Nexperia USA Inc. NEVB-NXF6501DCUL

Overview

NEVB-NXF6501DCUL from Nexperia is an evaluation board designed specifically for the NXF6501-Q100 low-noise, 1.2 A push-pull transformer driver IC used in isolated DC/DC power supplies. It supports input voltage range of 2.25 V to 5.5 V, delivers up to 1.0 A isolated output (via onboard 1:1.1 transformer), and enables measurement of critical timing parameters including break-before-make time (t_b-m) and switching rise/fall times.

For engineers reviewing the NEVB-NXF6501DCUL datasheet, NEVB-NXF6501DCUL pinout, NEVB-NXF6501DCUL application, or NEVB-NXF6501DCUL equivalent, this board provides direct access to Vin, GND, Vout, and GND2 terminals plus dedicated test points for D1/D2 inputs and transformer secondary pins - enabling rapid validation of transformer driver performance, EMI behavior, and isolated supply stability under real load conditions.

Technical Context

The NEVB-NXF6501DCUL implements a fixed-frequency (440 kHz) push-pull topology using the NXF6501-Q100 IC to drive a center-tapped transformer with 1:1.1 turns ratio. It operates without external feedback or regulation circuitry, delivering a single positive isolated output voltage derived from the transformer's secondary winding and rectification path.

Board-level design includes fail-safe input logic, low-ESR ceramic decoupling (10 µF ×3, 1 µF ×2, 0.1 µF ×2), and reinforced isolation rated at 2500 V_RMS. Test points TP4–TP8 provide direct access to internal driver inputs and transformer nodes for oscilloscope-based timing and waveform analysis.

Key Specifications

Availability

NEVB-NXF6501DCUL is available at Aetrix Electronics and suitable for isolated power supply evaluation, CAN/RS-485 interface power derivation, and automotive BMS auxiliary rail prototyping requiring stable component supply and traceable sourcing.

Supply support for NEVB-NXF6501DCUL 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 high-volume, high-reliability essential semiconductors - delivering robust, automotive-qualified components with strong process control and long-term supply commitment.

The NXF6501-Q100 product line targets space-constrained isolated power architectures in automotive and industrial systems, where low EMI, precise timing control, and fail-safe operation are mandatory for functional safety compliance.

FAQ

What is the maximum safe input voltage for NEVB-NXF6501DCUL?

The evaluation board must not be operated above 50 V input due to lack of high-voltage protection circuitry. The NXF6501-Q100 IC itself supports up to 5.5 V supply, and the board's design - including capacitor ratings and PCB creepage - is validated only for ≤5 V operation. Exceeding this risks component damage and electric shock hazard.

Can NEVB-NXF6501DCUL generate negative or dual-rail isolated outputs?

No - the board implements a single-ended push-pull configuration with a center-tapped transformer and single-output rectification path, producing only one positive isolated voltage referenced to GND2. Dual or negative outputs require redesigning the secondary winding topology and rectifier stage, which is outside the scope of this EVB's fixed layout.

Does NEVB-NXF6501DCUL include output voltage regulation or feedback?

No - it is an open-loop driver evaluation platform. Output voltage is determined solely by input voltage, transformer turns ratio, and load. Regulation requires external circuitry (e.g., post-regulator LDO or secondary-side controller), as the NXF6501-Q100 does not integrate feedback sensing or PWM adjustment capability.

How is isolation verified on NEVB-NXF6501DCUL?

Isolation integrity relies on the Würth 750315371 transformer's certified 2500 V_RMS rating and the board's physical separation between primary (J1, U1, C1–C7) and secondary (J2, T1 secondary, C2/C5) sections. No onboard hi-pot test points are provided; verification must be performed externally using a calibrated dielectric withstand tester across J1–J2 with appropriate safety protocols.