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STMicroelectronics AEK-POW-BMSNOTX

Name: AEK-POW-BMSNOTX
Brand: STMicroelectronics
SKU: AEK-POW-BMSNOTX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AEK-POW-BMSNOTX

Manufacturer:: STMicroelectronics

Category:: Evaluation and Demonstration Boards and Kits

Package:

Datasheet:: AEK-POW-BMSNOTX.pdf

Description:: EVAL BOARD FOR L9963E

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,475

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Product details

Overview

AEK-POW-BMSNOTX from STMicroelectronics is an automotive-grade BMS evaluation board built around the AEC-Q100 qualified L9963E multicell battery monitor IC, supporting 4–14 Li-ion cells, performing per-cell voltage monitoring (±1.5 mV accuracy), pack current sensing, and passive balancing via integrated MOSFETs with external dissipation resistors. It enables SOC/SOH estimation for auxiliary vehicle batteries powering audio, seat heating, lighting, and climate systems.

For engineers reviewing the AEK-POW-BMSNOTX datasheet, AEK-POW-BMSNOTX pinout, AEK-POW-BMSNOTX application, or AEK-POW-BMSNOTX equivalent, this board provides SPI-based MCU interfacing, NTC temperature sensing across three external battery-pack locations plus board temperature, daisy-chain scalability up to 31 nodes, and silent balancing mode for low-power operation during vehicle standby.

Technical Context

The board implements a non-isolated battery management node architecture centered on the L9963E, which performs stack voltage measurement (up to 14 cells), individual cell voltage acquisition (16-bit ADC), coulomb counting, and fault detection including overvoltage, undervoltage, and thermal violation. All measurements are programmable for on-demand or periodic execution with configurable cycle intervals.

SPI communication (CN1) links the L9963E directly to host MCUs such as the SPC58 Chorus family; diagnostic functions (CN2) and dedicated NTC ADC inputs (CN6) support system-level validation and thermal modeling. Passive balancing is executed using internal L9963E MOSFETs driving pre-mounted resistors, with manual or timed activation and low-power silent balancing capability.

Key Specifications

Parameter	Value and Actual Design Meaning
Cell Count Range	4 to 14 series-connected Li-ion cells - defines usable battery pack topology for auxiliary power systems.
Voltage Monitoring Accuracy	±1.5 mV per cell - ensures precise SOC calculation and early overcharge/overdischarge detection.
Current Sensing	Single-point pack current measurement via ISENSEP/ISENSEM - enables coulomb counting and charge/discharge energy tracking.
NTC Interfaces	4 GPIOs + CN3/CN4/CN5/CN6 - supports three external pack-temperature sensors plus one onboard board-temperature sensor.
Communication Interface	SPI (CN1) - enables deterministic, low-latency MCU control and data readout without protocol translation overhead.
Passive Balancing	Internal L9963E MOSFETs + mounted resistors - allows cell-to-cell charge equalization without external driver circuitry.
Board Dimensions	100 mm × 76 mm - compact form factor suitable for integration into automotive ECU test benches and prototype harnesses.

Availability

AEK-POW-BMSNOTX is available at Aetrix Electronics and suitable for automotive auxiliary battery validation, BMS algorithm development, and ASIL-B functional safety prototyping requiring stable component supply and traceable sourcing.

Supply support for AEK-POW-BMSNOTX 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade analog devices with broad industrial and automotive qualification coverage.

The AEK-POW-BMSNOTX belongs to ST's AutoDevKit ecosystem - a modular hardware/software platform designed specifically for rapid prototyping of automotive subsystems, emphasizing interoperability, safety-compliant firmware examples, and SPI-based peripheral integration.

FAQ

Does AEK-POW-BMSNOTX support daisy-chaining with other L9963E-based boards?

Yes, AEK-POW-BMSNOTX supports daisy-chain configuration up to 31 nodes using ISOHp/ISOHm isolation interfaces. The L9963E on-board implements galvanically isolated serial communication between adjacent boards, enabling scalable multi-module BMS architectures without additional level-shifting components.

What MCU families are validated for use with this board?

The board is natively validated with ST's SPC58 Chorus 4M automotive microcontrollers (e.g., AEK-MCU-C4MLIT1), supporting ASIL-B and ASIL-D safety levels. Its SPI interface and GPIO mapping are compatible with any MCU offering standard 3.3 V SPI master functionality and sufficient GPIOs for NTC signal routing and fault signaling.

Is passive balancing implemented solely through internal L9963E MOSFETs?

Yes - passive balancing uses the L9963E's integrated high-side MOSFETs to short selected cells to pre-mounted dissipation resistors on the board. No external FET drivers or gate-control circuitry are required; balancing duration and activation can be controlled manually or via timed automatic tasks, including silent balancing mode.

Can the board operate independently without an external MCU?

No - AEK-POW-BMSNOTX is an evaluation board, not a standalone controller. It lacks local processing, memory, or firmware; all measurement scheduling, SOC/SOH computation, balancing decisions, and fault response must be handled by an external MCU connected via SPI (CN1) and GPIOs (CN2, CN6).

AEK-POW-BMSNOTX Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Packaging:: Bulk

Product Status:: Active

Type:: Power Management

Function:: Battery Monitor

Embedded:: No

Utilized IC / Part:: L9963E

Primary Attributes:: Li-Ion (4 ~ 14 Cells)

Secondary Attributes:: -

Contents:: Board(s)

AEK-POW-BMSNOTX FAQ

1.How can I place an order for AEK-POW-BMSNOTX through Aetrix?

Please submit a Request for Quotation (RFQ) for AEK-POW-BMSNOTX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AEK-POW-BMSNOTX reliable?

The price and inventory of AEK-POW-BMSNOTX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AEK-POW-BMSNOTX is usually 5 days.

3.What payment methods are accepted for AEK-POW-BMSNOTX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AEK-POW-BMSNOTX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AEK-POW-BMSNOTX?

AEK-POW-BMSNOTX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AEK-POW-BMSNOTX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AEK-POW-BMSNOTX?

For technical support, including AEK-POW-BMSNOTX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AEK-POW-BMSNOTX requirements.

6.How does Aetrix verify that AEK-POW-BMSNOTX is sourced from the original manufacturer or authorized distributors?

All AEK-POW-BMSNOTX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AEK-POW-BMSNOTX meets industry standards.

7.What is the process for return or replacement of AEK-POW-BMSNOTX?

All AEK-POW-BMSNOTX units undergo pre-shipment inspection (PSI). If there is an issue with AEK-POW-BMSNOTX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AEK-POW-BMSNOTX part is unused and in its original packaging.

Return procedure for AEK-POW-BMSNOTX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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