UCC28056 6-pin high performance CRM/DCM PFC controller | TI.com

UCC28056 (ACTIVE) 6-pin high performance CRM/DCM PFC controller

 

Recommended alternative orderable part

The UCC28056C device is an EXACT EQUIVALENT in functionality and parametrics to the UCC28056 device, with improved noise immunity for ZCD detection. Request now

Description

The UCC28056 device drives PFC boost stages based on an innovative mixed mode method that operates in transition mode (TM) at full load and transitions seamlessly into discontinuous conduction mode (DCM) at reduced load, automatically reducing switching frequency. This device incorporates burst mode operation to further improve light load performance, enabling systems to meet challenging energy standards while eliminating the need to switch off the PFC. UCC28056 can drive a PFC power stage up to 300 W, ensuring sinusoidal line input current with low distortion, close to unity power factor. When used with the LLC controller UCC256403/4, and dual synchronous rectifier controller UCC24624 less than 80 mW system standby power can be achieved, enabling PFC always on architecture and eliminating the need for an auxiliary converter. This with FET Drain valley turn-on with simple boost inductor allows fewest component count.

Features

  • Ultra-low no-load input power enables < 80-mW standby power at 230 VAC in PFC+LLC system
  • Excellent light load efficiency and high efficiency over wide range of load due to multi-mode TM and DCM control
  • Enables low system cost through FET Drain valley synchronized turn-on which eliminates need for second winding on the boost inductor
  • Enables compliance to green power standards without disabling PFC
    • EuP Lot 6 Tier 2, CoC Ver. 5 Tier 2, Energy Star Ver. 6.1, DoE Level VI
  • Burst mode with soft-entry and soft-exit periods enables ultra-low audible noise output
  • Enhanced Error Amplifier, responds rapidly to load steps without degrading input current distortion
  • User adjustable valley delay ensures valley switching
  • Low start-up current consumption (<46 µA)
  • Wide VCC range 8.5 V to 34 V
  • Cycle-by-cycle current limit
  • Second independent output over-voltage protection
  • Integrated over-temperature protection
  • Create a custom design using the UCC28056 device with the WEBENCH® Power Designer

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WEBENCH® Designer UCC28056

Product Option
AC Frequency  60 Hz  50 Hz
  Min   Max Range
VinRMS  V
Vout  V
Iout  A
Ambient Temp  °C -40 to 125°C

Parametrics

Compare all products in Power factor correction (PFC) controllers Email Download to Excel
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)
UCC28056 Order now 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)    
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 Order now 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)    
UCC28064A Order now 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)    
UCC28070 Order now 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 Order now 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)