Nexperia USA Inc. NEVB-NPS3102BUL

Overview

NEVB-NPS3102BUL from Nexperia is a 4-layer evaluation board for the NPS3102B auto-retry electronic fuse, designed to validate 12 V system protection in automotive and industrial power distribution. It supports adjustable current limit (2 A–13.5 A), selectable output slew rate (1/3/10 ms), thermal shutdown, overvoltage clamping, and short-circuit detection with LED fault indication.

For engineers reviewing the NEVB-NPS3102BUL datasheet, NEVB-NPS3102BUL pinout, NEVB-NPS3102BUL application, or NEVB-NPS3102BUL equivalent, this board enables rapid validation of eFuse behavior under hot-swap transients, inrush control, latch vs. auto-retry response, and dV/dt-controlled power-up sequencing in real 12 V load circuits.

Technical Context

This evaluation board implements the NPS3102B eFuse in a fully instrumented test environment: input voltage range 9–18 V, continuous DC load current up to 11 A at 25 °C, and integrated NMOS short-circuit monitor (Q1) with comparator-based fault signaling. The board uses discrete transient protection diodes (D1, D2) and configurable jumpers for current limit (JP1), slew rate (JP2), and enable/reset (J2).

Thermal management relies on 4-layer copper stackup with internal planes acting as heat spreaders; junction temperature exceeds 125 °C under high-current clamp events, triggering built-in thermal protection. Test points (TP1–TP6) provide direct access to EN/FLT, VIN/VOUT sense, dV/dt control, and ILIM adjustment nodes for oscilloscope and multimeter validation.

Key Specifications

Availability

NEVB-NPS3102BUL is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O power rails, server board hot-swap zones, and embedded systems requiring validated 12 V eFuse behavior under transient stress.

Supply support for NEVB-NPS3102BUL 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

Nexperia is a global semiconductor expert focused on essential efficiency technologies - delivering high-performance, reliable, and scalable components for automotive, industrial, and consumer applications.

The NEVB-NPS3102BUL belongs to Nexperia's eFuse evaluation platform family, engineered to accelerate design-in of programmable overcurrent and overvoltage protection solutions into 12 V power architectures.

FAQ

Can NEVB-NPS3102BUL be used with the NPS3102A eFuse?

Yes - the board is mechanically and electrically compatible with both NPS3102A (latching) and NPS3102B (auto-retry) eFuses. The BOM specifies U1 as "NPS3102A or NPS3102B", and jumper J2 pin 1–2 provides manual reset for NPS3102A operation. Swapping devices allows direct comparison of fault-handling strategies.

What is the purpose of TP4 (dV/dt test point)?

TP4 provides direct access to the dV/dt control node that sets output voltage ramp time. Measuring here confirms actual slew rate behavior under varying load capacitance and validates timing alignment with downstream power sequencing requirements before system integration.

Does the board include transient voltage suppression?

Yes - it integrates PTVS16VP1UP bidirectional TVS diode (D1) on VIN and PNE20010ER Schottky diode (D2) on VOUT for input overvoltage clamping and reverse-polarity protection, enabling robust evaluation under ISO 7637-2 pulse conditions.

How is short-circuit fault detection verified on this board?

Using JP3 to connect a pulse generator to the 100 mΩ short-circuit resistor, then monitoring TP1 (EN/FLT) and LED D4. The TLV6703 comparator (U2) triggers within microseconds when Q1's drain voltage exceeds threshold, confirming functional fault detection independent of eFuse internal logic.