Bms Evaluation Board Overview; Aek-Pow-Bms63En Overview; Features; Main Components - ST AutoDevKit AEK-POW-BMS63EN User Manual

1

BMS evaluation board overview

1.1

AEK-POW-BMS63EN overview

Our AEK-POW-BMS63EN
Li-ion battery nodes. Each battery node manages from 4 to 14 battery cells, for a voltage range between 48 V and
800 V.
The board is based on the L9963E, which is designed for operation in both hybrid (HE) and full electric (BE)
vehicles using lithium battery packs, but its use can be extended to other Transportation and Industrial
applications.
The L9963E is an ASIL-D, AEC-Q1000 qualified device, compliant with ISO26262.
The main activity of the L9963E is monitoring cells and battery node status through stack voltage measurement,
cell voltage measurement, temperature measurement, and coulomb counting. Measurement and diagnostic tasks
can be executed either on demand or periodically, with a programmable cycle interval. Measurement data are
available for an external microcontroller to perform charge balancing and to compute the state of charge (SOC)
and the state of health (SOH).
The AEK-POW-BMS63EN can measure 5 values of temperature through 5 GPIOs (which can be configured as
analog inputs to connect NTCs).
The AEK-POW-BMS63EN provides an elaborate monitoring network to sense the voltage, current, and
temperature of each cell.
1.1.1

Features

• Hosts the L9963E AEC-Q100 qualified automotive multicell battery monitoring and balancing IC
• Voltage monitoring of every single cell and of the entire battery node
• Voltage, current, and temperature sensing of each cell
• 5 GPIOs to connect temperature sensors as NTCs
• An NTC hosted on the L9963E to sense the chip temperature
• Passive balancing
• Compact size: 100 mm x 76 mm
• Included in the AutoDevKit ecosystem
1.1.2

Main components

1. ISOH port to connect the board to another AEK-POW-BMS63EN in a daisy chain
2. ISOL port to connect the board to the AEK-COM-ISOSPI1
3. L9963E
4. GPIOs for external NTC connection
5. Hot plug protection
6. Balancing resistors
7. Connector for the battery pack
UM3185 - Rev 3
is a battery management system (BMS) evaluation board that can handle from 1 to 31
UM3185
BMS evaluation board overview
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