UCC35702 Series
15V VCC, 1A Driver single ended 700KHz voltage mode PWM controller with 9.6V/8.8V UVLO, 0C to 70C
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Control Features | Mounting Type | Output Phases▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Function | Output Type | Frequency - Switching▲▼ | Duty Cycle (Max)▲▼ | Clock Sync▲▼ | Package / Case▲▼ | Package / Case▲▼ | Package / Case | Output Configuration | Number of Outputs▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Synchronous Rectifier▲▼ | Topology | Package / Case▲▼ | Package / Case▲▼ | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments UCC35702DBoost, Flyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-SOIC | Current Limit, Frequency Control, Sequencing, Soft Start | Surface Mount | 1 ul | 70 °C | 0 °C | Step-Up, Step-Up/Step-Down | Transistor Driver | 100000 Hz | 0.9900000095367432 ul | 0.003899999894201755 m | 0.003911599982529879 m | 14-SOIC | Isolation Capable, Positive | 1 ul | 8.800000190734863 V | 15 V | Boost, Flyback, Forward Converter | |||||
Texas Instruments UCC35702PWTRBoost, Flyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-TSSOP | Current Limit, Frequency Control, Sequencing, Soft Start | Surface Mount | 1 ul | 70 °C | 0 °C | Step-Up, Step-Up/Step-Down | Transistor Driver | 100000 Hz | 0.9900000095367432 ul | 14-TSSOP | Isolation Capable, Positive | 1 ul | 8.800000190734863 V | 15 V | Boost, Flyback, Forward Converter | 0.004394200164824724 m | 0.004399999976158142 m | 14-TSSOP | ||||
Texas Instruments UCC35702PWBoost, Flyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-TSSOP | Current Limit, Frequency Control, Sequencing, Soft Start | Surface Mount | 1 ul | 70 °C | 0 °C | Step-Up, Step-Up/Step-Down | Transistor Driver | 100000 Hz | 0.9900000095367432 ul | 14-TSSOP | Isolation Capable, Positive | 1 ul | 8.800000190734863 V | 15 V | Boost, Flyback, Forward Converter | 0.004394200164824724 m | 0.004399999976158142 m | 14-TSSOP |
Key Features
• 700kHz OperationIntegrated Oscillator/Voltage Feed Forward CompensationAccurate Duty Cycle LimitAccurate Volt-second ClampOptocoupler InterfaceFault Counting ShutdownFault Latch off or Automatic ShutdownSoft Stop Optimized for Synchronous Rectification1A Peak Gate Drive Output130µA Start-up Current750µA Operating Current700kHz OperationIntegrated Oscillator/Voltage Feed Forward CompensationAccurate Duty Cycle LimitAccurate Volt-second ClampOptocoupler InterfaceFault Counting ShutdownFault Latch off or Automatic ShutdownSoft Stop Optimized for Synchronous Rectification1A Peak Gate Drive Output130µA Start-up Current750µA Operating Current
Description
AI
The UCC35701/UCC35702 family of pulse width modulators is intended for isolated switching power supplies using primary side control. They can be used for both off-line applications and DC/DC converter designs such as in a distributed power system architecture or as a telecom power source.
The devices feature low startup current, allowing for efficient off-line starting, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.
Voltage feed forward compensation is operational over a 5:1 input range and provides fast and accurate response to input voltage changes over a 4:1 range. An accurate volt-second clamp and maximum duty cycle limit are also featured.
Fault protection is provided by pulse by pulse current limiting as well as the ability to latch off after a programmable number of repetitive faults has occurred.
Two UVLO options are offered. UCC35701 family has turn-on and turn-off thresholds of 13V/9V and UCC35702 family has thresholds of 9.6V/8.8V.
The UCC35701/2 and the UCC25701/2 are offered in the 14 pin SOIC (D), 14 pin PDIP (N) or in 14 pin TSSOP (PW) packages. The UCC15701/2 is offered in the 14 pin CDIP (J) package.
The UCC35701/UCC35702 family of pulse width modulators is intended for isolated switching power supplies using primary side control. They can be used for both off-line applications and DC/DC converter designs such as in a distributed power system architecture or as a telecom power source.
The devices feature low startup current, allowing for efficient off-line starting, yet have sufficient output drive to switch power MOSFETs in excess of 500kHz.
Voltage feed forward compensation is operational over a 5:1 input range and provides fast and accurate response to input voltage changes over a 4:1 range. An accurate volt-second clamp and maximum duty cycle limit are also featured.
Fault protection is provided by pulse by pulse current limiting as well as the ability to latch off after a programmable number of repetitive faults has occurred.
Two UVLO options are offered. UCC35701 family has turn-on and turn-off thresholds of 13V/9V and UCC35702 family has thresholds of 9.6V/8.8V.
The UCC35701/2 and the UCC25701/2 are offered in the 14 pin SOIC (D), 14 pin PDIP (N) or in 14 pin TSSOP (PW) packages. The UCC15701/2 is offered in the 14 pin CDIP (J) package.