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271 pcs
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271 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The UC3855BN from Texas Instruments is a high-performance Power Factor Correction (PFC) integrated circuit designed for boost converters. It utilizes a fixed frequency average current mode control method to minimize line current distortion and achieve near-unity power factor.
Key features include a built-in active snubber (ZVT) that enables operation up to 500kHz, leading to improved EMI and efficiency. The device incorporates an inductor current synthesizer for single current transformer sensing, enhancing efficiency and noise margin. It also includes an accurate analog multiplier with line compensation for universal input voltage operation.
This PFC IC offers overvoltage and overcurrent protection, along with UVLO with hysteresis. It is supplied in a 20-pin DIP package suitable for through-hole mounting. The operating temperature range is 0°C to 70°C, and it requires a supply voltage between 10.5V and 20V, with a typical startup current of 150 µA.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UC3855BN has a switching frequency of 500kHz.
The operating supply voltage range is 10.5V to 20V.
The operating temperature range is 0°C to 70°C.
The UC3855BN is supplied in a 20-DIP (0.300", 7.62mm) package.
The UC3855BN is RoHS3 Compliant.
The Moisture Sensitivity Level (MSL) is 1 Unlimited.
The UC3855BN is REACH Unaffected.