TEA2376BT - Digital Interleaved PFC Controller SO14 | NXP
MPN: TEA2376BT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.15 | $2.15 |
| 10 | $1.95 | $19.50 |
| 100 | $1.78 | $178.00 |
| 500 | $1.62 | $810.00 |
| 1,000 | $1.48 | $1,480.00 |
TEA2376BT Overview
A PFC controller is a power management IC that shapes the input current waveform of an AC-DC power supply so it follows the input voltage, maximizing real power and meeting harmonic-current regulations such as those applied to TV, computing, server, and industrial equipment. The TEA2376 belongs to the interleaved PFC controller class, in which two boost phases are operated out of phase to halve input ripple current and reduce the required EMI filtering relative to a single-phase PFC.
Key features of the TEA2376BT include programmable phase shedding and burst mode operation for high efficiency at light load, dual output overvoltage protection, inrush current handling, and independently configurable, programmable protection parameters. All configuration is performed digitally over an I2C/system interface, eliminating numerous external resistors and enabling one firmware platform to cover multiple power levels.
Technically, the digital architecture lets designers tune valley switching, phase management, and protection thresholds precisely, producing an easy-to-design, highly efficient, and reliable interleaved PFC. NXP notes that for high switching frequency and high power applications, IC package thermal limitations require attention during design.
Typical applications include TV power supplies, computing and server SMPS, and industrial power supplies where PFC front ends up to 1000 W are required. Interleaving plus light-load phase shedding keeps efficiency high across the load range, from standby through full power.
A key design consideration is thermal budgeting: at high power with elevated switching frequency, verify SO14 package dissipation and provide adequate PCB copper under the pins. Also confirm the correct orderable suffix (/0, /1) since programming capabilities differ within the TEA2376 family.
This page synthesizes distributor pricing, family drop-in alternatives, and practical design guidance not found in a single manufacturer datasheet, optimizing selection for engineers and buyers.
Drop-in alternatives for TEA2376BT 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 TEA2376BT (same form factor and footprint) β differing in Package, Switching Frequency Range.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TEA2376BT/1Y
β Drop-Inπ Reference alternative (not in catalog)
TEA2376BT/1
β Drop-Inπ Reference alternative (not in catalog)
TEA2376DT
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
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View Datasheet βTEA2376BT Maximum Ratings & Electrical Characteristics
| Product Type | Digital configurable two-phase interleaved PFC controller |
| Topology | Interleaved boost PFC (2 phases) |
| Control Mode | Discontinuous Conduction Mode (DCM) / Quasi-Resonant with valley switching |
| Switching Frequency Range | 40 kHz to 130 kHz |
| Typical Power Range | Up to 1000 W (typical) |
| Supply Voltage | 22 V |
| Operating Temperature | -25C to +125C (TJ) |
| Package | SOIC-14 (SO14, 0.154 in / 3.90 mm width) |
| Mounting Type | Surface Mount |
| Phase Shedding | Yes, programmable |
| Burst Mode Operation | Yes, programmable |
| Configuration Interface | I2C / system interface (digital configuration) |
| Protections | Dual output overvoltage protection, inrush current, programmable independent protections |
| X-capacitor Discharge | Yes (TEA2376 family feature per NXP product page) |
| Packaging Option | Tape & Reel (TR) and Cut Tape (CT) |
TEA2376BT soic-14 (so14, 0.154 in / 3.90 mm width) Pin Configuration Guide
Pin configuration for TEA2376BT (soic-14 (so14, 0.154 in / 3.90 mm width) 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 TEA2376BT.
Refer to the datasheet for full pin configuration.
Typical Applications
TEA2376BT is suitable for 6 applications: TV Power Supplies, Server and Computing SMPS, Industrial AC-DC Power Supplies, High-Efficiency Boost PFC Front Ends (300 W to 1000 W), Light-Load Efficiency Optimized Designs, Platform Power Supply Families (Configurable Multi-Rating Designs).
TV Power Supplies
Modern flat-panel TV power supplies must meet strict harmonic-current and standby-efficiency regulations while fitting a very low profile and low cost. The TEA2376BT fits this application because its two-phase interleaved boost PFC operating in DCM/QR with valley switching reduces input ripple current and switching loss across a 40 kHz to 130 kHz frequency range, while programmable phase shedding and burst mode keep light-load and standby efficiency high. In use, the controller drives two interleaved boost phases ahead of the LLC or flyback main converter, with dual output overvoltage protection safeguarding the downstream stage. The digital I2C configuration lets one TV platform reuse the same PFC design across screen sizes from about 300 W to 1000 W by changing programmed parameters rather than resistor values, cutting BOM variants and qualification effort.
Recommended
Server and Computing SMPS
Server and desktop computing power supplies run continuously and are judged on AC efficiency across the full load range, making the PFC front end a major efficiency lever. The TEA2376BT addresses this because its valley-switched quasi-resonant operation minimizes turn-on losses, and its independently programmable protection thresholds (including dual output overvoltage protection) satisfy the reliability expectations of computing platforms rated up to typically 1000 W. In a typical server SMPS, the TEA2376BT drives two interleaved boost legs from a 90-264 VAC input, halving per-MOSFET peak current and distributing thermal stress. Designers should note NXP's caution that at high switching frequency and high power, SO14 package thermal limits require attention, so gate-charge budget and PCB copper must be engineered carefully in 80 PLUS-class designs.
Recommended
Industrial AC-DC Power Supplies
Industrial power supplies for automation, drives, and instrumentation demand robust protection, wide-mains tolerance, and long service life. The TEA2376BT suits these supplies because its programmable, independently configurable protections - inrush current handling and dual output overvoltage protection among them - can be tuned to the fault profile of industrial environments, and its digital configuration supports platform-level reuse from a few hundred watts up to the typical 1000 W capability. In a typical industrial front end, the TEA2376BT operates two interleaved boost phases from a rectified 230 VAC bus, with valley switching reducing MOSFET stress and EMI filter size. The -25C to +125C junction operating range covers harsh cabinets, and burst-mode phase shedding maintains efficiency during low-load idle periods common in standby industrial equipment.
Recommended
High-Efficiency Boost PFC Front Ends (300 W to 1000 W)
Any AC-DC supply in the mid-power band benefits from interleaved PFC rather than a single phase, and this is the core application of the TEA2376BT. It fits because two out-of-phase boost phases cancel input ripple current, reducing EMI filter bulk and peak diode stress, while DCM/QR valley switching keeps efficiency high without the complexity of continuous-conduction control. The 40 kHz to 130 kHz operating window lets designers trade magnetics size against switching loss for their specific power level. Practically, the controller manages phase shedding automatically as load changes, engaging both phases at high load and one phase plus burst mode at light load, and its programmable parameters mean the same PCB can span multiple power ratings. NXP recommends thermal review at the upper end of the power range due to SO14 package limits.
Recommended
Light-Load Efficiency Optimized Designs
Applications that spend most of their life at partial or light load - office equipment, connected appliances, always-on adapters - benefit specifically from the TEA2376BT's programmable phase shedding and burst mode operation. These features fit the application because phase shedding disables one interleaved phase below a programmed load threshold, eliminating that phase's switching and gate losses, while burst mode skips switching cycles entirely at very low load to hold standby input power low. In a typical implementation, the designer programs the phase-shedding boundary and burst entry/exit levels over the I2C/system interface during development, tailoring the efficiency curve to the measured load profile of the end product. Combined with valley switching, this keeps the PFC efficient from no-load standby through the typical 1000 W maximum, supporting energy-star style requirements without additional circuitry.
Recommended
Platform Power Supply Families (Configurable Multi-Rating Designs)
OEMs building a family of power supplies across multiple wattage ratings from one PCB save cost by using a digitally configurable PFC controller, and this is precisely the value proposition of the TEA2376BT. It fits because configuration - protection thresholds, phase-shedding points, burst levels - is performed digitally via the I2C/system interface rather than with fixed external resistors, so a single PCB layout can be reprogrammed per SKU during production. The interleaved topology scaled through the family covers roughly 300 W to the typical 1000 W capability, with 40 kHz to 130 kHz frequency flexibility accommodating different magnetics choices per rating. Practically, engineers validate one hardware platform and qualify firmware variants, reducing inventory SKUs and time to market. Thermal margins should be validated per rating since the SO14 package is shared across the platform.
Recommended
Recommended Products Summary
Engineering reference data for TEA2376BT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TEA2376BT/1Y | TEA2376BT/1 | TEA2376DT |
|---|---|---|---|---|
| Package | SOIC-14 (SO14) | SOIC-14 - same | SOIC-14 - same | SOIC-14 - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Topology | Two-phase interleaved PFC | Two-phase interleaved PFC | Two-phase interleaved PFC | Two-phase interleaved PFC |
| Control Mode | DCM / QR with valley switching | DCM / QR with valley switching | DCM / QR with valley switching | DCM / QR with valley switching |
| Switching Frequency | 40 kHz to 130 kHz | 40 kHz to 130 kHz | 40 kHz to 130 kHz | 40 kHz to 130 kHz |
| Typical Power Capability | Up to 1000 W (typical) | Up to 1000 W (typical) | Up to 1000 W (typical) | Up to 1000 W (typical) |
Key Differentiators
- Digital configurability over I2C/system interface (vs TEA2376AT)
- Programmable phase shedding and burst mode (vs TEA2376DT)
- Interleaved two-phase topology in a compact SO14 (vs Single-phase PFC controllers)
Design Notes
NXP explicitly cautions that for high switching frequency and high power applications, the SO14 package thermal limitations of the TEA2376BT require attention. Estimated: IC dissipation is dominated by gate-drive losses - two phases times Qg x fsw x Vdrive - plus controller quiescent power. At fsw = 100 kHz with typical superjunction MOSFETs, gate-drive loss can approach several hundred milliwatts; verify junction temperature against the -25C to +125C (TJ) rating using your actual PCB copper area and theta-JA.
Lay out the two boost phases symmetrically so gate-drive path lengths and current loops match, preserving current sharing between phases. Keep the VCC decoupling capacitor close to the IC with a solid ground return, and route the GATE1/GATE2 outputs away from the current-sense and feedback traces to prevent switching-edge coupling into protection comparators. Follow the TEA2376 datasheet typical application schematic for sense-resistor and boost-inductor connections before freezing the layout.
Confirm the correct orderable suffix before design freeze: the TEA2376AT uses an SO10 package and programs via GATE1/GATE2 pins, so it is NOT pin-compatible with the SO14 TEA2376BT (per NXP Community FAQ). Also, the /0 and /1 programming versions differ in system-interface capability - code written for one suffix may not configure another. Verify protection settings (dual OVP thresholds, inrush handling) against your downstream converter specification, since the TEA2376 protections are independently programmable.
Compliance Information
RoHS/REACH status not present in the retrieved verified data; confirm on the official NXP product page at nxp.com/part/TEA2376BT before ordering for regulated markets. Industrial/commercial PFC controller; AEC-Q100 not applicable per category.
