WS2268
Recommended Condition
Parameter
Supply voltage（VP）
Operating temperature
Value
10~30
-20~85
Unit
V
℃
Absolute Maximum Ratings(Note 1)
Parameter
Supply voltage（VP）
Feedback voltage（U）
others（IP, G, PCC, CDC）
Output current at G
Power dissipation at Ta=25℃
Operating junction temperature
Storage temperature
Thermal resistance junction-to-ambient
30
-40~10
-0.3~7
Internally limited
0.657
150
-65~150
190
Value
Unit
V
V
V
A
W
℃
℃
℃/W
Note 1：
Stresses greater than those listed under “Absolute Maximum Rating” may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended
operating conditions” is not implied. Exposure to “Absolute Maximum Rating” for extended periods may affect device reliability.
Electrical Characteristics (Tc = 25°C)
Parameter
Start-up section
Start-up threshold
UVLO threshold
Start-up current
Operating current
Vstu
Vlo
Istart
I
IS
VP=Vstu-0.5V
Static
18
7
20
9
3
600
22
11
5
900
V
V
uA
uA
Symbol
Conditions
Min
Typ
Max
Unit
Current sense section
IP compare threshold
Leading edge blanking
Vip
T
leb
475
500
500
525
mV
ns
Feedback section
Feedback threshold voltage
Input resistor
Over voltage protection
Open circuit protection vlotage
Vs&href
Ru
Vovp
Vockp
Dynamic
7
-1.2
4
350
8
-1
9
-0.8
V
KΩ
V
V
Drive output section
Output low voltage
Output high voltage
Output clamp
Rise time
Fall time
VOL
VOH
VClamp
Tr
Tf
CL = 1nf
CL = 1nf
Io = -20mA
Io = 20mA
8
19
200
70
0.8
V
V
V
ns
ns
3/8
Steady, keep for your advance
WINSEMI [ SHENZHEN WINSEMI MICROELECTRONICS CO., LTD ]
