Secondary Side Regulation Green Mode PWM Power Switch  
Part No. Features Function BVDSS
(MIN.)
VCC(Max) UVLO (Typ.) CS O/P W MIN. FOSC Package
RDS(on)
(Max)
IST(Typ) VTH(ST) VOPR Typ.  (90V~265V)
Adaptor
Green Typ.
UPS0651* High Performance Current Mode Power Switch Flyback Converters,
Hopping Technology,Build-in MOSFET
Frequency BurstPFMPWM,
Program Gate Driver,Constant Power Limit Pin and OVP, OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start,Etc.
650V 32V 15.9V 9.7V 0.77V  5W Internal Fixed  DIP-8 TO-220F-6 
12.5Ω 5uA 22KHz 50KHz
UPS0702* High Performance Current Mode Power Switch Flyback Converters,
Hopping Technology,
Frequency BurstPWM
Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc.
700V 30V 15.0V 9.0V ILIM DIP-8
7W
Internal Fixed  DIP-8 TO-220F-4 TO-220F-6
6.3Ω 100uA 2.0A TO-220F-4
10W
- 67KHz
UPS0704* High Performance Current Mode Power Switch Flyback Converters,
Hopping Technology,
Frequency BurstPFMPWM,
Build-in MOSFET With OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start,Etc.
700V 30V 14.2V 8.2V 0.86V  15W Internal Fixed  DIP-8 TO-220F-6
3.1Ω 22uA 20KHz 68KHz
UPS1702* High Performance Current Mode Power Switch Flyback Converters,
Hopping Technology, Internal HV Start
Up Frequency BurstPWM
Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc.
700V 30V 14.2V 8.2V ILIM 10W Internal Fixed  DIP-8 TO-220F-6 
6.3Ω 22uA 2.0A - 60KHz
UPS2652* High Performance Current Mode Power Switch Flyback Converters,
Hopping Technology,Internal HV Start, Build-in MOSFET, Frequency BurstPFMPWM, Constant Power Limit Pin and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start,Etc.
650V 30V 14.2V 8.2V 0.86V  10W Internal Fixed  DIP-8 TO-220F-6
5.0Ω 22uA 20KHz 68KHz
US1602* High Performance Current Mode Power Switch Flyback Converters,
Hopping Technology,Build-in MOSFET
Frequency BurstPFMPWM, Program Gate Driver, Support No Y-cap. And
OVP , OLP, UVLO, OCP, SCP, LEB, OTP,Soft Start,Constant Power Limit Etc.
650V 30V 14.2V 8.2V 0.95V  10W Internal Fixed  DIP-8 TO-220F-6 
5.0Ω 22uA 20KHz 50KHz
UPS3702* High Performance Current Mode Power Switch Flyback Converters,
Hopping Technology,
Frequency BurstPFMPWM
Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc.
700V 21V 12.0V 8.0V ILIM 10W Internal Fixed  DIP-8 TO-220F-6 
6.3Ω 6uA 2.0A 22KHz 75KHz
UCS1602S High Performance Current Mode Power Switch

* Internal Power MOSFET (600V)
* Programming Gate Driver Capability
* Internal Soft Start
* Gate Output Maximum Voltage Clamp(16V)
* Over Temperature Protection
* Over Load Protection
* Over Voltage Protection
* Leading Edge Blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 600V 24V 20.0V 8.0V 0.79V(Typ.) 17W Internal Fixed  DIP-8 SOP-8
2.5Ω 2uA 20KHz 65KHz
UCS1603S High Performance Current Mode Power Switch

* Internal Power MOSFET (600V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Over load protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 600V 24V 20.0V 8.0V 0.79V(Typ.) 18W Internal Fixed  DIP-8
2.0Ω 2uA 20KHz 65KHz
UCS1604S High Performance Current Mode Power Switch

* Internal Power MOSFET (600V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Over load protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 600V 24V 20.0V 8.0V 0.79V(Typ.) 22W Internal Fixed  DIP-8
1.5Ω 2uA 20KHz 65KHz
UCS1605S High Performance Current Mode Power Switch

* Internal Power MOSFET (600V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Over load protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 600V 24V 20.0V 8.0V 0.79V(Typ.) 28W Internal Fixed  DIP-8
1.0Ω 2uA 20KHz 65KHz
UCS1652S High Performance Current Mode Power Switch

* Internal Power MOSFET (650V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Overload protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 650V 24V 20.0V 8.0V 0.79V(Typ.) 18W Internal Fixed  DIP-7A DIP-8 SOP-8
2.5Ω 2uA 20KHz 65KHz
UCS1653S High Performance Current Mode Power Switch

* Internal Power MOSFET (650V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Overload protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 650V 24V 20.0V 8.0V 0.79V(Typ.) 22W Internal Fixed  DIP-7A DIP-8 
2.0Ω 2uA 20KHz 65KHz
UCS1654S High Performance Current Mode Power Switch

* Internal Power MOSFET (650V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Overload protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 650V 24V 20.0V 8.0V 0.79V(Typ.) 26W Internal Fixed  DIP-7A DIP-8 
1.5Ω 2uA 20KHz 65KHz
UCS1655S High Performance Current Mode Power Switch

* Internal Power MOSFET (650V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Overload protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 650V 24V 20.0V 8.0V ILIM 30W Internal Fixed  DIP-7A DIP-8
1.3Ω 2uA 5.0A 20KHz 65KHz
UCS1657S High Performance Current Mode Power Switch

* Internal Power MOSFET (650V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp (16V)
* Over temperature protection
* Overload protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 650V 24V 20.0V 8.0V 0.79V(Typ.) - Internal Fixed  TO-220F-6
0.6Ω 2uA 20KHz 65KHz
UCS1702S High Performance Current Mode Power Switch

* Internal Power MOSFET (700V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Over load protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 700V 24V 20.0V 8.0V 0.79V(Typ.) - Internal Fixed  DIP-7A DIP-8 SOP-8
2.5Ω 2uA 20KHz 65KHz
UCS1703S High Performance Current Mode Power Switch

* Internal Power MOSFET (700V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Over load protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 700V 24V 20.0V 8.0V 0.79V(Typ.) - Internal Fixed  DIP-7A DIP-8 SOP-8
2.0Ω 2uA 20KHz 65KHz
UCS1704S High Performance Current Mode Power Switch

* Internal Power MOSFET (700V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Over load protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 700V 24V 20.0V 8.0V 0.79V(Typ.) - Internal Fixed  DIP-7A DIP-8 SOP-8
1.5Ω 2uA 20KHz 65KHz
UCS1705S High Performance Current Mode Power Switch

* Internal Power MOSFET (700V)
* Programming Gate Driver Capability
* Internal Soft start
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Over load protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out
Flyback Converters, Build-in MOSFET With Sense MOS, and OVP , OLP, UVLO, OCP, SCP, LEB, OTP, Soft Start, Etc. 700V 24V 20.0V 8.0V 0.79V(Typ.) - Internal Fixed  DIP-7A DIP-8
1.0Ω 2uA 20KHz 65KHz
*: Under  Development