UCC2897ARGPT
Active110-V ACTIVE CLAMP CURRENT MODE PWM CONTROLLER WITH P-CHANNEL CLAMP FET AND LINE OV PROTECTION
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UCC2897ARGPT
Active110-V ACTIVE CLAMP CURRENT MODE PWM CONTROLLER WITH P-CHANNEL CLAMP FET AND LINE OV PROTECTION
Technical Specifications
Parameters and characteristics for this part
| Specification | UCC2897ARGPT |
|---|---|
| Clock Sync | True |
| Control Features | Current Limit, Soft Start, Enable |
| Duty Cycle (Max) [Max] | 70 % |
| Frequency - Switching | 250 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive, Isolation Capable |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 20-VFQFN Exposed Pad |
| Supplier Device Package | 20-QFN (4x4) |
| Synchronous Rectifier | True |
| Topology | Forward Converter, Flyback |
| Voltage - Supply (Vcc/Vdd) [Max] | 16 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 8.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.97 | |
| 10 | $ 2.67 | |||
| 25 | $ 2.52 | |||
| 100 | $ 2.18 | |||
| Digi-Reel® | 1 | $ 2.97 | ||
| 10 | $ 2.67 | |||
| 25 | $ 2.52 | |||
| 100 | $ 2.18 | |||
| Tape & Reel (TR) | 250 | $ 2.07 | ||
| 500 | $ 1.86 | |||
| 1250 | $ 1.57 | |||
| 2500 | $ 1.49 | |||
| 6250 | $ 1.43 | |||
| Texas Instruments | SMALL T&R | 1 | $ 2.48 | |
| 100 | $ 2.05 | |||
| 250 | $ 1.47 | |||
| 1000 | $ 1.11 | |||
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