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PT4204 Datasheet Preview

PT4204 Datasheet

Primary Side CC Regulator

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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 CC Control Without Secondary Feed back
z Compensates transformer Inductor Variation
z Built in 600V power switch
z Output Over Voltage Protection
z Output Short Circuit Protection
z Feedback resistor open circuit protection
z Line Under Voltage Protection
z Cycle by Cycle Current Limit
z Over Temperature Protection
APPLICATIONS
z 1~5W LED Power Supplier
ORDERING INFORMATION
PACKAGE
TEMPERATURE
ORDERING PART NUMBER
RANGE
SOP8
-40to 85
PT 4204ESOH
Note:
xxxxxX
Assembly Factory Code
Lot Number
TRANSPORT
MEDIA
Tape and Reel
MARKING
PT4204
xxxxxX
TYPICAL APPLICATION CIRCUIT
HV DC
INP
START DRAIN
VCC
FB
GND
LED+
LED-
华润矽威科技(上海)有限公司
PT4204_DSB Ver. EN0.1
第 1页




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PT4204 Datasheet Preview

PT4204 Datasheet

Primary Side CC Regulator

No Preview Available !

PIN ASSIGNMENT
PT4204
Primary Side CC Regulator for LED driver
PIN DESCRIPTIONS
NO.
PIN
NAME
DESCRIPTION
1 NC No connection
2 START Start up control pin, must be locally bypassed
3 VCC DC power supply pin, must be locally bypassed
4 FB Feedback Winding Voltage Sense Input
5,6 GND Ground
7,8 DRAIN Internal 600V switch drain
ABSOLUTE MAXIMUM RATINGS (note 1, 2, 3)
SYMBOL
VCC
START
FB
DRAIN
PDMAX
PTR1
TJ
TSTG
HBM
PARAMETER
VCC Supply Voltage
START input voltage
FB input range
DRAIN maximum reverse voltage
Power dissipation (note2)
Heat resistance R θJA
Junction temperature
Storage temperature
ESD sensitivity level(note3)
VALUE
-0.3~6
-0.3~15
-0.3~6
-0.3~600
0.43
150
-40 to 150
-55 to 150
2
UNIT
V
V
V
V
W
oC /W
oC
oC
kV
RECOMMENDED OPERATING RANGE
SYMBOL
VCC
TOPT
PARAMETER
Power supply voltage
Operating ambient temperature
VALUE
5.5
-20 to +85
UNIT
V
oC
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 1.5kresistor.
华润矽威科技(上海)有限公司
PT4204_DSB Ver. EN0.1
第 2页


Part Number PT4204
Description Primary Side CC Regulator
Maker PowTech
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PT4204 Datasheet PDF






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