The UCC28064A interleaved PFC controller has higher power ratings than previously possible. The device uses a Natural Interleaving™ technique. Both channels operate as masters (there is no slave channel) synchronized to the same frequency. This approach enables faster response time, excellent phase-to-phase on-time matching, and transition mode operation for each channel. The device has a burst mode function to get high light-load efficiency. Burst mode eliminates the need to turn off the PFC during light load operation to meet standby power targets. Burst mode eliminates the need for an auxiliary flyback converter when paired with UCC25630x LLC controller and the UCC24624 synchronous rectifier controller.
Expanded system level protections features include input brownout and dropout recovery, output over-voltage, open-loop, overload, soft-start, phase-fail detection, and thermal shutdown. The additional fail-safe over-voltage protection (OVP) feature protects against shorts to an intermediate voltage that, if undetected, could lead to catastrophic device failure. Advanced non-linear gain results in rapid, yet smooth response to line and load transient events. Special line-dropout handling avoids significant current disruption. Strong reduction of bias current when not switching during burst mode operation, improves stand-by performance.
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Part number | Order | Device type | Control method | UVLO thresholds on/off (V) | Operating supply (Max) (V) | Operating supply current (mA) | Operating temperature range (C) | Rating | Features | Package Group | Package size: mm2:W x L (PKG) |
---|---|---|---|---|---|---|---|---|---|---|---|
UCC28064A |
|
Interleaved PFC | TM | 10.35 / 9.6 | 21 | 5 | -40 to 125 | Catalog |
< 150W Applications
> 750W Applications Burst mode for no load regualtion Feed-forward correction for near unity PF Interleaved Low Power Soft Start |
SOIC | 16 | 16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16) |
UCC28050 | Samples not available | Single-phase PFC | TM | 15.8/9.7 | 18 | 4 | -40 to 85 | Catalog |
OVP
Supports Flyback Transition Mode Control |
PDIP | 8
SOIC | 8 |
8PDIP: 93 mm2: 9.43 x 9.81 (PDIP | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) |
UCC28051 |
|
Single-phase PFC | TM | 12.5/9.7 | 18 | 4 | -40 to 105 | Catalog |
OVP
Supports Flyback Transition Mode Control |
PDIP | 8
SOIC | 8 |
8PDIP: 93 mm2: 9.43 x 9.81 (PDIP | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) |
UCC28056 |
|
Single-phase PFC | TM | 10.65/8.85 | 34 | 2.2 | -40 to 125 | Catalog |
< 150W Applications
Audible noise minimization circuitry Low Power OVP Soft Start Transition Mode Control |
SOT-23 | 6 | 6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6) |
UCC28070 |
|
Interleaved PFC | CCM | 10.2/9.2 | 21 | 20 |
-40 to 125
-40 to 85 |
Catalog |
> 750W Applications
Average Current Mode Interleaved OVP Programable switching frequency |
SOIC | 20
TSSOP | 20 |
20SOIC: 132 mm2: 10.3 x 12.8 (SOIC | 20)
20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20) |
UCC28180 |
|
Single-phase PFC | CCM | 11.4/9.7 | 21 | 7 | -40 to 125 | Catalog |
Audible noise minimization circuitry
Burst mode for no load regualtion No AC line sensing Programable switching frequency |
SOIC | 8 | 8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) |
UCC38050 | Samples not available | Single-phase PFC | TM | 15.8/9.7 | 18 | 4 | 0 to 70 | Catalog |
OVP
Transition Mode Control |
PDIP | 8
SOIC | 8 |
8PDIP: 93 mm2: 9.43 x 9.81 (PDIP | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) |
UCC38051 | Samples not available | Single-phase PFC | TM | 12.5/9.7 | 18 | 4 | 0 to 70 | Catalog |
OVP
Transition Mode Control |
SOIC | 8 | 8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) |