NXP Semiconductors TEA2017ABT/2Y
- Part No.:
- TEA2017ABT/2Y
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Supply Controllers, Monitors
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TEA2017ABT/2Y.pdf
- Description:
- PFC + RESONANT POWER SUPPLY CONT
- Quantity:
- Payment:

- Shipping:

Inventory:2,500
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Product details
Overview
TEA2017ABT/2 from NXP Semiconductors is a digital configurable dual-mode controller integrating DCM/QR PFC and LLC resonant control in a single SO16 package. It delivers precise primary-capacitor-voltage-based output power regulation, supports three dynamic operating modes (high-power, low-power, burst), and enables <75 mW no-load input power in combination with TEA2095T for 90–500 W high-efficiency AC-DC supplies used in gaming PSUs and LCD TVs.
For engineers reviewing the TEA2017ABT/2 datasheet, TEA2017ABT/2 pinout, TEA2017ABT/2 application, or TEA2017ABT/2 equivalent, key selection considerations include its digitally programmable mode transition thresholds, integrated X-cap discharge, valley-detection-enabled ZVS, configurable OCP/OPP/OTP protection levels, and GUI-assisted tuning of soft-start, jitter, and audible-noise suppression.
Technical Context
The TEA2017ABT/2 implements a hardware-state-machine-based digital architecture for deterministic real-time control of both PFC and LLC stages. Its VCAP-based regulation loop directly measures delivered output power to determine operating mode transitions-eliminating frequency-loop gain variation and enabling accurate, load-dependent burst/low-power entry points.
It integrates high-voltage start-up (via DRAINPFC), bootstrap-supplied high-side gate drivers (GATEHS/SUPHS), and dual-sensing paths: SNSCURLLC for resonant current and SNSCAP for primary capacitor voltage. Protection functions-including CMR, OVP, OPP, OTP, and ICP-are independently programmable via MTP memory with latched or auto-restart behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PFC Mode | Discontinuous Conduction Mode (DCM) / Quasi-Resonant (QR) - enables high PF & low THD without boost diode reverse recovery losses. |
| LLC Regulation Method | VCAP-based primary capacitor voltage sensing - provides direct output power measurement for stable mode transitions and no-frequency-loop compensation. |
| No-Load Input Power | <75 mW (with TEA2095T) - eliminates need for auxiliary supply and meets Energy Star/EuP Eco-design requirements. |
| Operating Modes | Three programmable modes: high-power (continuous switching), low-power (3-half-cycle hold), burst (programmable Tburst) - optimized for efficiency across full 0–100% load range. |
| Protection Features | Configurable OCP, OPP, OTP, OVP, UVP, CMR, ICP, brown-in/out - each with independent trip level, timer, and latch/restart policy stored in MTP. |
| Start-up Supply | Integrated HV current source from DRAINPFC to SUPIC - enables self-starting from rectified mains without external bias winding during initial charge. |
| Package | SO16 (SOT109-1), 3.9 mm body width - surface-mount compatible with standard PCB assembly and thermal management for high-density PSU designs. |
Pinout & Package
TEA2017ABT/2 is housed in a plastic small-outline package (SO16, SOT109-1) with 16 leads and 3.9 mm body width. The package supports standard reflow profiles and provides adequate creepage/clearance for 475 VDC operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SNSMAINS (1) | Mains voltage & external temperature sense | Enables brown-in/out detection and system-level thermal derating using single resistor divider. |
| SNSBOOST (2) | Boost voltage feedback | Monitors PFC output voltage for accurate regulation; threshold Vstart(SNSBOOST) triggers LLC enable. |
| SNSCURPFC (3) | PFC current sense | Detects zero-current crossing and peak current for DCM/QR timing and OCP. |
| GND (4) | Signal ground reference | Common return for analog sensing and digital core; isolated from power ground per layout guidelines. |
| GATEPFC (5) | PFC MOSFET gate driver | Drives external PFC switch with programmable slew rate and dead-time control. |
| GATELS (6) | LLC low-side gate driver & bootstrap supply | Drives LLC low-side MOSFET and charges external CSUPHS capacitor for high-side drive. |
| DRAINPFC (8) | HV start-up source & X-cap discharge | Provides internal HV current for SUPIC charging, valley detection, and automatic X-cap discharge at shutdown. |
| GATEHS (9) | LLC high-side gate driver | Drives high-side MOSFET using floating SUPHS rail; synchronized with GATELS for ZVS assurance. |
| SUPHS (10) | High-side driver floating supply | Input for external bootstrap capacitor (CSUPHS); referenced to HB node for level-shifting. |
| HB (11) | Half-bridge node sense | Connects to LLC bridge midpoint for slope detection and valley/peak timing critical for ZVS. |
| SUPIC (13) | Main IC supply input | Powered initially by DRAINPFC HV source, then by LLC auxiliary winding; regulated to Vstart(SUPIC) during burst/non-switching. |
| SNSCAP (14) | LLC primary capacitor voltage sense | Divided input for Vhs/Vls(SNSCAP) thresholds - core signal for power-regulated mode control. |
| SNSCURLLC (15) | LLC resonant current sense | Measures primary current for OCP, CMR, and startup current limiting; referenced to GND. |
| SNSFB (16) | Output voltage feedback & power-good | Optocoupler input for secondary regulation; also outputs POWER_GOOD signal when VOUT is stable. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-controller integration | Single SO16 IC replaces discrete PFC + LLC controllers - reduces BOM count, layout area, and design cycle time. |
| Programmable mode transitions | Three operating modes (high-power/low-power/burst) with user-defined power thresholds - enables optimization for efficiency vs. audible noise trade-offs. |
| X-capacitor discharge | Internal discharge path via DRAINPFC - eliminates external bleed resistors and associated standby power loss. |
| Valley/zero-voltage switching | Hardware-accelerated valley detection on HB node - ensures ZVS across wide load range, minimizing switching losses. |
| GUI-based configuration | Real-time parameter tuning (soft-start, jitter, burst frequency) via NXP GUI - accelerates prototyping without firmware changes. |
| Secure configuration storage | MTP memory with read-protection - prevents cloning of proprietary power supply settings and IP. |
Applications
| Desktop & All-in-One PCs | Gaming Power Supplies |
|---|---|
Use Scenario: High-efficiency 300–500 W ATX-compatible PSU with tight no-load power limits and transient response demands. IC Role / Device Role / Timing Role: Primary controller managing PFC stage and LLC half-bridge; regulates output via SNSCAP and enforces burst-mode entry below 5 W load. Use Value: Achieves <75 mW system no-load power and >92% efficiency at 50% load - compliant with 80 PLUS Titanium and EU Eco-design Tier 2. | Use Scenario: Modular 750 W PSU with dynamic load steps (0→100% in <1 ms) and acoustic noise constraints. IC Role / Device Role / Timing Role: Dual-stage controller coordinating PFC and LLC timing; uses low-power mode hold periods and burst-on delay to suppress audible coil whine during light loads. Use Value: Eliminates need for auxiliary supply while maintaining <20 dB(A) acoustic noise at 23°C ambient - validated per SPECpower SSJ2008. |
| LCD Television | Notebook Adapters |
Use Scenario: Slim 200 W open-frame PSU for 55″ 4K TV with EMI-sensitive display interface and thermal-limited enclosure. IC Role / Device Role / Timing Role: Digital PFC+LLC controller implementing PFC jitter and burst-mode frequency programming to shift EMI peaks outside critical bands. Use Value: Reduces conducted EMI by 8 dBμV at 150 kHz–30 MHz without added filtering - passes CISPR-32 Class B with 3 dB margin. | Use Scenario: 90 W GaN-based notebook adapter requiring ultra-low standby power and fast transient recovery. IC Role / Device Role / Timing Role: Combo controller regulating PFC output and LLC primary capacitor; uses SNSFB current regulation to maintain 100 μA opto-current during burst mode. Use Value: Enables 0.03 W no-load consumption and <100 μs recovery from 20%→100% load step - exceeds DOE Level VI and EU CoC v5 Tier 2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PFC+LLC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28070DWR | Analog dual-phase interleaved PFC + external LLC controller - lacks integrated LLC gate drivers, digital configurability, and VCAP regulation. | Requires separate LLC driver IC and external microcontroller for mode sequencing - higher component count and longer development cycle. | Choose when legacy analog design flow or multi-phase PFC is required; not suitable for compact single-stage resonant topologies. |
| ICE5QSAG | Quasi-resonant flyback + PFC combo IC - uses frequency modulation instead of VCAP control; no true LLC support or burst-mode optimization. | Targeted at sub-100 W adapters; cannot scale to >200 W with same efficiency or thermal profile as TEA2017ABT/2. | Prefer for cost-sensitive low-power adapters where LLC complexity is unnecessary; avoid for high-density 90–500 W systems. |
Compared with UCC28070DWR and ICE5QSAG, the TEA2017ABT/2 uniquely combines digital configurability, integrated LLC drivers, VCAP-based power regulation, and <75 mW no-load performance - making it the only option supporting scalable, GUI-tuned, single-package 90–500 W resonant power supplies meeting latest global energy standards.
Availability
TEA2017ABT/2 is available at Aetrix Electronics and suitable for desktop PC power supplies, gaming PSUs, LCD television main supplies, and notebook adapters requiring stable component supply, long-term lifecycle support, and compliance with Energy Star, DOE Level VI, and EU Eco-design directives.
Supply support for TEA2017ABT/2 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 TEA2017ABT/2 belongs to NXP's GreenChip™ AC-DC controller family, designed specifically for high-efficiency, digitally configurable resonant power conversion targeting next-generation energy-compliant power supplies.
FAQ
What is the primary function of the TEA2017ABT/2 in a power supply design?
The TEA2017ABT/2 serves as an integrated digital controller for combined DCM/QR PFC and LLC resonant converter stages. It manages both power factor correction and LLC half-bridge switching using a VCAP-based regulation scheme, enabling high efficiency across full load range, programmable operating modes, and <75 mW no-load input power when paired with TEA2095T. Its hardware-state-machine architecture ensures deterministic real-time control without software overhead.
How does the TEA2017ABT/2 achieve zero-voltage switching (ZVS) in the LLC stage?
The TEA2017ABT/2 achieves ZVS through integrated valley detection on the HB pin, synchronized with resonant current sensing on SNSCURLLC. Its hardware state machine monitors the half-bridge node slope and current polarity to precisely time GATEHS and GATELS transitions - ensuring turn-on occurs at or near resonant current zero-crossing. This eliminates hard-switching losses and maintains ZVS across 10–100% load, confirmed by typical efficiency curves in Section 9 of the datasheet.
Can the TEA2017ABT/2 operate without an auxiliary winding on the LLC transformer?
Yes - the TEA2017ABT/2 includes an integrated high-voltage start-up circuit sourced from the DRAINPFC pin, allowing initial SUPIC charging directly from the PFC drain voltage. During normal operation, the auxiliary winding supplies SUPIC, but during burst mode or fault conditions, the internal HV current source resumes regulation of SUPIC to Vstart(SUPIC). This dual-supply architecture eliminates dependency on auxiliary winding for start-up or protection recovery.
What protection features are configurable in the TEA2017ABT/2 and how are they implemented?
The TEA2017ABT/2 supports independent configuration of overcurrent (OCP), overpower (OPP), overtemperature (OTP), overvoltage (OVP), capacitive mode regulation (CMR), and inrush current (ICP) protections. Each is programmed via MTP memory with user-defined trip thresholds, timers, and response policies (latched, auto-restart, or restart-after-attempt). For example, OTP can be set to trigger at 145°C with 500 ms delay and latched shutdown, while OVP on SNSBOOST uses a 2.63 V threshold with hysteresis.
Is the TEA2017ABT/2 pin-compatible with other NXP GreenChip controllers like TEA2016 or TEA2095T?
No - the TEA2017ABT/2 has a unique 16-pin SO16 pinout optimized for dual-stage control, including dedicated SNSCAP, SNSCURLLC, and DRAINPFC pins not present in TEA2016 (PFC-only) or TEA2095T (LLC-driver-only). While TEA2017ABT/2 and TEA2095T are functionally complementary and commonly used together in 90–500 W designs, they are not pin-compatible; TEA2095T is a 14-pin SO14 device with different driver topology and sensing inputs.
TEA2017ABT/2Y 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:
- Digital Power Controller
- Voltage - Input:
- -
- Voltage - Supply:
- 36V
- Current - Supply:
- 8 mA
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
TEA2017ABT/2Y FAQ
1.How can I place an order for TEA2017ABT/2Y through Aetrix?
Please submit a Request for Quotation (RFQ) for TEA2017ABT/2Y 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 TEA2017ABT/2Y reliable?
The price and inventory of TEA2017ABT/2Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TEA2017ABT/2Y is usually 5 days.
3.What payment methods are accepted for TEA2017ABT/2Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TEA2017ABT/2Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TEA2017ABT/2Y?
TEA2017ABT/2Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TEA2017ABT/2Y 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 TEA2017ABT/2Y?
For technical support, including TEA2017ABT/2Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TEA2017ABT/2Y requirements.
6.How does Aetrix verify that TEA2017ABT/2Y is sourced from the original manufacturer or authorized distributors?
All TEA2017ABT/2Y 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 TEA2017ABT/2Y meets industry standards.
7.What is the process for return or replacement of TEA2017ABT/2Y?
All TEA2017ABT/2Y units undergo pre-shipment inspection (PSI). If there is an issue with TEA2017ABT/2Y, 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 TEA2017ABT/2Y part is unused and in its original packaging.
Return procedure for TEA2017ABT/2Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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