Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | UCC2897PW | UCC2897 Series |
|---|---|---|
| Board Type | - | Fully Populated |
| Clock Sync | True | True |
| Control Features | On Time Control, Enable, Soft Start | On Time Control, Enable, Soft Start, Current Limit |
| Current - Output | - | 30 A |
| Duty Cycle (Max) [Max] | 74 % | 70 - 74 % |
| Frequency - Switching | 250 kHz | 250 kHz |
| Function | Step-Up/Step-Down | Step-Up/Step-Down |
| Main Purpose | - | DC/DC, Step Down |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Outputs | 1 | 1 |
| Operating Temperature [Max] | 105 °C | 105 - 125 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Output Configuration | Positive, Isolation Capable | Positive, Isolation Capable |
| Output Phases | 1 | 1 |
| Output Type | Transistor Driver | Transistor Driver |
| Outputs and Type | - | Isolated |
| Outputs and Type | - | 1 |
| Package / Case | 0.173 in | 0.173 in |
| Package / Case | 4.4 mm | 4.4 mm |
| Package / Case | 20-TSSOP | 20-TSSOP, 20-WFQFN Exposed Pad, 20-VFQFN Exposed Pad |
| Regulator Topology | - | Forward Converter |
| Supplied Contents | - | Board(s) |
| Supplier Device Package | 20-TSSOP | 20-TSSOP, 20-QFN (4x4) |
| Synchronous Rectifier | True | True |
| Topology | Flyback, Forward Converter | Flyback, Forward Converter |
| Utilized IC / Part | - | UCC2897A |
| Voltage - Input | - | 36 V |
| Voltage - Input | - | 72 V |
| Voltage - Output | - | 3.3 V |
| Voltage - Supply (Vcc/Vdd) [Max] | 14.5 V | 14.5 - 16 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 8.5 V | 8.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
UCC2897 Series
110-V active clamp current mode PWM controller with P-channel clamp FET and line OV protection
| Part | Control Features | Package / Case | Package / Case | Package / Case | Function | Output Configuration | Voltage - Supply (Vcc/Vdd) [Min] | Voltage - Supply (Vcc/Vdd) [Max] | Frequency - Switching | Operating Temperature [Max] | Operating Temperature [Min] | Topology | Supplier Device Package | Number of Outputs | Duty Cycle (Max) [Max] | Clock Sync | Output Phases | Synchronous Rectifier | Mounting Type | Output Type | Voltage - Input [Min] | Voltage - Input [Max] | Utilized IC / Part | Board Type | Supplied Contents | Regulator Topology | Voltage - Output | Main Purpose | Outputs and Type | Outputs and Type | Current - Output |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments UCC2897PWFlyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 20-TSSOP | Enable, On Time Control, Soft Start | 0.173 in | 4.4 mm | 20-TSSOP | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 14.5 V | 250 kHz | 105 °C | -40 °C | Flyback, Forward Converter | 20-TSSOP | 1 | 74 % | 1 | Surface Mount | Transistor Driver | |||||||||||||
Texas Instruments UCC2897PWG4Flyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 20-TSSOP | Enable, On Time Control, Soft Start | 0.173 in | 4.4 mm | 20-TSSOP | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 14.5 V | 250 kHz | 105 °C | -40 °C | Flyback, Forward Converter | 20-TSSOP | 1 | 74 % | 1 | Surface Mount | Transistor Driver | |||||||||||||
Texas Instruments UCC2897AEVMUCC2897A TrueDrive™ DC/DC, Step Down 1, Isolated Outputs Evaluation Board | 250 kHz | 36 V | 72 V | UCC2897A | Fully Populated | Board(s) | Forward Converter | 3.3 V | DC/DC, Step Down | Isolated | 1 | 30 A | |||||||||||||||||||
Texas Instruments UCC2897RTJRFlyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4) | Enable, On Time Control, Soft Start | 20-WFQFN Exposed Pad | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 14.5 V | 250 kHz | 105 °C | -40 °C | Flyback, Forward Converter | 20-QFN (4x4) | 1 | 74 % | 1 | Surface Mount | Transistor Driver | |||||||||||||||
Texas Instruments UCC2897APWThe UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.
The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages.
The UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.
The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages. | Current Limit, Enable, Soft Start | 0.173 in | 4.4 mm | 20-TSSOP | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 16 V | 250 kHz | 125 ¯C | -40 °C | Flyback, Forward Converter | 20-TSSOP | 1 | 70 % | 1 | Surface Mount | Transistor Driver | |||||||||||||
Texas Instruments UCC2897APWRThe UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.
The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages.
The UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.
The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages. | Current Limit, Enable, Soft Start | 0.173 in | 4.4 mm | 20-TSSOP | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 16 V | 250 kHz | 125 ¯C | -40 °C | Flyback, Forward Converter | 20-TSSOP | 1 | 70 % | 1 | Surface Mount | Transistor Driver | |||||||||||||
Texas Instruments UCC2897PWRG4Flyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 20-TSSOP | Enable, On Time Control, Soft Start | 0.173 in | 4.4 mm | 20-TSSOP | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 14.5 V | 250 kHz | 105 °C | -40 °C | Flyback, Forward Converter | 20-TSSOP | 1 | 74 % | 1 | Surface Mount | Transistor Driver | |||||||||||||
Texas Instruments UCC2897ARGPTThe UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.
The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages.
The UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.
The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages. | Current Limit, Enable, Soft Start | 20-VFQFN Exposed Pad | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 16 V | 250 kHz | 125 ¯C | -40 °C | Flyback, Forward Converter | 20-QFN (4x4) | 1 | 70 % | 1 | Surface Mount | Transistor Driver | |||||||||||||||
Texas Instruments UCC2897RTJTFlyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 20-QFN (4x4) | Enable, On Time Control, Soft Start | 20-WFQFN Exposed Pad | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 14.5 V | 250 kHz | 105 °C | -40 °C | Flyback, Forward Converter | 20-QFN (4x4) | 1 | 74 % | 1 | Surface Mount | Transistor Driver | |||||||||||||||
Texas Instruments UCC2897ARGPRThe UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.
The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages.
The UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.
The UCC2897A adds a second-level hiccup-mode current-sense threshold, bi-directional synchronization and input-overvoltage protection functionalities. The UCC2897A is offered in 20-pin TSSOP (PW) and 20-pin QFN (RGP) packages. | Current Limit, Enable, Soft Start | 20-VFQFN Exposed Pad | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 16 V | 250 kHz | 125 ¯C | -40 °C | Flyback, Forward Converter | 20-QFN (4x4) | 1 | 70 % | 1 | Surface Mount | Transistor Driver | |||||||||||||||
Texas Instruments UCC2897PWRFlyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 20-TSSOP | Enable, On Time Control, Soft Start | 0.173 in | 4.4 mm | 20-TSSOP | Step-Up/Step-Down | Isolation Capable, Positive | 8.5 V | 14.5 V | 250 kHz | 105 °C | -40 °C | Flyback, Forward Converter | 20-TSSOP | 1 | 74 % | 1 | Surface Mount | Transistor Driver |
Description
General part information
UCC2897 Series
The UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.
The UCC2897A is a peak current-mode fixed-frequency high-performance pulse-width modulator. The controller includes the logic and the drive capability for the P-channel auxiliary switch along with a simple method of programming the critical delays for proper active-clamp operation.
Features include an internal programmable slope compensation circuit, precise DMAXlimit, and a synchronizable oscillator with an internal-timing capacitor. An accurate line-monitoring function also programs the ON and OFF transitions of the converter with regard to the bulk input voltage, VIN.