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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- The UCC2897APW is a Pulse Width Modulation (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 DMAX limit 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. It adds a second-level hiccup-mode current-sense threshold, bidirectional synchronization and input-overvoltage protection functionalities.
- Low-output jitter
- Soft-stop shutdown of MAIN and AUX
- Ideal for active-clamp, reset-forward, flyback and synchronous rectifier
- Peak current-mode control with 0.5V Cycle-by-cycle current limiting
- Trimmed internal-bandgap reference for accurate line UV and line OV threshold
- Programmable slope compensation
- High-performance 1MHz Synchronizable oscillator with internal timing capacitor
- Precise programmable maximum duty cycle
- Green product and no Sb/Br
- Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
UCC2897APW Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 20 Pin |
| Case/Package | TSSOP-20 |
| Frequency | 1 MHz |
| Supply Voltage (DC) | 8.50V (min) |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | 110 V |
| Output Voltage | 11.1 V |
| Output Current | 2 A |
| Supply Current | 3 mA |
| Number of Positions | 20 Position |
| Input Current | 2.00 mA |
| Number of Regulated Outputs | 1 Output |
| Rise Time | 19 ns |
| Switching Frequency | 250 kHz |
| Duty Cycle | 74 % |
| Maximum Duty Cycle | 74 % |
| Fall Time | 14 ns |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 8.5V ~ 16V |
| Supply Voltage (Max) | 16 V |
| Supply Voltage (Min) | 8.5 V |
| Input Voltage | 110 V |
| Show | |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
| Product Lifecycle Status | Active |
| Packaging | Tube |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
| REACH SVHC Compliance | No SVHC |
| REACH SVHC Compliance Edition | 2015/06/15 |
Order guide
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- Please confirm with the logistics company in advance for remote areas.
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- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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