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NXP Semiconductors TEA9026T/1Y
- Part No.:
- TEA9026T/1Y
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Supply Controllers, Monitors
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TEA9026T/1Y.pdf
- Description:
- TEA9026T
- Quantity:
- Payment:
- Shipping:
Inventory:4,767
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Product details
Overview
TEA9026T/1Y from NXP Semiconductors is a digital LLC resonant mode controller IC for high-efficiency AC-DC power supplies, delivering 90 W to 500 W output with <90 mW no-load input power, wide-input-voltage-range operation, and integrated high-voltage start-up. It regulates output power via primary capacitor voltage sensing (SNSCAP), supports three dynamic operating modes (high-power, low-power, burst), and enables compliance with Energy Star, DoE Level VI, and EU Eco-design directives.
For engineers reviewing the TEA9026T/1Y datasheet, TEA9026T/1Y pinout, TEA9026T/1Y application, or TEA9026T/1Y equivalent, key selection considerations include its Vcap-based regulation architecture, externally adjustable OPP and mode-transition thresholds, SO16 package with integrated HV SOI drivers, and compatibility with secondary-side synchronous rectification using TEA2095T.
Technical Context
The TEA9026T/1Y implements a digital control loop that regulates output power by dynamically adjusting the voltage difference across the resonant capacitor (ΔVSNSCAP), not by frequency modulation. Its dual-die architecture integrates a low-voltage digital controller (for power control, protections, and state machine) and a high-voltage SOI controller (for HV start-up, level shifting, and gate driving).
It operates in three distinct modes: continuous high-power mode (regulated ΔVSNSCAP), low-power mode (fixed 67% duty cycle over 3 half-cycles + hold period), and burst mode (regulated burst frequency of 800 Hz or 1600 Hz). Mode transitions are triggered by measured output power and set via external resistive dividers on SNSSET and SNSOUT pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| No-load input power | <90 mW - eliminates need for auxiliary supply, reducing BOM count and system cost |
| Output power range | 90 W to 500 W - supports UHD TV and industrial mid-power applications without redesign |
| Start-up time | <500 ms at 100 V AC - ensures fast system wake-up while maintaining safety margins |
| Burst frequency | 800 Hz or 1600 Hz (externally selectable) - avoids audible noise and enables precise light-load efficiency tuning |
| Regulated SUPREG voltage | 11 V ±1% - provides stable gate drive for low-side MOSFETs and reference for external circuits |
| Capacitor voltage sensing range | Vhs(SNSCAP) = 2.5 V, Vls(SNSCAP) = 1.27 V - defines ΔVSNSCAP window used directly to calculate delivered output power |
| Optocurrent regulation | 85 µA (SNSFB) - minimizes standby loss while preserving feedback loop stability |
Pinout & Package
TEA9026T/1Y is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads and 3.9 mm body width. The package supports surface-mount assembly and thermal performance suitable for enclosed power supply environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUPIC (Pin 1) | Input supply voltage / HV start-up output | Charged via SUPHV during start-up; powers internal circuitry and SUPREG regulator; connects to auxiliary winding or DC supply |
| SNSFB (Pin 2) | Output voltage feedback sense | Receives optocoupler current from secondary TL431; regulates output voltage with 85 µA bias target |
| SNSOUT (Pin 3) | Low-input-voltage mode transition sense | Sets low-power-to-burst transition threshold at low line; connects to resistive divider from auxiliary winding |
| GND (Pin 4) | Ground reference | Common return for analog and digital sections; requires low-impedance PCB connection |
| SUPREG (Pin 5) | Regulated internal supply output | 11 V stabilized output powering low-side driver and external bootstrap diode; triggers UVP if <9.5 V |
| GATELS (Pin 6) | Low-side MOSFET gate driver | Drives LLC low-side switch; includes max on-time protection and non-overlap timing control |
| n.c. (Pin 7) | No connect | Must remain unconnected; floating per datasheet |
| SUPHV (Pin 8) | HV start-up source input | Connects to rectified mains via RSUPHV; charges SUPIC during start-up and protection recovery |
| GATEHS (Pin 9) | High-side MOSFET gate driver | Drives LLC high-side switch; referenced to HB node; requires external bootstrap capacitor (SUPHS) |
| SUPHS (Pin 10) | High-side driver floating supply | Input for bootstrap capacitor; charged from SUPREG via external diode; critical for gate drive integrity |
| HB (Pin 11) | Half-bridge node reference | Provides slope detection for zero-voltage switching; connects between LLC MOSFETs |
| n.c. (Pin 12) | No connect | Must remain unconnected; floating per datasheet |
| SNSSET (Pin 13) | Mode transition and OPP configuration | Sets high-line low-power/burst transition, high-power/low-power threshold, OPP level, and burst frequency |
| SNSCUR (Pin 14) | Resonant current sense input | Detects LLC tank current for OCP and capacitive mode regulation; connects to sense resistor |
| SNSCAP (Pin 15) | Resonant capacitor voltage sense | Measures primary capacitor voltage to compute output power; defines Vhs/Vls thresholds for switching control |
| SNSBOOST (Pin 16) | Boost voltage sense | Monitors boost rail for start-up validation; releases GATELS/GATEHS when ≥Vstart(SNSBOOST) |
Key Features
| Feature | Design Value |
|---|---|
| Three-mode adaptive operation | Automatically selects high-power, low-power, or burst mode based on real-time output power - achieves >90% efficiency down to 5% load |
| Vcap-based regulation | Uses sensed primary capacitor voltage (SNSCAP) instead of frequency to regulate power - eliminates frequency jitter and improves EMI behavior |
| Integrated HV SOI controller | Combines HV start-up, level shifter, and gate drivers in one die - removes need for external HV bias networks and reduces layout complexity |
| Externally configurable thresholds | SNSSET and SNSOUT pins allow resistor-based setting of OPP, mode transitions, and burst frequency - enables single-BOM flexibility across multiple output power targets |
| Capacitive mode regulation (CMR) | Detects and prevents operation in capacitive region using SNSCUR and SNSCAP - protects MOSFETs from hard-switching stress |
| Adaptive non-overlap time | Dynamically adjusts dead time between GATEHS and GATELS transitions based on HB node slope - ensures robust ZVS across line/load conditions |
Applications
| Large Screen UHD/4K TVs | Office Printers |
|---|---|
|
Use Scenario: Primary power supply for 55–85 inch LCD/LED TVs requiring high efficiency at light loads and silent operation. IC Role / Device Role / Timing Role: Digital LLC controller regulating 200–400 W output via Vcap sensing; manages burst mode at standby to meet <90 mW no-load requirement. Use Value: Eliminates auxiliary supply and reduces component count by 30%, enabling thinner chassis and faster time-to-market for energy-compliant models. |
Use Scenario: Main power stage in multifunction printers with variable load profiles (standby, warm-up, print, duplex). IC Role / Device Role / Timing Role: Controls LLC resonant converter delivering 120–300 W; transitions seamlessly between high-power (print) and burst mode (standby) with <500 ms wake-up. Use Value: Achieves DoE Level VI and EU CoC Tier 2 compliance without derating, supporting global regulatory certification with one design. |
| E-bike Chargers | Industrial LED Drivers |
|
Use Scenario: On-board charger for 36–48 V battery systems with wide AC input (90–264 VAC) and thermal constraints. IC Role / Device Role / Timing Role: Primary-side LLC controller managing 250 W output; uses low-power mode to maintain >88% efficiency at 10% load during battery top-off. Use Value: Enables compact, fanless enclosure design with no auxiliary supply - reduces bill-of-materials and improves long-term reliability. |
Use Scenario: Constant-current LED driver for high-bay lighting with strict THD and flicker requirements. IC Role / Device Role / Timing Role: Regulates LLC output using SNSFB optocoupler feedback and SNSCAP-based power control; maintains tight CV/CC accuracy across 10–100% load. Use Value: Delivers <10% THD and zero-audible-noise operation via 28 kHz minimum low-power frequency and burst-mode silence - meets IEC 61000-3-2 Class C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital LLC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC256301 (Texas Instruments) | Analog-digital hybrid controller; uses frequency modulation + burst; lacks Vcap-based regulation and low-power mode | Requires external HV start-up circuit; higher no-load power (~120 mW); less effective below 10% load | Prefer TEA9026T/1Y when ultra-low standby power and simplified BOM are mandatory |
| ICE2HS01G (Infineon) | Fully analog LLC controller; no digital state machine; fixed burst frequency; no programmable mode transitions | Needs external OPP circuitry; no SNSSET configurability; limited adaptability to varying input/output specs | Choose TEA9026T/1Y for designs requiring field-programmable thresholds and multi-region compliance (DoE/EuP/Eco-design) |
Compared with UCC256301 and ICE2HS01G, the TEA9026T/1Y delivers superior light-load efficiency through its unique low-power mode and eliminates auxiliary supply dependency via integrated HV start-up and Vcap regulation - reducing total solution size and qualification effort.
Availability
TEA9026T/1Y is available at Aetrix Electronics and suitable for large-screen TVs, office printers, e-bike chargers, and industrial LED drivers requiring stable component supply, long-lifecycle support, and full regulatory compliance documentation.
Supply support for TEA9026T/1Y includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.
The TEA9026T/1Y belongs to NXP's GreenChip™ digital power controller family, designed specifically for high-efficiency, low-standby-power AC-DC conversion in regulated markets - emphasizing integration, compliance automation, and system-level simplification.
FAQ
What is the primary regulation method used by the TEA9026T/1Y?
The TEA9026T/1Y regulates output power by measuring the voltage across the primary resonant capacitor (via SNSCAP pin) and dynamically adjusting the difference between high and low capacitor voltage thresholds (Vhs/Vls). This Vcap-based method replaces traditional frequency modulation, delivering tighter power control, lower EMI, and improved light-load efficiency without audible noise.
Does the TEA9026T/1Y require an auxiliary power supply?
No, the TEA9026T/1Y does not require an auxiliary power supply. Its integrated high-voltage SOI start-up circuit (SUPHV → SUPIC) eliminates the need for external bias windings or auxiliary converters. This reduces component count, lowers system cost, and enables <90 mW no-load input power - satisfying stringent global energy regulations without additional circuitry.
How does the TEA9026T/1Y manage transitions between operating modes?
The TEA9026T/1Y automatically transitions between high-power, low-power, and burst modes based on real-time output power derived from SNSCAP measurements. Transition thresholds are set externally via resistive dividers on SNSSET and SNSOUT pins, allowing precise, application-specific tuning without firmware changes or requalification.
What protection features are integrated into the TEA9026T/1Y?
The TEA9026T/1Y integrates overcurrent protection (OCP), overvoltage protection (OVP), overpower protection (OPP), supply undervoltage protection (UVP), on-chip overtemperature protection (OTP), open-loop protection (OLP), and capacitive mode regulation (CMR). All protections are hardware-based and active across all operating modes, ensuring robust fault response without software intervention.
Can the TEA9026T/1Y be used with synchronous rectification on the secondary side?
Yes, the TEA9026T/1Y is explicitly designed to pair with the TEA2095T dual synchronous rectifier controller on the secondary side. This combination enables full-bridge or center-tapped SR configurations, further reducing conduction losses and achieving <94% peak efficiency - as validated in NXP reference designs for 240 W and 400 W UHD TV power supplies.
TEA9026T/1Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Applications:
- Resonant Converter Controller
- Voltage - Input:
- -
- Voltage - Supply:
- 19.1V ~ 36V
- Current - Supply:
- 5.6 mA
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
TEA9026T/1Y FAQ
1.How can I place an order for TEA9026T/1Y through Aetrix?
Please submit a Request for Quotation (RFQ) for TEA9026T/1Y on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TEA9026T/1Y reliable?
The price and inventory of TEA9026T/1Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TEA9026T/1Y is usually 5 days.
3.What payment methods are accepted for TEA9026T/1Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TEA9026T/1Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TEA9026T/1Y?
TEA9026T/1Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TEA9026T/1Y order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TEA9026T/1Y?
For technical support, including TEA9026T/1Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TEA9026T/1Y requirements.
6.How does Aetrix verify that TEA9026T/1Y is sourced from the original manufacturer or authorized distributors?
All TEA9026T/1Y products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TEA9026T/1Y meets industry standards.
7.What is the process for return or replacement of TEA9026T/1Y?
All TEA9026T/1Y units undergo pre-shipment inspection (PSI). If there is an issue with TEA9026T/1Y, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TEA9026T/1Y part is unused and in its original packaging.
Return procedure for TEA9026T/1Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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