Fairchild Power Switch Sep, 2004 Power Conversion
GFPS for Mid Power Applications Digital Consumer - Set-Top Box - DVD Players - Printers - LCD Monitor Power Range : 15 ~ 60Watt System Configuration –Flyback with multi-output –Constant Voltage control Development Direction –Low Stand by requirement DVDP / STB - under Po=0.3Watt LCD Monitor - under Po=0.5Watt –Decrease output power in DVDP TO220 8DIP package –Adaptor to Built In(IP Board) in LCD Monitor TO220 I2PAK D2PAK FSC Solution –DVDP : FSDX01/02/0365RN –Set top Box :FSDX0365RN, FSDM0565R, FSCM07652R –LCD Monitor : FSDX0365RN, FSDM05/07652R
Built in Start up circuit using BCDMOS high-voltage regulator - Saves power loss caused by start resistor Built in Soft start - Reduces transformer stress when start up Frequency Modulation function - 100kHz±3kHz, 67kHz±2kHz, 50kHz ±1.5kHz - Improves EMI performance - Saves filter component cost New 8DIP Package - Provides all features with much more safety spacing Auto burst mode operation - Provides very low stand by power consumption - Under Improved reliability through various Protection functions - Over voltage, Over current, Over load and Thermal shut down Programmable pulse by pulse current limit - Reduces transformer size FSDX0365RN / FSDX0265RN FSDL0165RN / FSDX321
Built in Start up circuit using by BCDMOS controller - Can remove start up resistor - Can save power loss caused by start resistor Built in Soft start - Can reduce transformer stress when start up - Much smaller transformer can be applied Frequency Modulation function - Improve EMI performance - Can save the components cost related EMI New 8DIP Package - Provide much more pin safety from dusty particles Auto burst mode operation - Can reduce switching loss when light load condition - Provide very low stand by power consumption Ipeak Control - Can control input power with accuracy - Provide more reliability What is New ?
Current PKG New PKG All high voltage pins will be located at upper side for wide creepage Drain GND Vcc FB Drain Drain Drain Soft Start GND Vcc FB Ipk Drain Drain Drain Start up New PKG Pin Configuration
Built-in Start up With High voltage J-FET Burst Block EMI reduction Block Current Limit Block Soft Start Multi Protection OLP OVP TSD Current Mode Control Block Diagram of FSDM0365RN
Input voltage (output power) 100Vac (0W) 85Vac (0.3W) 264Vac (0W) 264Vac (0.3W) FSDM0365RN0.05W0.52W0.12W0.58W FSDM0265RN0.035W0.53W0.11W0.62W Output Condition : 5V(0mA, 60mA) Pi & Po=0.5W(5V/100mA) Burst Operation & Power Loss
Application Schematic with FSDM0365RN
Device FunctionProtection Option PKG Vdmax (V) Ipeak (A) Pin(max) (1) VAC Fopr (KHz) Rds(on) Max ( ) OLPOCLOVPTSD KA5x0280R /707.0YES TO-220F-4L KA5x0365R /70/504.5YES TO-220F-4L KA5x0380R /70/507.0YES TO-220F-4L KA5M0765RQC YES TO-220-5L KA5M0965Q YES TO-3P-5L FS6M12653RTC YES TO-220F-5L FSDx321(L) /5019.0YES 8DIP(8LSOP) FSDL0165RN(L) YES 8DIP(8LSOP) FSDx0265RN(L) /706.0YES 8DIP(8LSOP) FSDx0365RN(L) /504.5YES 8DIP(8LSOP) FSDM0565RB YES TO-220F-6L FSDM07652RB YES TO-220F-6L Protection Option – OLP(Over Load Protection), OCL(Over Current Latch), OVP(Over Voltage Protection), TSD(Thermal Shutdown) (1) Open Frame Pin(max) Test Condition : Flyback Converter, Discontinuous Current Mode, Dmax=0.5, Vin(dc)=100V Green FPS TM in blue Selection Guide for DVDP/STB/LCD Monitor
Generation FSDx0365RN FSDx0265RN ICE*** Voltage Rating650V (2chip VDMOS)650V (2chip CoolMOS) PKG 8DIP Wide Creepage 8DIP/7DIP Wide Creepage Peak Current Sensing Internal Sensing by SenseFET - Adjustable Accurate Control by reducing stray inductance External Sensing Resistor Standby Power Consumption Under Burst Mode Operation Under (Frequency Reduction) Switching Frequency Fixed Frequency (100/67/50KHz) Frequency Modulation ( 2KHz) Low EMI Fixed Frequency (100/67KHz) Features Built-in Start up Built-in Soft Start Thermal Shutdown with hysteresis Start up Resistor Soft Start Capacitor Thermal Shutdown Comparison Table - FPS TM vs. Cool***
Even though ICE2B265 has a low Rds(on) CoolMOS, it’s temperature is much higher than FPS TM because CoolMOS has high Coss switching loss. Why the temperature of FSDM0365RN is higher than FSDL0365RN is that Coss loss(Pcoss=0.5*Coss*Vds 2 *Fosc) grows with the increase of switching frequency (Fosc) ModeInput voltage [VAC]Pin [W]Remarks Power on Play Play->Disc skip Stop(Motor brake)8516.5Peak power Peak power V IN(AC) =85 [V]V IN(AC) =265 [V]Fosc, Rds(on) I**********54 [°C]81 [°C]67KHz, 0.9ohm FSDL0265RN60 [°C]73 [°C]50KHz, 5.0ohm FSDL0365RN52 [°C]64 [°C]50KHz, 3.6ohm FSDM0365RN52 [°C]75 [°C]67KHz, 3.6ohm Temperature Comparison in DVDP
GenerationFSDL0165RNT****** Voltage Rating 650V (2chip VDMOS) 100% Avalanche rugged MOSFET 700V (1chip LDMOS) Controller Type Current Mode High Line & Load Regulation Voltage Mode PKG 8DIP Wide Creepage 7DIP Wide Creepage Standby Power Consumption Under 0.1W Burst Mode Operation Under 0.1W (with bias winding) Switching Frequency Fixed Frequency (50KHz) Frequency Modulation ( 1.5KHz) Low EMI Fixed Frequency (132KHz) Frequency Jittering ( 4KHz) Low EMI Features Built-in Start up Internal Soft Start Adjustable Peak Current Limit Thermal Shutdown with hysteresis Built-in Start up No Bias Winding Thermal Shutdown with hysteresis Comparison Table - FPS TM vs. competitor