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Overview
| Topology | Half-Bridge Converter symmetrical isolated |
| Input voltage | 12 V |
| Output 1 | 20.5 V |
| IC revision | 001 |
Description
This reference design is an open-loop LLC converter, which provides four 18-V and 2.5 V outputs and up to 2.4 W for onboard charger applications. UCC25800-Q1 is used as the controller. 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.
Features
Small size open-loop LLCReinforce insulationCompact PCB size (55 mm * 45 mm)
Typical applications
More information
Products
| Order Code | Datasheet | Downloads | Status | Product series | Pins (Value) (pcs) | Pitch (mm) | Gender | Type | Mount | IR (A) | Working Voltage (V (AC)) | PCB/Cable/Panel | Contact Resistance (mΩ) | Tol. R | L (mm) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 61900311121 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WR-WTB 2.54 mm Male Locking Header | 3 | 2.54 | Male | Vertical | THT | 3 | 250 | PCB | 20 | max. | 7.62 | Bag | |
| 750345026 | SPEC | – | Active i| Production is active. Expected lifetime: >10 years. | Gate Drive Transformer | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | |
|---|---|---|
| 61900311121 | SPEC |
| 750345026 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Status | Product series | Pins (Value) (pcs) | Pitch (mm) | Gender | Type | Mount | IR (A) | Working Voltage (V (AC)) | PCB/Cable/Panel | Contact Resistance (mΩ) | Tol. R | L (mm) | Packaging | Samples |
|---|