pulse width ≤ 300µS, duty cycle ≤ 2%. 10. These parameters, although guaranteed at the design, are not tested in production. 11. These parameters indicate the inductor current. 12. This parameter is the current flowing into the control IC. © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 7 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Comparison Between FS6M07652RTC and FSDM0x65RE Function FS6M07652RTC FSDM0x65RE FSDM0x65RE Advantages Gradually increasing current limit during soft-start reduces peak current and voltage component stresses Eliminates external soft-start components in most applications Reduces or eliminates output overshoot Improves light-load efficiency Reduces no-load consumption Soft-Start Adjustable soft-start Internal soft-start with time using an external typically 10ms (fixed) capacitor Burst-Mode Operation Built into controller Output voltage drops to around half Built into controller Output voltage fixed © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 8 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Typical Performance Characteristics These characteristic graphs are normalized at TA= 25°C. 1.2 Start Thershold Voltage (Vstart ) 1.0 Operating Current (I op) 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 Junction Temperature [°C] Junction Temperature [°C] Figure 4. Operating Current vs. Temp. Figure 5. Start Threshold Voltage vs. Temp. 1.2 Stop Threshold Voltage (Vstop) 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 Junction Temperature [°C] Operating Frequency (f osc) Junction Temperature [°C] Figure 6. Stop Threshold Voltage vs. Temp. Figure 7. Operating Frequency vs. Temp. 1.2 Maximum Duty Cycle (D MAX) 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 FB Source Current (I FB) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 Junction Temperature [°C] Junction Temperature [°C] Figure 8. Maximum Duty Cycle vs. Temp. Figure 9. Feedback Source Current vs. Temp. © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 9 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Typical Performance Characteristics (Continued) These characteristic graphs are normalized at TA= 25°C. 1.2 Shutdown Delay Current (I DELAY) -25 0 25 50 75 100 125 150 Shutdown FB Voltage (VSD) 1.0 0.8 0.6 0.4 0.2 0.0 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 Junction Temperature [°C] Junction Temperature [°C] Figure 10. Shutdown Feedback Voltage vs. Temp. Figure 11. Shutdown Delay Current vs. Temp. FB Burst-Mode Enable Voltage (VFBE) 1.2 Over-Voltage Protection (Vovp) 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 Junction Temperature [°C] Junction Temperature [°C] Figure 12. Over-Voltage Protection vs. Temp. Figure 13. Burst-Mode Enable Voltage vs. Temp. FB Burst-Mode Disable Voltage (VFBD) 1.2 1.0 Peak Current Limit (Self protection) (I over) -25 0 25 50 75 100 125 150 0.8 0.6 0.4 0.2 0.0 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature [°C] Junction Temperature [°C] Figure 14. Burst-Mode Disable Voltage vs. Temp. Figure 15. Current Limit vs. Temp. © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 10 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Typical Performance Characteristics (Continued) These characteristic graphs are normalized at TA= 25°C. 1.2 1.0 Soft-Start Time (Normalized to 25°C) 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature [°C] Figure 16. Soft-Start Time vs. Temp. . © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 11 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Functional Description 1. Start-up: In previous generations of Fairchild Power Switches (FPS™), the VCC pin had an external start-up resistor to the DC input voltage line. In this generation, the start-up resistor is replaced by an internal highvoltage current source. At start-up, the internal highvoltage current source supplies the internal bias and charges the external capacitor (Cvcc) connected to the VCC pin, as illustrated in Figure 17. When VCC reaches 12V, the FSDM0x65RE begins switching and the internal high-voltage current source is disabled. The FSDM0x65RE continues normal switching operation and the power is supplied from the auxiliary transformer winding unless VCC goes below the stop voltage of 8V. 2.1 Pulse-by-Pulse Current Limit: Because currentmode control is employed, the peak current through the SenseFET is limited by the inverting input of PWM comparator (VFB*) as shown in Figure 18. Assuming that the 0.9mA current source flows only through the internal resistor (2.5R + R = 2.8kΩ), the cathode voltage of diode D2 is about 2.5V. Since D1 is blocked when the feedback voltage (VFB) exceeds 2.5V, the maximum voltage of the cathode of D2 is clamped at this voltage, thus clamping VFB*. Therefore, the peak value of the current through the SenseFET is limited. 2.2 Leading Edge Blanking (LEB): At the instant the internal SenseFET is turned on, a high-current spike occurs through the SenseFET, caused by primary-side capacitance and secondary-side rectifier reverse recovery. Excessive voltage across the Rsense resistor would lead to incorrect feedback operation in the current mode PWM control. To counter this effect, the FSDM0x65RE employs a leading-edge blanking (LEB) circuit. This circuit inhibits the PWM comparator for a short time (tLEB) after the SenseFET is turned on. VDC CVcc VCC Vref IFB OSC VCC 3 Istart Vref 8V/12V VCC good Internal Bias 6 Idelay Vstr VO H11A817A VFB CB 4 D1 D2 2.5R + Vfb* SenseFET R Gate driver KA431 - VSD FSDM0565RE Rev: 00 OLP Rsense FSDM0565RE Rev: 00 Figure 18. Pulse-Width-Modulation (PWM) Circuit Figure 17. Internal Start-up Circuit 3. Protection Circuit: The FSDM0x65RE has several self-protective functions, such as overload protection (OLP), over-voltage protection (OVP), and thermal shutdown (TSD). Because these protection circuits are fully integrated into the IC without external components, the reliability is improved without increasing cost. Once a fault condition occurs, switching is terminated and the SenseFET remains off, which causes VCC to fall. When VCC reaches the UVLO stop voltage of 8V, the protection is reset and the internal high-voltage current source charges the VCC capacitor via the Vstr pin. When VCC reaches the UVLO start voltage of 12V, the FSDM0x65RE resumes normal operation. In this manner, the auto-restart can alternately enable and disable the switching of the power SenseFET until the fault condition is eliminated (see Figure 19). 2. Feedback Control: FSDM0x65RE employs currentmode control, as shown in Figure 18. An opto-coupler (such as the H11A817A) and shunt regulator (such as the KA431) are typically used to implement the feedback network. Comparing the feedback voltage with the voltage across the Rsense resistor, plus an offset voltage, makes it possible to control the switching duty cycle. When the reference pin voltage of the shunt regulator exceeds the internal reference voltage of 2.5V, the optocoupler LED current increases, pulling down the feedback voltage and reducing the duty cycle. This event typically occurs when the input voltage is increased or the output load is decreased. © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 12 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) VDS Power on Fault occurs Fault removed VFB FSDM0565RE Rev: 00 Overload protection 6.0V 2.5V VCC T12= CFB*(6.0-2.5)/Idelay 12V 8V T1 T2 t t Normal operation Fault situation Normal operation Figure 20. Overload Protection FSDM0565RE Rev: 00 Figure 19. Auto Restart Operation 3.1 Overload Protection (OLP): Overload is defined as the load current exceeding a pre-set level due to an unexpected event. In this situation, the protection circuit should be activated to protect the SMPS. Even when the SMPS is in normal operation, the overload protection circuit can be activated during the load transition. To avoid this undesired operation, the overload protection circuit is designed to be activated after a specified time to determine whether it is a transient situation or a true overload situation. Because of the pulse-by-pulse current limit capability, the maximum peak current through the SenseFET is limited, and therefore the maximum input power is restricted with a given input voltage. If the output consumes beyond this maximum power, the output voltage (VO) decreases below the set voltage. This reduces the current through the optocoupler LED, which also reduces the opto-coupler transistor current, thus increasing the feedback voltage (VFB). If VFB exceeds 2.5V, D1 is blocked and the 3.5µA current source starts to charge CB slowly up to VCC. In this condition, VFB continues increasing until it reaches 6V, when the switching operation is terminated, as shown in Figure 20. The delay time for shutdown is the time required to charge CB from 2.5V to 6.0V with 3.5µA. A 10 ~ 50ms delay time is typical for most applications. 3.2 Over-Voltage Protection (OVP): If the secondary side feedback circuit were to malfunction or a solder defect caused an opening in the feedback path, the current through the opto-coupler transistor becomes almost zero. In this event, VFB climbs in a similar manner to the overload situation, forcing the preset maximum current to be supplied to the SMPS until the overload protection is activated. Because more energy than required is provided to the output, the output voltage may exceed the rated voltage before the overload protection is activated, resulting in the breakdown of the devices in the secondary side. To prevent this situation, an overvoltage protection (OVP) circuit is employed. In general, VCC is proportional to the output voltage and the FSDM0x65RE uses VCC instead of directly monitoring the output voltage. If VCC exceeds 19V, an OVP circuit is activated, resulting in the termination of the switching operation. To avoid undesired activation of OVP during normal operation, VCC should be designed below 19V. 3.3 Thermal Shutdown (TSD): The SenseFET and the control IC are built in one package. This makes it easy for the control IC to detect the heat generation from the SenseFET. When the temperature exceeds ~150°C, the thermal shutdown is activated. 4. Soft-Start: The FSDM0x65RE has an internal softstart circuit that increases PWM comparator inverting input voltage, together with the SenseFET current, slowly after it starts up. The typical soft-start time is 10ms. The pulse width to the power switching device is progressively increased to establish the correct working conditions for transformers, inductors, and capacitors. The voltage on the output capacitors is progressively increased with the intention of smoothly establishing the required output voltage. It also helps prevent transformer saturation and reduces the stress on the secondary diode during start-up. © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 13 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) 5. Burst Operation: To minimize power dissipation in standby mode, the FSDM0x65RE enters burst-mode operation. As the load decreases, the feedback voltage decreases. As shown in Figure 21, the device automatically enters burst mode when the feedback voltage drops below VBURL(500mV). At this point, switching stops and the output voltages start to drop at a rate dependent on standby current load. This causes the feedback voltage to rise. Once it passes VBURH (700mV), switching resumes. The feedback voltage then falls and the process repeats. Burst-mode operation alternately enables and disables switching of the power SenseFET, thereby reducing switching loss in standby mode. Vo VOset VFB 0.7V 0.5V IDS VDS time Switching disabled FSDM0565RE Rev: 00 T1 T2 T3 Switching disabled T4 Figure 21. Waveforms of Burst Operation © 2006 Fairchild Semiconductor Corporation FSDM0465RE, FSDM0565RE, FSDM07652RE Rev. 1.0.1 14 www.fairchildsemi.com FSDM0465RE, FSDM0565RE, FSDM07652RE Green Mode Fairchild Power Switch (FPS™) Application Information Application LCD Monitor Output Power 40W Input Voltage Universal input (85-265VAC) Output Voltage (Max. Current) 5V (2.0A) 12V (2.5A) Features High efficiency (>81% at 85VAC input) Low zero load power consumption (