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UCC28782

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High density active clamp flyback controller, EMI dithering, x-cap discharge, bias power management

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High density active clamp flyback controller, EMI dithering, x-cap discharge, bias power management

UCC28782

ACTIVE
Data sheet Order now

Product details

Parameters

Control method Secondary-side regulation Duty cycle (Max) (%) 99 Frequency (Max) (kHz) 1500 UVLO thresholds on/off (V) 2.2(ON)/1.23(OFF) Features Integrated Switching Bias Regulator Operating temperature range (C) -40 to 125 Rating Catalog open-in-new Find other Flyback controllers

Package | Pins | Size

WQFN (RTW) 24 16 mm² 4 x 4 open-in-new Find other Flyback controllers
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Technical documentation

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Type Title Date
* Datasheet UCC28782 High Density Active Clamp Flyback Controller with EMI Dithering, X-Cap datasheet (Rev. C) Aug. 06, 2020
Application note Transformer structures that achieve low EMI with low- and high-side rectifiers Sep. 22, 2020
User guide Using the UCC28782EVM-030 (Rev. B) Aug. 20, 2020
More literature UCC28782EVM-030 EU Declaration of Conformity (DoC) (Rev. A) Jun. 29, 2020

Design & development

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Hardware development

EVALUATION BOARD Download
document-generic User guide
299
Description
UCC28782EVM-030 demonstrates high-efficiency and high-density for a 65-W USB Type-C™ power delivery (PD) off-line adapter using the UCC28782 active-clamp flyback controller.  The input supports a universal 90 Vac to 264 Vac and the single output can be set to 5 V, 9 V and 15 V all at 3-A (...)
Features
  • Universal AC input of 90 to 264 Vac with USB Type-C™ PD 3.0 compliant output up to 65 W (5 V/3 A, 9 V/3 A, 15 V /3 A, 20 V/3.25 A)
  • Efficiency and standby power consumption exceeds regulatory requirements CoC Tier 2 and DoE Level VI
  • Power density of 30 W/in3 with an efficiency of 93% at 90-VAC full (...)
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Design tools & simulation

SIMULATION MODEL Download
SLUM740.ZIP (617 KB) - SIMPLIS Model
CALCULATION TOOL Download
SLURAZ0A.ZIP (817 KB)

CAD/CAE symbols

Package Pins Download
WQFN (RTW) 24 View options

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