pt4203 China Resources Powtech (Shanghai) Co., Ltd, pt4203 Datasheet - Page 2

• Manufacturer Part Number: pt4203
• Description: Primary Side Cc Regulator For Led Driver
• Manufacturer: China Resources Powtech (Shanghai) Co., Ltd

PIN ASSIGNMENT
ABSOLUTE MAXIMUM RATINGS (note 1,2,3)
RECOMMENDED OPERATING CONDITION
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 T
and the ambient temperature T
number given in Absolute Maximum Ratings, whichever is lower.
Note 3: Human body model, 100pF discharged through a 1.5kΩ resistor.
华润矽威科技(上海)有限公司
PT4203_DSB Ver. EN0.1
SYMBOL
SYMBOL
START
P
HBM
T
T
P
V
V
SW
DMAX
FB
T
OPT
TR1
STG
CC
CC
J
PARAMETER
supply voltage
Operating ambient temperature
PARAMETER
VCC supply voltage
START input voltage
SW output voltage
FB input voltage
Power dissipation (note 2)
Heat resistance R θ
Junction temperature
Storage temperature
ESD sensitivity level (note 3)
A
. The maximum allowable power dissipation is P
PIN DESCRIPTIONS
1
2
3
4
5
NO.
JA
WWW.CRPOWTECH.COM
Primary Side CC Regulator for LED driver
SW
GND
FB
VCC
START
NAME
PIN
Internal switch driver output， connects to the source
System ground
Feedback Winding Voltage Sense Input
DC power supply pin, must be locally bypassed
Start up control pin, connects to the gate of the
MOSFET, must be locally bypassed
of MOSFET
-40 to +85
-40 to 150
-55 to 150
VALUE
VALUE
-0.3~15
-0.3~30
-0.3~6
-0.3~6
0.27
5.5
DESCRIPTION
250
3
DMAX
= (T
JMAX
PT4203
UNIT
UNIT
o
C /W
o
V
kV
C
W
o
o
- T
V
V
V
V
C
C
A
)/ θ
JMAX
JA
第 2 页
or the
, θ
JA
,