UCC2897RTJT
NRNDIC REG CTRLR MULT TOPOLOGY 20QFN
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UCC2897RTJT
NRNDIC REG CTRLR MULT TOPOLOGY 20QFN
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Technical Specifications
Parameters and characteristics for this part
| Specification | UCC2897RTJT |
|---|---|
| Clock Sync | True |
| Control Features | Enable, On Time Control, Soft Start |
| Duty Cycle (Max) [Max] | 74 % |
| Frequency - Switching | 250 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 105 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive, Isolation Capable |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 20-WFQFN Exposed Pad |
| Supplier Device Package | 20-QFN (4x4) |
| Synchronous Rectifier | True |
| Topology | Forward Converter, Flyback |
| Voltage - Supply (Vcc/Vdd) [Max] | 14.5 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 8.5 V |
UCC2897A Series
110-V active clamp current mode PWM controller with P-channel clamp FET and line OV protection
| Part | Function | Supplier Device Package | Synchronous Rectifier | Number of Outputs | Mounting Type | Output Configuration | Clock Sync | Voltage - Supply (Vcc/Vdd) [Min] | Voltage - Supply (Vcc/Vdd) [Max] | Package / Case [y] | Package / Case | Package / Case [x] | Operating Temperature [Max] | Operating Temperature [Min] | Frequency - Switching | Control Features | Output Phases | Topology | Duty Cycle (Max) [Max] | Output Type | Voltage - Input [Min] | Voltage - Input [Max] | Current - Output | Utilized IC / Part | Board Type | Outputs and Type | Outputs and Type | Main Purpose | Supplied Contents | Regulator Topology | Voltage - Output |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments | Step-Up/Step-Down | 20-TSSOP | 1 | Surface Mount | Isolation Capable Positive | 8.5 V | 14.5 V | 4.4 mm | 20-TSSOP | 0.173 in | 105 °C | -40 °C | 250 kHz | Enable On Time Control Soft Start | 1 | Flyback Forward Converter | 74 % | Transistor Driver | |||||||||||||
Texas Instruments | Step-Up/Step-Down | 20-QFN (4x4) | 1 | Surface Mount | Isolation Capable Positive | 8.5 V | 16 V | 20-VFQFN Exposed Pad | 125 ¯C | -40 °C | 250 kHz | Current Limit Enable Soft Start | 1 | Flyback Forward Converter | 70 % | Transistor Driver | |||||||||||||||
Texas Instruments | Step-Up/Step-Down | 20-TSSOP | 1 | Surface Mount | Isolation Capable Positive | 8.5 V | 14.5 V | 4.4 mm | 20-TSSOP | 0.173 in | 105 °C | -40 °C | 250 kHz | Enable On Time Control Soft Start | 1 | Flyback Forward Converter | 74 % | Transistor Driver | |||||||||||||
Texas Instruments | Step-Up/Step-Down | 20-TSSOP | 1 | Surface Mount | Isolation Capable Positive | 8.5 V | 14.5 V | 4.4 mm | 20-TSSOP | 0.173 in | 105 °C | -40 °C | 250 kHz | Enable On Time Control Soft Start | 1 | Flyback Forward Converter | 74 % | Transistor Driver | |||||||||||||
Texas Instruments | Step-Up/Step-Down | 20-QFN (4x4) | 1 | Surface Mount | Isolation Capable Positive | 8.5 V | 14.5 V | 20-WFQFN Exposed Pad | 105 °C | -40 °C | 250 kHz | Enable On Time Control Soft Start | 1 | Flyback Forward Converter | 74 % | Transistor Driver | |||||||||||||||
Texas Instruments | Step-Up/Step-Down | 20-QFN (4x4) | 1 | Surface Mount | Isolation Capable Positive | 8.5 V | 16 V | 20-VFQFN Exposed Pad | 125 ¯C | -40 °C | 250 kHz | Current Limit Enable Soft Start | 1 | Flyback Forward Converter | 70 % | Transistor Driver | |||||||||||||||
Texas Instruments | Step-Up/Step-Down | 20-QFN (4x4) | 1 | Surface Mount | Isolation Capable Positive | 8.5 V | 14.5 V | 20-WFQFN Exposed Pad | 105 °C | -40 °C | 250 kHz | Enable On Time Control Soft Start | 1 | Flyback Forward Converter | 74 % | Transistor Driver | |||||||||||||||
Texas Instruments | Step-Up/Step-Down | 20-TSSOP | 1 | Surface Mount | Isolation Capable Positive | 8.5 V | 14.5 V | 4.4 mm | 20-TSSOP | 0.173 in | 105 °C | -40 °C | 250 kHz | Enable On Time Control Soft Start | 1 | Flyback Forward Converter | 74 % | Transistor Driver | |||||||||||||
Texas Instruments | Step-Up/Step-Down | 20-TSSOP | 1 | Surface Mount | Isolation Capable Positive | 8.5 V | 16 V | 4.4 mm | 20-TSSOP | 0.173 in | 125 ¯C | -40 °C | 250 kHz | Current Limit Enable Soft Start | 1 | Flyback Forward Converter | 70 % | Transistor Driver | |||||||||||||
Texas Instruments | 250 kHz | 36 V | 72 V | 30 A | UCC2897A | Fully Populated | Isolated | 1 | DC/DC Step Down | Board(s) | Forward Converter | 3.3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 250 | $ 3.51 | |
| 500 | $ 3.15 | |||
| 1250 | $ 2.66 | |||
| 2500 | $ 2.53 | |||
Description
General part information
UCC2897A 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.
Documents
Technical documentation and resources
No documents available