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PT4219 Datasheet Preview

PT4219 Datasheet

Primary Side Offline LED Controller

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PT4219
Primary Side Offline
LED Controller with Active PFC
GENERAL DESCRIPTION
The PT4219 is a primary side constant current
controller which can achieve high power factor in a
single stage converter, targeted to applications in solid
state lighting. It is designed for the flyback topology,
and regulates output current accurately without the
secondary feedback loop.
PT4219 works in quasi-resonant mode to reduce the
MOSFET switching loss. The device uses extremely
low startup and low quiescent current to achieve high
efficiency.
A complete set of integrated protection functions allows
the PT4219 to protect against all fault conditions such
as VCC under-voltage, VCC over-voltage, cycle by
cycle current limit, output open/short circuit, Rcs open
circuit, transformer winding short circuit and over
temperature shut down.
The PT4219 is available in SOP8 package.
FEATURES
Constant Current Control Without Secondary Feed
back
Accurate Constant Current Output
Quasi-Resonant Mode Operation
Ultra-low10uAStart Up Current
Low Quiescent Current (1mA)
VCC Under Voltage Protection
Over Voltage Protection by Voltage Holding
Cycle by Cycle Current Limit
Rcs Open Circuit Protection
Transformer Winding Short Circuit Protection
Output Open/Short Circuit Protection
Over Temperature Protection
APPLICATIONS
Solid State Lighting
Industrial and Commercial Lighting
Residential Lighting
ORDERING INFORMATION
PACKAGE
SOP-8
TEMPERATURE
ORDERING PART NUMBER
RANGE
-40to 85
PT4219ESOH
TRANSPORT
MEDIA
3000/Tape and Reel
TYPICAL APPLICATION CIRCUIT
MARKING
PT4219
xxxxxX
AC
85~264V
Rst
R11
C1 R12
D1
R3
C3
R4
VCC
VINS
COMP
GND
DET
NC
DRV
CS
R2 C2
D2
Rcs
D3
C4 R6
China Resources Powtech (shanghai) Co. Ltd
PT4219_DS Rev EN1.0
WWW.CRPOWTECH.COM
Page 1




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PT4219 Datasheet Preview

PT4219 Datasheet

Primary Side Offline LED Controller

No Preview Available !

PIN ASSIGNMENT
PT4219
Primary Side Offline
LED Controller with Active PFC
VINS 1
DET 2
VCC 3
DRV 4
SOP-8
8 COMP
7 NC
6 GND
5 CS
PIN DESCRIPTIONS
PIN No.
1
2
3
4
5
6
7
8
PIN
NAMES
DESCRIPTION
VINS
DET
VCC
One of the input pin of the internal multiplier.
Auxiliary winding voltage sense pin to detect the moment of zero current of
secondary winding, and over voltage.
Power supply pin for all internal circuit.
DRV External MOSFET gate driver pin
CS Primary winding current sensing pin
GND Ground
NC Not connected
COMP Compensation pin for constant current control loop
ABSOLUTE MAXIMUM RATINGS (note1)
SYM
VCC
VvCC_Clamp
IvCC_Clamp
IDET_MAX
IDRV_MAX
VDRV
VCS
VI/O
TOPT
TSTG
JA
HBM
PARAMETER
VCC DC Supply Voltage
VCC Clamp Voltage
VCC DC Clamp Current
Max DET Pin Current
Max DRV Pin Current
DRV Pin Voltage Range
CS Pin Voltage Range
Other I/O PIN Input Voltage
Operating Temp. Range
Storage Temp. Range
SOP8
ESD Capability, HBMnote2
VALUE
30
31
10
-50-10
1.2
-0.3~31
-0.3~31
-0.3~7
-40 to 125
-55 to 150
184
2000
UNIT
V
V
mA
mA
A
V
V
V
/W
V
China Resources Powtech (shanghai) Co. Ltd
PT4219_DS Rev EN1.0
WWW.CRPOWTECH.COM
Page 2


Part Number PT4219
Description Primary Side Offline LED Controller
Maker PowTech
PDF Download

PT4219 Datasheet PDF






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