NXP Semiconductors BATT-14EMULATOR

Overview

BATT-14EMULATOR from NXP Semiconductors is a 14-cell battery pack emulator designed to power and validate battery management system (BMS) evaluation boards-specifically MC33771C/MC33772-based EVBs-without requiring physical battery packs. It provides full cell voltage emulation across 14 series-connected cells (CT0–CT14), supports up to 60 V input, and delivers stable DC supply to up to four connected evaluation boards via standardized Molex connectors.

For engineers reviewing the BATT-14EMULATOR datasheet, BATT-14EMULATOR pinout, BATT-14EMULATOR application, or BATT-14EMULATOR equivalent, this device serves as a repeatable, safe, and configurable test source for BMS hardware-in-the-loop validation, cell monitoring accuracy testing, and daisy-chain communication verification under controlled lab conditions.

Technical Context

The BATT-14EMULATOR operates as a programmable, open-circuit voltage source emulating a 14-cell lithium-ion or lithium-polymer stack. It outputs precise, individually accessible cell terminal voltages (CT0 through CT14) referenced to common GND, with no internal current limiting or protection circuitry-intended solely for benchtop evaluation use.

Unlike the BATT-14CEMULATOR, it does not include NTC temperature emulation circuitry; external NTCs must be added to the BATT-14EXTENDER board when using BATT-14EMULATOR to satisfy thermal sensing requirements of connected BCC evaluation boards.

Key Specifications

Availability

BATT-14EMULATOR is available at Aetrix Electronics and suitable for BMS hardware validation, battery cell controller functional testing, and daisy-chain communication debugging requiring stable component supply and traceable sourcing.

Supply support for BATT-14EMULATOR 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in battery management and analog front-end ICs.

The BATT-14EMULATOR belongs to NXP's Analog Toolbox evaluation platform family, engineered specifically to accelerate development of high-accuracy, multi-cell BMS designs using MC33771/MC33772 battery cell controllers.

FAQ

What is the primary function of the BATT-14EMULATOR?

The BATT-14EMULATOR is a 14-cell battery pack emulator that provides precise, isolated cell terminal voltages (CT0–CT14) to power and test NXP's MC33771C/MC33772 battery cell controller evaluation boards. It replaces physical battery packs during lab validation, enabling repeatable, safe, and controllable BMS functional testing without charge/discharge cycles or thermal hazards. The BATT-14EMULATOR itself contains no active regulation or protection circuitry-it is a passive voltage source intended only for engineering evaluation use.

Does the BATT-14EMULATOR include NTC temperature emulation?

No, the BATT-14EMULATOR does not include built-in NTC temperature emulation. When used with the BATT-14EXTENDER board to power MC33771C/MC33772 EVBs, external NTC thermistors (e.g., AVX NC20K00103JBA) must be populated at footprints RT1–RT4 on the BATT-14EXTENDER to satisfy the thermal sensing inputs required by those evaluation boards. This is explicitly documented in UM11484 Section 4.2 as a mandatory step for accurate thermal validation.

Which evaluation boards are compatible with the BATT-14EMULATOR?

The BATT-14EMULATOR is designed to interface with NXP's BATT-14EXTENDER board, which in turn supports up to four MC33771/MC33772-based evaluation boards-including RD33771CDSTEVB, FRDM33771CSPEVB, and XRD33775ADSTEVB. These EVBs connect to the BATT-14EXTENDER via J2–J5 Molex 501876 connectors, while the BATT-14EMULATOR connects to J1. Compatibility is confirmed in UM11484 Sections 2.2, 3.1, and 6 (References).

How is the BATT-14EMULATOR physically connected to the BATT-14EXTENDER?

The BATT-14EMULATOR connects to the BATT-14EXTENDER board via the J1 26-pin Molex 501876 connector. Pin assignments match Table 1 in UM11484: CT0–CT14, GND (pins 9–10), VBAT (pin 25), and NTC return paths (pins 1,3,5,7) and sense lines (pins 2,4,6,8). The mating connector is Molex 501646-2600. No soldering or modification is required-the connection is plug-and-play using the supplied cable or direct mating.

Can the BATT-14EMULATOR be used as a drop-in replacement for a real 14-cell battery pack?

No-the BATT-14EMULATOR is not a drop-in replacement for an operational battery pack. It lacks current delivery capability, overvoltage/overcurrent protection, thermal runaway safeguards, and dynamic load response. It is strictly an engineering evaluation tool for static voltage injection during BMS development. Final system validation must always include actual battery packs under real-world electrical and thermal conditions, as stated in UM11484's legal disclaimers and safety notices.