The UCC28220 is a BiCMOSinterleaved dual-channel PWM controller. Peak current mode control is used to ensure current sharing between the two channels. A precise maximum duty cycle clamp can be set to any value between 60% and 90% duty cycle per channel. UCC28220 has an UVLO turn-on threshold of 10 V for use in 12-V supplies. It has 8-V turn-off threshold.
Additional features include a programmable internal slope compensation with a special circuit that ensures exactly the same slope is added to each channel. The UCC28220 is available in a 16-pin low-profile TSSOP package.
PowerPAD is a trademark of Texas Instruments.
| Topology | Flyback, Forward |
| Control mode | Current |
| Duty cycle (max) (%) | 90 |
| Switching frequency (max) (kHz) | 2000 |
| Features | Adjustable switching frequency, Current limiting, Input line monitor, Multi-topology, Programmable max duty cycle, Programmable slope compensation, Soft start |
| UVLO thresholds on/off (V) | 10.5/8.4 |
| Operating temperature range (°C) | -40 to 125 |
| Rating | Automotive |
| Gate drive (typ) (A) | 0.01 |
| Vin (max) (V) | 14.5 |
| SOIC (D) | 16 | 59.4 mm² 9.9 x 6 |
| TSSOP (PW) | 16 | 32 mm² 5 x 6.4 |
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