TEA2226AT/1 - Digital Configurable LLC Resonant Controller | NXP
MPN: TEA2226AT/1 β Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TEA2226AT/1 Overview
A resonant LLC controller is a type of switched-mode power-supply (SMPS) control IC that drives a half-bridge resonant converter operating at or near the resonant frequency of an LC tank. Within the power management hierarchy (AC-DC controller -> resonant converter controller -> power management IC), LLC topologies enable very high efficiency and low electromagnetic interference because switches toggle under zero-voltage switching conditions, minimizing switching losses.
Key features of the TEA2226AT include fully digital configurability, which dramatically reduces external component count and simplifies power-supply design; integrated high-voltage start-up circuitry that removes the need for a separate auxiliary low-power start-up supply; built-in drivers and level shifting for the high-side and low-side bridge switches; and comprehensive protection functions. According to NXP, supplies built on this controller meet efficiency regulations including Energy Star, the US Department of Energy (DoE), the EU Eco-design directive, and the European Code of Conduct.
The digital architecture allows designers to configure operating parameters in firmware or via configuration rather than hard-wired analog networks, enabling one controller platform to serve multiple power levels and output configurations. This shortens design cycles and supports platform strategies across product families.
Typical applications include high-efficiency AC-DC adapters and power supplies for consumer electronics, audio power amplifiers, servers and set-top boxes, and industrial auxiliary supplies where efficiency regulations drive topology choice. The TEA2226AT is commonly paired with an upstream PFC controller such as the NXP TEA2376DT in two-stage designs.
When designing with this controller, verify start-up behavior with the integrated high-voltage SOI stage and observe NXP application guidance for burst-mode operation at light load to maximize standby efficiency.
This page synthesizes distributor availability, alternatives context, and practical design notes not found in the manufacturer datasheet, providing added selection value beyond raw specification listings.
Drop-in alternatives for TEA2226AT/1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TEA2226AT/1 (same form factor and footprint) β differing in Configuration, Package, Topology, Zero-Voltage Switching.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TEA2227AT/1
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
TEA2226AT/1 Maximum Ratings & Electrical Characteristics
| Function | Digital configurable LLC resonant converter controller |
| Topology | Resonant converter (LLC) half-bridge |
| Package | 16-SO (SOIC-16, SOT109-1 suffix) |
| Mounting Type | Surface Mount |
| Start-up | Integrated high-voltage SOI start-up (no auxiliary start-up supply needed) |
| Integrated Drivers | Yes (high-side and low-side with level shifter) |
| Zero-Voltage Switching | Yes (built-in ZVS ensuring circuitry) |
| Configuration | Digital, configurable |
| Protection Functions | Integrated (per manufacturer datasheet) |
| Efficiency Compliance | Energy Star, DoE, EU Eco-design, European Code of Conduct |
TEA2226AT/1 16-so (soic-16, sot109-1 suffix) Pin Configuration Guide
Pin configuration for TEA2226AT/1 (16-so (soic-16, sot109-1 suffix) package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for TEA2226AT/1.
Refer to the datasheet for full pin configuration.
Typical Applications
TEA2226AT/1 is suitable for 6 applications: High-Efficiency AC-DC Power Supplies, Audio Power Amplifier Supplies, Set-Top Boxes and Consumer Electronics, Server and Telecom Auxiliary Supplies, Industrial Auxiliary Power Supplies, Adapters and External Power Supplies.
High-Efficiency AC-DC Power Supplies
The TEA2226AT/1 fits mains-powered AC-DC supplies where Energy Star, DoE, and EU Eco-design efficiency rules must be met. Its integrated SOI high-voltage start-up removes the auxiliary start-up supply, cutting component count and standby losses, while integrated drivers and level shifting drive the half-bridge directly. ZVS operation minimizes switching losses across the load range, and digital configurability lets one hardware platform serve multiple output voltage and power variants, shortening design cycles for consumer and industrial adapters.
Recommended
Audio Power Amplifier Supplies
High-power audio amplifiers require compact supplies with high peak-to-continuous power ratios, such as 500 W continuous and 2000 W peak. NXP community design discussions pair the TEA2226AT-class LLC controller with the TEA2376DT interleaved PFC in exactly this configuration. The LLC topology's ZVS keeps losses low at high output power, the digital controller simplifies scaling of the resonant tank design, and burst-mode-capable standby control helps meet no-load power limits for consumer audio products.
Recommended
Set-Top Boxes and Consumer Electronics
Consumer devices such as set-top boxes face strict external and internal power-supply efficiency codes including the European Code of Conduct that NXP explicitly targets with the TEA2226AT. The controller's very low component count reduces BOM cost in cost-sensitive consumer platforms, the integrated high-voltage start-up supports very low standby power, and digital configurability allows the same controller to be reused across product tiers with different output ratings, reducing qualification effort across a product family.
Recommended
Server and Telecom Auxiliary Supplies
Server and telecom infrastructure uses LLC resonant converters for isolated intermediate-bus and auxiliary rails where efficiency directly affects thermal design and energy costs. The TEA2226AT's ZVS-enabling circuitry sustains high efficiency at the switching frequencies typical of compact LLC designs, integrated drivers reduce gate-drive layout complexity, and comprehensive integrated protections improve reliability in always-on equipment. Compliance with DoE and Energy Star efficiency guidelines supports overall system-level energy targets.
Recommended
Industrial Auxiliary Power Supplies
Industrial control and automation equipment needs robust, efficient auxiliary supplies tolerant of wide mains conditions. The TEA2226AT provides integrated protections and a digitally configurable control scheme that can be adapted to different transformer and tank designs without changing control hardware. Its SOI-based high-voltage start-up behaves predictably across universal mains inputs, and the low external component count suits the long-lifecycle, service-friendly designs typical of industrial power boards and DIN-rail mounted supplies.
Recommended
Adapters and External Power Supplies
External adapters must satisfy mandatory regional efficiency regulations; NXP states the TEA2226AT meets Energy Star, DoE, EU Eco-design, and European Code of Conduct requirements without an auxiliary low-power supply. The integrated high-voltage start-up and burst-mode-capable standby behavior deliver the low no-load input power these rules demand, while digital configurability lets adapter manufacturers reuse one controller design across multiple wattage ratings, simplifying certification and inventory for high-volume adapter platforms.
Recommended
Engineering reference data for TEA2226AT/1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TEA2227AT/1 |
|---|---|---|
| Package | 16-SO (SOIC-16) | 16-SO (SOIC-16) - same |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Function | Digital configurable LLC resonant controller | Digital configurable LLC resonant controller (TEA222x family) |
Key Differentiators
- Integrated high-voltage SOI start-up removes the auxiliary start-up supply (vs Conventional LLC controllers requiring external start-up circuits)
- Digital configurability enables one-platform multi-product reuse (vs TEA19161T (GreenChip combo/flyback family))
- Fully integrated drive stage with ZVS enforcement (vs TEA2227AT/1 (family member))
Design Notes
Take advantage of the integrated high-voltage SOI start-up: no external start-up resistor network or auxiliary start-up winding bias circuit is required at power-up. This eliminates a common failure point (high-value start-up resistors) and improves no-load standby power. Verify that the start-up current drawn from the rectified mains does not compromise your no-load input power target in the final efficiency certification, referencing the NXP TEA2226AT datasheet start-up characteristics.
Because the TEA2226AT integrates both gate drivers and the level shifter for the half-bridge, keep the gate-drive loops from the controller pins to the high-side and low-side power switches as short and symmetric as possible. Minimize the loop area of the resonant tank (bridge switches plus resonant capacitor) to limit radiated EMI, and place ZVS sensing connections close to the switch nodes. Good practice for LLC half-bridge layouts in NXP application guidance applies directly.
Because this is a digitally configurable controller, do not assume settings carry over between family members: configuration differences between TEA2226AT and related TEA222x variants can change burst behavior, protection thresholds, and timing even when the pinout matches. Always re-validate the configuration, protections, and light-load behavior on the bench when substituting any family member, and design protection coordination (OCP, OVP) around the parameters in the official NXP datasheet rather than generic LLC assumptions.
Compliance Information
Efficiency regulation compliance (Energy Star, DoE, EU Eco-design, European Code of Conduct) is stated by NXP for supplies built with this controller; explicit RoHS/REACH/lead-free entries were not present in the captured data and must be confirmed on the official NXP product page.
