NXP Semiconductors TEA1916DB1262UL

Overview

TEA1916DB1262 from NXP Semiconductors is a 240 W, 12 V/20 A digital resonant LLC power supply demonstration board featuring integrated PFC (TEA19162T), half-bridge LLC controller (TEA19161T), and synchronous rectifier controller (TEA1995T). It delivers ≥89 % CoC average efficiency across universal AC input (90–264 V_RMS), supports burst mode and low-power mode for <100 mW no-load consumption, and complies with EuP Lot 6 and ENERGY STAR 2.0 standby requirements.

For engineers reviewing the TEA1916DB1262 datasheet, TEA1916DB1262 application, TEA1916DB1262 evaluation board layout, or TEA1916DB1262 design reference, this page provides verified performance data, measured efficiency curves, mode-transition thresholds (HP→LP at 53.4 W, LP→BM at 21.3 W), OVP/SCP/OPP protection behavior, and EMI compliance results per conducted emissions testing.

Technical Context

The TEA1916DB1262 implements a two-stage architecture: a BCM-mode PFC front-end (TEA19162T) followed by a digitally controlled LLC resonant half-bridge converter (TEA19161T) with adaptive frequency modulation. The secondary side uses the TEA1995T dual-gate SR controller to drive two independent MOSFETs on center-tapped transformer windings.

Operation spans three dynamic modes: normal high-power mode (>53.4 W), low-power mode (21.3–53.4 W) with modified gate timing, and burst mode (<21.3 W) with intermittent switching cycles. Protection includes latched OVP (triggered at 14.1 V), SCP via SNSCUR pin (±1.5 V threshold), and OPP based on SNSCAP voltage monitoring with 25 A continuous / 30 A peak current limits.

Key Specifications

Availability

TEA1916DB1262 is available at Aetrix Electronics and suitable for high-efficiency AC-DC power supply development, resonant converter reference design validation, and 80+ Titanium/EuP Lot 6 compliance testing requiring stable component supply and traceable evaluation hardware.

Supply support for TEA1916DB1262 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 power electronics applications.

The TEA1916DB1262 belongs to NXP's TEA1916x digital power controller family, designed specifically for high-efficiency, digitally managed resonant AC-DC power supplies targeting server, telecom, and industrial power systems requiring ultra-low standby loss and wide-load-range efficiency.

FAQ

What is the primary function of the TEA1916DB1262?

The TEA1916DB1262 is a complete 240 W, 12 V digital resonant power supply demonstration board. It integrates NXP's TEA19161T (LLC half-bridge controller), TEA19162T (PFC controller), and TEA1995T (synchronous rectifier controller) on a single PCB to showcase a fully functional, high-efficiency AC-DC conversion solution meeting ENERGY STAR 2.0 and EuP Lot 6 standards. TEA1916DB1262 enables rapid evaluation of system-level performance, not just individual IC behavior.

Does the TEA1916DB1262 support universal AC input?

Yes, the TEA1916DB1262 operates across 90–264 V_RMS AC input with 47–63 Hz frequency range, eliminating the need for manual voltage selection switches. This universal input capability is enabled by the TEA19162T PFC controller's quasi-resonant valley-skipping operation and the TEA19161T's adaptive frequency control, ensuring stable regulation and high efficiency across both 115 V and 230 V mains conditions. TEA1916DB1262 achieves ≥89 % CoC average efficiency at both line voltages.

How does the TEA1916DB1262 achieve ultra-low no-load power consumption?

The TEA1916DB1262 achieves <100 mW no-load input power through coordinated low-power mode and burst mode operation across all three controllers. Below 53.4 W, the TEA19161T enters low-power mode with optimized gate timing; below 21.3 W, it transitions to burst mode with intermittent switching cycles. The TEA19162T PFC also enters burst mode at very low loads. TEA1916DB1262 measures 46 mW at 115 V/60 Hz and 51 mW at 230 V/50 Hz no-load conditions.

What protection features are implemented on the TEA1916DB1262?

The TEA1916DB1262 implements comprehensive protection: OverVoltage Protection (OVP) triggers at 14.1 V output and latches; Short-Circuit Protection (SCP) activates when SNSCUR pin voltage exceeds ±1.5 V, initiating safe-restart after ~4 ms; OverPower Protection (OPP) limits continuous output to 25 A (300 W) and permits 30 A peaks for ≤50 ms. All protections are hardware-monitored and validated per IEC/EN 62368-1 requirements. TEA1916DB1262 includes X-capacitor discharge time of 505 ms.

Is the TEA1916DB1262 compliant with conducted EMI standards?

Yes, the TEA1916DB1262 prototype demo board complies with conducted EMI standards per CISPR 22/32 Class B limits. Measurements were performed at full load (12.1 V / 20.1 A) with 230 V/50 Hz and 120 V/50 Hz inputs, capturing both Line and Neutral paths. EMI suppression is achieved using common-mode chokes (LF102), Y-capacitors (CY201), and X-capacitors (CX101/CX102), with results shown in Figures 20 and 21 of UM10972. TEA1916DB1262 passed all tested configurations without external filtering.