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reference designUCC25800-Q1 | Demoboard PMP40970

Texas Instruments UCC25800-Q1 | Demoboard PMP40970

Multiple-output isolated driver bias-supply reference design

Overview

TopologyLLC Resonant Converter
Input voltage24 V
Output 118 V / 0.02 A

Description

This isolated open-loop LLC transformer-driver converter reference design provides four rail outputs. Each output has dual +18-V and –5-V outputs up to 0.5 W for traction inverter applications. The LLC topology allows the transformer to have significant leakage inductance, but a much smaller primary-secondary capacitance, which significantly reduces common-mode current injection through the bias transformer. This reference design offers a high level of integration and high efficiency in a compact form factor. It has passed CISPR 25 class-3 conducted EMI standard.

Features

  • Small open-loop size drives four rails
  • Compact PCB size (36.7 mm x 36 mm)
  • Passed CISPR 25 Class-3 conducted EMI standard

Typical applications

  • IGBT and SiC gate transformer driver bias
  • On-board (OBC) and wireless charger

More information

Products

Order Code
Data­sheet
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Status
Product series
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR 2(mA)
RDC max.(Ω)
Type
Samples
742792093
WE-CBF SMT EMI Suppression Ferrite Bead, 2200 Ω, 3000 Ω
Simu­lation
Downloads9 files

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
Impedance @ 100 MHz2200 Ω
Maximum Impedance3000 Ω
Maximum Impedance80 MHz 
Rated Current 2800 mA
DC Resistance0.6 Ω
TypeWide Band 
750345052
Push-Pull Transformer, –, –
Simu­lation–
Downloads–
Status Activei| Production is active. Expected lifetime: >10 years.
Product series Push-Pull Transformer
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