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Absolute Maximum Ratings
Symbol
V
DD
I
OVP
V
FB
V
SEN
P
D
ESD
Parameter
Supply voltage Pin Voltage
VDD OVP maximal enter current
Input Voltage to FB Pin
Input Voltage to SEN Pin
Power Dissipation
ESD Capability, HBM Model
ESD Capability, Machine Model
Lead Temperature
(Soldering)
20second:
SOT-23-6L
10second:
DIP-8
10second:
SOP-8
Rating
40
20
-0.3 to 6V
-0.3 to 6V
300
2500
250
220
260
℃
230
-55 to + 150
℃
Unit
V
mA
V
V
mW
V
V
℃
T
L
T
STG
Storage Temperature Range
RECOMMENDED OPERATION CONDITION
Symbol
VDD
RI
T
OA
P
O
F
PWM
Parameter
VDD Supply Voltage
RI PIN Resistor Value
Operation Ambient Temperature
Output Power
Frequency of PWM
Min ~ Max
11~20
65~130
-20~85
0~80
30~150
Unit
V
K ohm
℃
W
KHz
Electrical Characteristics
(Ta=25°C unless otherwise noted, V
DD
= 15V.)
Symbol
I
ST
I
SS
VDD
ON
VDD
OFF
VD
CLAMP
VDD
AIS
T
SS
T
OFF
T
RESTART
I
FB
V
FB
I
FB_0D
I
PFM
I
CRM
V
PFM
V
CRM
I
OLP&SCP
V
OLP&SCP
T
OLP&SCP
V
TH_L
V
TH_H
T
PD
R
CS
V
SCP
T
SCP
F
OSC
DS-RS2051-02
Parameter
Startup Current
Operating Current
Turn-on Threshold Voltage
Turn-off Threshold Voltage
VDD Clamp Voltage
Anti Intermission Surge
VDD Voltage
Soft start Time
Over temperature Protection
Temperature restart
V
FB
=0V
V
FB
=3V
V
FB
=Open
I
VDD
=20mA
Conditions
Min.
Supply Voltage (V
DD
Pin)
Typ.
1.5
3.2
2.2
1.65
12.8
7.8
25.6
12.7
1.2
130
100
1.57
4.6
1.47
1.37
1.45
0.51
0.30
152
4.2
50
0.65
0.85
150
50
177
1.2
60
65
Max.
Unit
μA
mA
mA
mA
V
V
V
V
mS
℃
℃
mA
V
mA
mA
mA
V
V
uA
V
mS
V
V
ns
KΩ
mV
mS
KHz
www.Orister.com
Voltage Feedback (FB Pin)
Short Circuit Current
V
FB
=0V
Open Loop Voltage
V
FB
=Open
Zero Duty Cycle FB current
Enter PFM&PWM, FB current
Enter CRM, FB current
PFM Threshold V
FB
Enter CRM Threshold V
FB
Enter OLP&SCP FB current
Enter OLP&SCP FB voltage
OLP&SCP min. delay Time
RI=100K
33
Current Sensing (SEN Pin)
Minimum Voltage Lever
Maximum Voltage Lever
Delay to Output
Input Impedance
Sense short protect voltage
Sen. short protect Delay Time
Oscillator (RI Pin)
Normal Frequency
RI=100Kohm
55
September, 2007
ORISTER [ ORISTER CORPORATION ]
