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PT4204 Dataheets PDF



Part Number PT4204
Manufacturers PowTech
Logo PowTech
Description Primary Side CC Regulator
Datasheet PT4204 DatasheetPT4204 Datasheet (PDF)

PT4204 Primary Side CC Regulator for LED driver DESCRIPTION: PT4204 is targeted to sub-5W LED lighting applications. It is designed for the flyback topology, and regulates output current without the secondary feedback loop. A 600V power switch is integrated into PT4204 witch is helpful for reducing the circuit board dimension and system total cost. Accurate CC (constant current) regulation can be achieved with built in compensation circuitry. Integrated line and primary inductance compensation e.

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PT4204 Primary Side CC Regulator for LED driver DESCRIPTION: PT4204 is targeted to sub-5W LED lighting applications. It is designed for the flyback topology, and regulates output current without the secondary feedback loop. A 600V power switch is integrated into PT4204 witch is helpful for reducing the circuit board dimension and system total cost. Accurate CC (constant current) regulation can be achieved with built in compensation circuitry. Integrated line and primary inductance compensation ensures output current free of line voltage and primary inductance variations. Complete protection functions have been integrated allows PT4204 to protect against all fault conditions including cycle by cycle current limit, output open/short circuit, line under-voltage, and over temperature shut down. PT4204 is available in SOP-8 package. FEATURES z z z z z z z z z CC Control Without Secondary Feed back Compensates transformer Inductor Variation Built in 600V power switch Output Over Voltage Protection Output Short Circuit Protection Feedback resistor open circuit protection Line Under Voltage Protection Cycle by Cycle Current Limit Over Temperature Protection APPLICATIONS z 1~5W LED Power Supplier ORDERING INFORMATION PACKAGE SOP8 Note: xxxxxX Assembly Factory Code w VÛm `R•yÑb € TEMPERATURE RANGE -40℃ to 85℃ ORDERING PART NUMBER PT 4204ESOH TRANSPORT MEDIA Tape and Reel MARKING PT4204 xxxxxX Lot Number TYPICAL APPLICATION CIRCUIT of w.g ww otec h.co m HV DC INP LED+ LED- START DRAIN VCC GND FB () PT4204_DSB Ver. EN0.1 1 PT4204 Primary Side CC Regulator for LED driver PIN ASSIGNMENT PIN DESCRIPTIONS NO. 1 2 3 4 5,6 7,8 PIN NAME NC START VCC FB GND DRAIN DESCRIPTION No connection Start up control pin, must be locally bypassed DC power supply pin, must be locally bypassed Feedback Winding Voltage Sense Input Ground Internal 600V switch drain ABSOLUTE MAXIMUM RATINGS (note 1, 2, 3) SYMBOL VCC START FB DRAIN PDMAX PTR1 TJ TSTG HBM PARAMETER VALUE -0.3~6 -0.3~15 -0.3~6 -0.3~600 0.43 150 -40 to 150 -55 to 150 2 o UNIT V V V V W C /W o o VCC Supply Voltage START input voltage FB input range DRAIN maximum reverse voltage Power dissipation (note2) Heat resistance R θJA Junction temperature w VÛm `R•yÑb € C C Storage temperature ESD sensitivity level(note3) of w.g ww otec m h.co kV RECOMMENDED OPERATING RANGE SYMBOL VCC TOPT PARAMETER Power supply voltage Operating ambient temperature VALUE 5.5 -20 to +85 UNIT V o C Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Recommended Operating Range indicates conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Range. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication of device performance. Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature TA. The maximum allowable power dissipation is PDMAX = (TJMAX - TA)/ θJA or the number given in Absolute Maximum Ratings, whichever is lower. Note 3: Human body model, 100pF discharged through a 1.5kΩ resistor. () PT4204_DSB Ver. EN0.1 2 PT4204 Primary Side CC Regulator for LED driver ELECTRICAL CHARACTERISTICS (TOPT=25℃, VCC=5.5V,unless specified otherwise) SYMBOL PARAMETER TEST CONDITION MIN TYP MAX UNIT VCC Supply and Start up (VCC andSTART) VSTART_ON VSTART_OFF VSTART_CLMP VCC VCC_CLMP VCC_UVLO ICH START on threshold START off threshold START clamp voltage VCC operating voltage VCC clamp voltage VCC UVLO threshold VCC charge current I(VCC)=5mA VCC falling VCC=0V,VDRAIN=20V 4.0 -7.5 START rising START falling I(VSTART)=5mA 9 5.5 11.5 11 7.5 13 6 6.5 4.5 -5 5 -2.5 13 9.5 14.5 V V V V V V mA Feedback(FB) VFBMAX VFBMIN IFB_OPEN FB over voltage threshold FB minimum voltage FB open loop protection threshold 2.25 2.5 0.50 -120 2.75 V V uA OSCILLATOR FB=2.25V, Fosc DMAX Oscillator frequency w VÛm `R•yÑb € IFB×Ton=1.5mA*uS note(4) 60 65 60 70 kHz % Maximum duty cycle otec h.co m Driver output(DRAIN) of w.g ww RDS(ON) IDS BVDS TLEB Protection ILIMIT TSD TSDHYS TAR_ON On state resistance Off state leak current DRAIN breakdown voltage Current sense leading edge blanking time VSTART=12V IDRAIN=410mA VSTART=0,VDS=600V , 8 15 25 Ω uA V VSTART=0,IDRAIN=250uA 600 300 ns SW peak current Over temperature shut down threshold Over temperature shut down hysterises Fault condition restart time di/dt=100 mA/us 381 410 150 50 4 438 mA ℃ ℃ S Note 4:including±7% jittering () PT4204_DSB Ver. EN0.1 3 PT4204 Primary Side CC Regulator for LED driver SIMPLIFIED BLOCK DIAGRAM w VÛm `R•yÑb € of w.g ww otec h.co m () PT4204_DSB Ver. EN0.1 4 PT4204 Primary Side CC .


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