(FSQxxx) Green Mode Fairchild Power Switch

www.DataSheet4U.com FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 — Green Mode Fairchild Power Switch (FPS™) May 2007 FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter - Low EMI and High Efficiency Features Optimized for Valley Switching (VSC) Low EMI through Variable Frequency Control and Inherent Frequency Modulation High-Efficiency through Minimum Voltage Switching Narrow Frequency Variation Range over Wide Load and Input Voltage Variation Advanced Burst-Mode Operation for Low Standby Power Consumption Pulse-by-Pulse Current Limit Various Protection Functions: Overload Protection (OLP), Over-Voltage Protection (OVP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD) Under-Voltage Lockout (UVLO) with Hysteresis Internal Start-up Circuit Internal High-Voltage SenseFET (650V) Built-in Soft-Start (15ms) Description A Valley Switching Converter generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ-series is an integrated Pulse-Width Modulation (PWM) controller and SenseFET specifically designed for valley switching operation with minimal external components. The PWM controller includes an integrated fixed-frequency oscillator, Under-Voltage Lockout, Leading Edge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and self-protection circuitry. Compared with discrete MOSFET and PWM controller solutions, the FSQ-series reduces total cost, component count, size and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform that is well suited for costeffective designs of valley switching fly-back converters. Applications Power Supply for DVP Player and DVD Recorder, Set-Top Box Adapter Auxiliary Power Supply for PC, LCD TV, and PDP TV Related Application Notes AN-4137, AN-4141, AN-4147, AN-4150 (Flyback) AN-4134 (Forward) FPSTM is a trademark of Fairchild Semiconductor Corporation. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 www.fairchildsemi.com FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 — Green Mode Fairchild Power Switch (FPS™) Ordering Information Product Number(5) FSQ311 FSQ311L FSQ321 FSQ321L FSQ0165RN PKG. Operating Temp. Current Limit Maximum Output Power(1) RDS(ON) Max. 230VAC±15%(2) Adapter(3) Open-Frame(4) 85-265VAC Adapter(3) Open-Frame(4) Replaces Devices 8-DIP -25 to +85°C 8-LSOP 8-DIP -25 to +85°C 8-LSOP 8-DIP -25 to +85°C 0.9A 10Ω 10W 15W 9W 13W 0.6A 19Ω 8W 12W 7W 10W 0.6A 19Ω 7W 10W 6W 8W FSDL321 FSDM311 FSDL321 FSDM311 FSDL0165RN FSDM0265RN FSDM0265RNB FSDM0365RN FSDM0365RNB FSQ0165RL 8-LSOP FSQ0265RN 8-DIP -25 to +85°C FSQ0265RL 8-LSOP FSQ0365RN 8-DIP -25 to +85°C FSQ0365RL 8-LSOP 1.5A 4.5Ω 17.5W 25W 13W 19W 1.2A 6Ω 14W 20W 11W 16W Notes: 1. The junction temperature can limit the maximum output power. 2. 230VAC or 100/115VAC with doubler. The maximum power with CCM operation. 3. Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient temperature. 4. Maximum practical continuous power in an open-frame design at 50°C ambient. 5. PB-free package per JEDEC J-STD-020B. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 2 www.fairchildsemi.com FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 — Green Mode Fairchild Power Switch (FPS™) Typical Circuit VO AC IN Vstr Drain PWM Sync Vfb Vcc GND FSQ0365RN Rev.00 Figure 1. Typical Flyback Application Internal Block Diagram Sync 4 + 0.7V/0.2V + VCC Idelay Vref IFB 3R R SoftStart PWM S LEB 200ns Q Gate driver 0.35/0.55 VBurst OSC + Vref VCC good 8V/12V Vstr 5 Vcc 2 Drain 6 7 8 Vfb 3 R Q AOCP 1 6V VSD Sync Vovp 6V VCC good FSQ0365RN Rev.00 TSD 2.5μs time delay S Q VOCP (1.1V) GND R Q Figure 2. Functional Block Diagram © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 3 www.fairchildsemi.com FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 — Green Mode Fairchild Power Switch (FPS™) Pin Configuration GND Vcc Vfb Sync 8-DIP 8-LSOP V D D D Vstr FSQ0365RN Rev.01 Figure 3. Pin Configuration (Top View) Pin Definitions Pin # 1 Name GND Description SenseFET source terminal on primary side and internal control ground. Positive supply voltage input. Although connected to an auxiliary transformer winding, current is supplied from pin 5 (Vstr) via an internal switch during startup (see Internal Block Diagram Section). It is not until VCC reaches the UVLO upper threshold (12V) that the internal start-up switch opens and device power is supplied via the auxiliary transformer winding. The feedback voltage pin is the non-inverting input to the PWM comparator. It has a 0.9mA current source connected internally while a capacitor and optocoupler are typically connected externally. There is a time delay while charging external capacitor Cfb from 3V to 6V using an internal 5μA current source. This time delay prevents false triggering under transient conditions but still allows the protection mechanism to operate under true overload conditions. This pin is internally connected to the sync-detect comparator for valley switching. Typically the voltage of the auxiliary winding is used as Sync input voltage and external resistors and capacitor are needed to make time delay to match valley point. The threshold of the internal sync comparator is 0.7V/0.2V. This pin is connected to the rectified AC line voltage source. At start-up the internal switch supplies internal bias and charges an external storage capacitor placed between the Vcc pin and ground. Once the Vcc reaches 12V, the internal switch is opened. The drain pins are designed to connect directly to the primary lead of the transformer and are capable of switching a maximum of 700V. Minimizing the length of the trace connecting these pins to the transformer will decrease leakage inductance. 2 Vcc 3 Vfb 4 Sync 5 Vstr 6,7,8 Drain © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 4 www.fairchildsemi.com FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 — Green Mode Fairchild Power Switch (FPS™) Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. TA = 25°C, unless otherwise specified. Symbol VSTR VDS VCC VFB VSync Vstr Pin Voltage Drain Pin Voltage Supply Voltage Characteristic Min. 500 650 Max. Unit V V 20 -0.3 -0.3 FSQ0365 FSQ0265 FSQ0165 FSQ321/311 FSQ0365 FSQ0265 FSQ0165 FSQ321/311 9.0 9.0 12 8 4 1.5 230 140 50 10 1.5 -40 -40 -55 Internally limited 85 150 CLASS1 C CLASS B V V V Feedback Voltage Range Sync Pin Voltage Range IDM Drain Current Pulsed(6) A EAS Single Pulsed Avalanche Energy(7) mJ PD TJ TA TSTG ESD Total Power Dissipation Recommended Operating Junction Temperature Operating Ambient Temperature Storage Temperature Human Body Model(8) Machine Model(8) W °C °C °C Notes: 6. Repetitive rating: Pulse width limited by maximum junction temperature. 7. L=51mH, starting TJ=25°C. 8. Meets JEDEC standards JESD22-A114 and JESD22-A115. Thermal Impedance(9) Symbol 8-DIP θJA(10) θJC(11) θJT(12) Junction-to-Ambient Thermal Resistance Junction-to-Case Thermal Resistance Junction-to-Top Thermal Resistance 80 20 35 °C/W Parameter Value Unit Notes: 9. All items are tested with the standards JESD 51-2 and 51-10 (DIP). 10. Free-standing, with no heat-sink, under natural convection. 11. Infinite cooling condition - refer to the SEMI G30-88. 12. Measured on the package top surface. © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 5 www.fairchildsemi.com FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 — Green Mode Fairchild Power Switch (FPS™) Electrical Characteristics TA = 25°C unless otherwise specified. Symbol SenseFET Section BVDSS IDSS Parameter Drain Source Breakdown Voltage Zero-Gate-Voltage Drain Current FSQ0365 Drain-Source On-State Resistance(13) FSQ0265 FSQ0165 FSQ321/311 FSQ0365 FSQ0265 FSQ0165 FSQ321/311 FSQ0365 FSQ0265 FSQ0165 FSQ321/311 FSQ0365 Reverse Transfer Capacitance FSQ0265 FSQ0165 FSQ321/311 FSQ0365 FSQ0265 FSQ0165 FSQ321/311 FSQ0365 FSQ0265 FSQ0165 FSQ321/311 FSQ0365 FSQ0265 FSQ0165 FSQ321/311 FSQ0365 FSQ0265 FSQ0165 FSQ321/311 Condition VCC = 0V, ID = 100µA VDS = 560V Min. Typ. Max. Unit 650 100 3.5 4.5 6.0 10.0 19.0 Ω 5.0 8.0 14.0 315 550 250 162 47 38 25 18 9.0 17.0 10.0 3.8 11.2 20.0 12.0 9.5 34 15 4 19 28.2 55.0 30.0 33.0 32 25 10 42 V µA RDS(ON) TJ = 25°C, ID = 0.5A CSS Input Capacitance VGS = 0V, VDS = 25V, f = 1MHz pF COSS Output Capacitance VGS = 0V, VDS = 25V, f = 1MHz pF CRSS VGS = 0V, VDS = 25V, f = 1MHz pF td(on) Turn-On Delay Time VDD = 350V, ID = 25mA ns tr Rise Time VDD = 350V, ID = 25mA ns td(off) Turn-Off Delay Time VDD = 350V, ID = 25mA ns tf Fall Time VDD = 350V, ID = 25mA ns Control Section tON.MAX1 tON.MAX2 tB1 tB2 Maximum On Time1 Maximum On Time2 Blanking Time1 Blanking Time2 All but Q321 Q321 All but Q321 Q321 TJ = 25°C TJ = 25°C 10.5 6.35 13.2 7.5 12.0 7.06 15.0 8.2 13.5 7.77 16.8 µs µs µs µs © 2006 Fairchild Semiconductor Corporation FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4 6 www.fairchildsemi.com FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 — Green Mode Fairchild Power Switch (FPS™) Electrical Characteristics (Continued) TA = 25°C unless otherwise specified. Symbol tW fS1 fS2 ΔfS IFB