首页 > 产品中心| Primary 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) | Green | Typ. | ||||
| US1651 |
PRIMARY-SIDE REGULATION PWM POWER SWITCH * Programmable CV and CC regulation * Primary-side sensing and regulation with No TL431 and opto-coupler * Adjustable constant current and output power setting * Built-in leading edge blanking (LEB) * VDD under voltage lockout * Cycle-by-Cycle current limiting * Auto-restart in over voltage condition |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 650V | 33V | 15.0V | 8.5V | 0.82V | - | - | SOP-8 | |
| 12Ω | 5uA | 22KHz | 50KHz | ||||||||
| USR1652 |
PRIMARY-SIDE REGULATION PWM POWER SWITCH * Programmable CV and CC regulation * Primary-side sensing and regulation with No TL431 and opto-coupler * Adjustable constant current and output power setting * Built-in leading edge blanking (LEB) * VDD under voltage lockout * Cycle-by-Cycle current limiting * Auto-restart in over voltage condition |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 650V | 33V | 15.0V | 8.5V | 0.82V | - | - | DIP-8 | |
| 6Ω | 5uA | 22KHz | 50KHz | ||||||||
| US1653 | High Precision CC/CV Primary-Side PWM Power Switch |
Flyback Converters, Hopping Technology,Build-in MOSFET CC/CV, PFM, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. |
650V | 33V | 15.0V | 8.5V | 0.82V | 10W | Min.→CCM→DCM | DIP-8 SOP-8 | |
| 5.0Ω | 5uA | Burst→12KHz→50KHz | |||||||||
| US2351 |
HIGH PRECISION LOW COST MCM POWER SWITCH * Power on soft-start * Built-in error amplifier * Built-in Leading Edge Blanking (LEB) * Cycle-by-Cycle current limiting * Over loading protection * Output short-circuit protection * VDD Under Voltage Lockout with hysteresis (UVLO) * VDD OVP |
Flyback Converters, Hopping Technology,Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. |
600V | 40V | 13.5V | 7.8V | 0.94V | - | - | SOP-8 | |
| 15.0Ω | 5uA | - | 60KHz | ||||||||
| US2651 |
HIGH PRECISION LOW COST MCM POWER SWITCH * Power on soft-start * Built-in error amplifier * Built-in Leading Edge Blanking (LEB) * Cycle-by-Cycle current limiting * Over loading protection * Output short-circuit protection * VDD Under Voltage Lockout with hysteresis (UVLO) * VDD OVP |
Flyback Converters, Hopping Technology,Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. |
600V | 40V | 13.0V | 8.0V | 0.86V | - | - | DIP-8 SOP-8 | |
| 15.0Ω | 35uA | - | 50KHz | ||||||||
| US2652SQ |
LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS * Proprietary frequency hopping for Improved EMI performance * Low standby power with only 30~70mw * Cycle-by-cycle current limiting * CCM/Valley Switching Operation * Fixed switch frequency 65~85kHz * Dynamic peak current limiting for constant output power * Built-in synchronized slope compensation * Gate output voltage clamped at 16V * Adjustable DC output OVP * OLP/VCC OVP/OTP/BNO/LNO ( automatic recovery) * Internal Soft Start * Halogen Free |
Flyback Converters, Hopping Technology,Build-in MOSFET And build in OVP, OTP, OCP, OLP, UVLO, SCP, LEB, Soft Start Etc. |
650V | 28V | 18.0V | 7.0V | 1.0V | - | - | DIP-7A | |
| 6.0Ω | 3.5uA | - | 65KHz | ||||||||
| US3651 |
High Precision CC/CV Primary-Side PWM Power Switch * Built-in 600V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Hopping Technology,Build-in MOSFET CC/CV, PFM, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. |
600V | 30V | 14.5V | 9.0V | 0.76V | 5W | Min.→CCM→DCM | DIP-8 SOP-8 | |
| 15Ω | 5uA | 370Hz→13KHz→55KHz | |||||||||
| US3651A |
High Precision CC/CV Primary-Side PWM Power Switch * Built-in 650V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Hopping Technology,Build-in MOSFET CC/CV, PFM, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. |
650V | 28V | 14.5V | 9.0V | 0.80V | 5W | Min.→CCM→DCM | DIP-8 SOP-8 | |
| 15.0Ω | 5uA | 370Hz→17KHz→65KHz | |||||||||
| US3652 |
High Precision CC/CV Primary-Side PWM Power Switch * Built-in 600V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Hopping Technology,Build-in MOSFET CC/CV, PFM, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. |
600V | 28V | 14.5V | 9.0V | 0.76V | 15W | Min.→CCM→DCM | DIP-8 | |
| 4.0Ω | 5uA | 300Hz→17KHz→65KHz | |||||||||
| USR3651 |
* Built-in 650V Power MOSFET * ±5% constant voltage regulation at universal AC input * High precision constant current regulation at universal AC input * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Frequency hopping to reduce system EMI * Built-in leading edge blanking * Built-in primary winding inductance compensation * Power on soft start * Gate Output Maximum Voltage Clamped at 15V * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Hopping Technology,Build-in MOSFET CC/CV, PFM, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. |
650V | 28V | 14.5V | 9.0V | 0.91V | 5W | Min.→CCM→DCM | SOP-8 | |
| 7.5Ω | 5uA | 370Hz→17KHz→65KHz | |||||||||
| USR3651S |
High Precision CC/CV Primary-Side PWM Power Switch * High Voltage startup circuit * Built-in 600V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 600V | 28V | 14.5V | 9.0V | 0.90V | 5W | - | DIP-8 SOP-8 | |
| 15.0Ω | 700uA | 300Hz→17KHz→65KHz | |||||||||
| USR3652 |
HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH * Built-in 650V Power MOSFET * ±5% constant voltage regulation at universal AC input * High precision constant current regulation at universal AC input * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Frequency hopping to reduce system EMI * Built-in leading edge blanking * Built-in primary winding inductance compensation * Power on soft start * Gate Output Maximum Voltage Clamped at 15V * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 650V | 28V | 14.5V | 9.0V | 0.90V | 12W | Min.→CCM→DCM | SOP-8 | |
|
5.0Ω (TYP) |
700uA | 370Hz→17KHz→65KHz | |||||||||
| USR3652S |
High Precision CC/CV Primary-Side PWM Power Switch * High Voltage startup circuit * Built-in 650V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 650V | 28V | 14.5V | 9.0V | 0.90V | 12W | Min.→CCM→DCM | DIP-8 | |
|
5.0Ω (TYP) |
700uA | 370Hz→17KHz→65KHz | |||||||||
| USRB01 |
High Precision CC/CV Primary-Side PWM Power Switch * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Flyback topology in DCM operation * Built-in power NPN * Built-in leading edge blanking * Open circuit protection * Output over voltage protection * VDD over voltage protection * Short circuit protection * Over temperature protection |
Flyback Converters, Build-in BJT CC/CV, PFM, And build in OVP, OLP, UVLO, OCP, SCP, LEB Etc. | 450V | 30V | 12.5V | 6.8V | 0.50V | - | - | SOP-8 | |
| - | 1uA | - | |||||||||
| USRB01A |
High Precision CC/CV Primary-Side PWM Power Switch * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Flyback topology in DCM operation * Built-in power NPN * Built-in leading edge blanking * Open circuit protection * Output over voltage protection * VDD over voltage protection * Short circuit protection * Over temperature protection |
Flyback Converters, Build-in BJT CC/CV, PFM, And build in OVP, OLP, UVLO, OCP, SCP, LEB Etc. | 450V | 30V | 12.5V | 6.8V | 0.50V | - | - | SOP-8 | |
| - | 1uA | - | |||||||||
| USRB02 |
High Precision CC/CV Primary-Side PWM Power Switch * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Flyback topology in DCM operation * Built-in power NPN * Built-in leading edge blanking * Audio noise free operation * Open circuit protection * Output over voltage protection * VDD over voltage protection * Short circuit protection * Over temperature protection |
Flyback Converters, Build-in BJT CC/CV, PFM, And build in OVP, OLP, UVLO, OCP, SCP, LEB Etc. | 450V | 30V | 19.4V | 7.1V | 0.555V | - | - | SOP-8 | |
| - | 5uA | - | |||||||||
| USRB04 |
HIGH PRECISION PRECISION LOW POWER SWITCH * Universal AC input range and 5.0V output voltage * Constant power mode operation at over load application * Low cost and less BOM for buck and buck-boost applications * 40kHz (typical) maximum switching frequency * Frequency shuffling for EMI improvement * Power on soft-start * Built-in Leading Edge Blanking(LEB) * Cycle-by-cycle current limiting * FB pin open loop protection * Output short-circuit protection * VDD Under Voltage Lockout with Hysteresis * VDD OVP * On-Chip OTP * LED Lighting System |
Build-in BJT , And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft-Start Etc. | 450V | 20V | 3.7 | 11.5 | 0.575V | - | - | SOP-8 | |
| - | 10uA | - | |||||||||
| UCSR3654 |
High Precision CC/CV Primary-Side PWM Power Switch * High Voltage startup circuit * Built-in 650V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 650V | 28V | 14.5V | 9.0V | 0.90V | 12W | Min.→CCM→DCM | DIP-8 SOP-8 | |
| 1.6Ω | 5uA | 300Hz→17KHz→65KHz | |||||||||
| UCSR3602S |
High Precision CC/CV Primary-Side PWM Power Switch * High voltage startup circuit * Built-in 600V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 600V | 28V | 14.5V | 9.0V | 0.90V | 12W | Min.→CCM→DCM | DIP-7A | |
| 2.4Ω | 700uA | 300Hz→17KHz→65KHz | |||||||||
| UCSR3651S |
High Precision CC/CV Primary-Side PWM Power Switch * High Voltage startup circuit * Built-in 650V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 650V | 28V | 14.5V | 9.0V | 0.90V | 8W | Min.→CCM→DCM | DIP-7A SOP-8 | |
| 3Ω | 700uA | 300Hz→17KHz→65KHz | |||||||||
| UCSR3652S |
High Precision CC/CV Primary-Side PWM Power Switch * High voltage startup circuit * Built-in 650V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 650V | 28V | 14.5V | 9.0V | 0.90V | 12W | Min.→CCM→DCM | DIP-7A SOP-8 DIP-8 | |
| 2.4Ω | 700uA | 300Hz→17KHz→65KHz | |||||||||
| UCSR3654S |
High Precision CC/CV Primary-Side PWM Power Switch * High Voltage startup circuit * Built-in 650V Power MOSFET * Primary side control without TL431 and opto-coupler * Programmable CV and CC regulation * Programmable cable compensation in CV mode * Flyback topology in DCM operation * Built-in leading edge blanking * Power on soft start * Cycle-by-cycle current limiting * Over voltage protection * VDD under-voltage lockout |
Flyback Converters, Build-in MOSFET CC/CV, And build in OVP, OLP, UVLO, OCP, SCP, LEB, Soft Start Etc. | 650V | 28V | 14.5V | 9.0V | 0.90V | 15W | Min.→CCM→DCM | DIP-7A DIP-8 | |
| 1.6Ω | 700uA | 300Hz→17KHz→65KHz | |||||||||
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