IC manufacturers STMicroelectronics

IC manufacturers (103)

STMicroelectronics L9963E | Demoboard AEK-POW-BMSNOTX

Overview

TopologyBattery Management System
IC revision1.0

Description

The AEK-POW-BMSNOTX is a battery management system (BMS) evaluation board that manages from 4 to 14 battery cells.The board is based on the L9963E Li-ion battery monitoring and protection chip for high-reliability automotive applications.The main activity of the L9963E is monitoring the 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 embedded L9963E can act as a transceiver, directly communicating with an MCU via SPI.The board is particularly fit for auxiliary battery systems to supply power for devices (such as audio system, window cleaning system, seat heating, light system, light signalization, climate control system) connected to your vehicle (even when the engine is not running), ensuring the main starting battery is reserved for engine cranking and vehicle electrical requirements.The AEK-POW-BMSNOTX provides an elaborate monitoring network to sense the voltage of each cell. It is possible to sense the current of the entire battery pack. This sensing allows elaborating the SOC of each battery cell and, consequently, the state of charge of all battery packs. The SOC allows assessing the remaining battery capacity, which equates to the remaining driving range. For maintenance reasons, it is important to monitor the SOC estimation over time. According to our algorithm for the SOC calculation, the more the SOC differs from its nominal value (that is, its value when the batteries are new), the more a cell of the battery pack risks overdischarging. Thus, the SOC evolution over time allows asserting the state of health (SOH) of a cell or a battery pack to spot early indications that a cell is at risk of overdischarge or overcharging.The SOC of a battery cell is required to maintain its safe operation and duration during charge, discharge, and storage. However, SOC cannot be measured directly and is estimated from other measurements and known parameters (such as characterization curves or look-up tables). This information on the battery cells is necessary to determine how the voltage varies according to the current, the temperature, etc., on the basis of the battery chemical composition and production lot used. Thanks to the partnership with About:Energy, it is possible to access various battery data models. In the AutoDevKit ecosystem software package, we created an example to elaborate SOC and SOH, using Li-ion batteries. Battery packs may have different SOCs, and balancing is necessary to bring them all to the same charge level. After detecting the lowest charge in the battery pack, all the other battery nodes are discharged to reach its level. The demo explains how to activate the internal MOSFETs of the L9963E, which short-circuit the cell on an external dissipation resistor (resistors are already mounted on the board) to discharge it. Passive cell balancing can be performed either via the L9963E internal MOSFETs or via external MOSFETs. The controller can either manually control the balancing drivers or start a balancing task with a fixed duration. In the second case, the balancing may be programmed to continue. Even when the IC enters a low power mode called silent balancing, to avoid unnecessary current absorption from the battery pack. The balancing function is necessary to lengthen the battery capacity and its duration. Different MCUs can be used. In our demos, we used the AEK-MCU-C4MLIT1, and other ASIL-B and ASIL-D microcontrollers of the SPC58 chorus family.

Features

The board hosts the L9963E AEC-Q100 qualified automotive multicell battery monitoring and balancing ICVoltage monitoring of every single cell and of the entire battery nodeCurrent sensing of the entire battery node4 GPIOs to connect NTC sensors present on the battery pack connector3 NTC sensors that can be connected to CN3, CN4 and CN5 connectors1 NTC sensor to measure the board temperatureCN1 connector to communicate with an MCU board via SPICN2 connector for diagnostic functionsCN6 connector for MCU ADCs dedicated to the NTC sensors readingPassive balancing availableCompact size: 100 mm x 76 mmIncluded in the AutoDevKit ecosystem

Typical applications

  • The board is based on the L9963E Li-ion battery monitoring and protection chip for high-reliability automotive applications.

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
Pitch
(mm)
MountIR
(A)
Working Voltage
(V (AC))
PCB/Cable/PanelContact Resistance
(mΩ)
Tol. RL
(mm)
Stranded Wire Section (AWG)Stranded Wire Section (Metric)Qty.
(pcs)
CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
DF
(%)
RISOCeramic TypeW
(mm)
Fl
(mm)
SW
(mm)
TiFlammability RatingApplicationInterface TypePins
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
PackagingColor Samples
150080GS75000SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 525 Green 515 450 3.2 InGaN 140 SMT 2 4000 0805 -40 °C up to +85 °C 1.25 0.7 Tape and Reel
150080YS75000SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 590 Yellow 595 120 2 AlInGaP 140 SMT 2 4000 0805 -40 °C up to +85 °C 1.25 0.7 Tape and Reel
150080RS75000SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 625 Red 630 150 2 AlInGaP 140 SMT 2 4000 0805 -40 °C up to +85 °C 1.25 0.7 Tape and Reel
885012006053SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 400022 pF ±5% 50 0603 -55 °C up to +125 °C 84010 GΩ NP0 Class I 0.8 0.4 0.8 7" Tape & Reel
885012006054SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 400033 pF ±5% 50 0603 -55 °C up to +125 °C 100010 GΩ NP0 Class I 0.8 0.4 0.8 7" Tape & Reel
885012206085SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 40002.2 nF ±10% 50 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
885012206087SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 40004.7 nF ±10% 50 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
885012206088SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 40006.8 nF ±10% 50 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
885012206089SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 400010 nF ±10% 50 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
885012206093SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 400047 nF ±10% 50 0603 -55 °C up to +125 °C 310 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
885012206094SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 400068 nF ±10% 50 0603 -55 °C up to +125 °C 37.4 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
885012206095SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6 4000100 nF ±10% 50 0603 -55 °C up to +125 °C 35 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
885012207079SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC) 2 30002.2 µF ±10% 25 0805 -55 °C up to +125 °C 100.05 GΩ X7R Class II 1.25 0.5 1.25 7" Tape & Reel
885012207103SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 2 30001 µF ±10% 50 0805 -55 °C up to +125 °C 100.1 GΩ X7R Class II 1.25 0.5 1.25 7" Tape & Reel
885012107014SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC) 2 300010 µF ±20% 16 0805 -55 °C up to +85 °C 100.01 GΩ X5R Class II 1.25 0.5 1.25 7" Tape & Reel
885012208094SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 3.2 20004.7 µF ±10% 50 1206 -55 °C up to +125 °C 100.02 GΩ X7R Class II 1.6 0.5 1.6 7" Tape & Reel
61900311121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Male Locking Header 2.54 THT 3 250 PCB 20 max. 7.62 -40 °C up to +105 °C1000 MΩ 3 Male Vertical 3 Bag Beige
61900411121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Male Locking Header 2.54 THT 250 PCB 20 max. 10.16 -40 °C up to +105 °C1000 MΩ 4 Male Vertical 3 Bag
61900511121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Male Locking Header 2.54 THT 250 PCB 20 max. 12.7 -40 °C up to +105 °C1000 MΩ 5 Male Vertical 3 Bag
61900211621SPEC
4 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Female Terminal Housing 2.54 Cable 5.6 -40 °C up to +105 °C1000 MΩ 2 Female Terminal Housing Bag Beige
61900311621SPEC
4 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Female Terminal Housing 2.54 Cable 8.4 -40 °C up to +105 °C1000 MΩ 3 Female Terminal Housing Bag Beige
61900411621SPEC
4 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Female Terminal Housing 2.54 Cable 10.8 -40 °C up to +105 °C1000 MΩ 4 Female Terminal Housing Bag Beige
61900511621SPEC
4 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Female Terminal Housing 2.54 Cable 13.22 -40 °C up to +105 °C1000 MΩ 5 Female Terminal Housing Bag Beige
624030213322SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.00 mm Female Dual Row Terminal Housing w. positive locking 2 Cable 33.4 -25 °C up to +85 °C1000 MΩ 30 Female Terminal Housing Bag
62403021722SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.00 mm Male Dual Row Horizontal Shrouded Header w. positive locking 2 THT 3 250 PCB 20 max. 33.4 -25 °C up to +85 °C1000 MΩ 30 Male Horizontal 3 Tube White
970080365SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WA-SPAII Plastic Spacer Stud, metric, internal/ internal 8 -30 °C up to +110 °C 6 M3 UL94 HB Bag Black
62400113722SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.00 mm Female Dual Row Crimp Contact 2 3 250 Cable 20 max. 28 to 22 (AWG) 0.081 to 0.326 (mm²) 10000 -25 °C up to +85 °C Female Crimp Terminal 3 Big Reel
61910113722SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Female Crimp Contact 2.54 3 250 Cable 20 max. 28 to 22 (AWG) 0.081 to 0.326 (mm²) 1000 -40 °C up to +105 °C Female Crimp Terminal 3 Small Reel
60900213421SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm Multi-Jumper Jumper with Test Point 2.54 250 20 max. 2.44 -40 °C up to +125 °C1000 MΩ 1 Jumper 3 Bag Black
61300211121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header 2.54 THT 250 20 max. 5.08 -40 °C up to +105 °C1000 MΩ 2 Single Pin Header Straight 3 Bag
61300311121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header 2.54 THT 250 20 max. 7.62 -40 °C up to +105 °C1000 MΩ 3 Single Pin Header Straight 3 Bag
61400416021SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-COM USB 2.0 Type A Horizontal THT 1.5 30 20 max. -40 °C up to +105 °C1000 MΩ USB 2.0 Type A 4 Receptacle Horizontal 1.5 Tray White
61900211121SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Male Locking Header 2.54 THT 250 PCB 20 max. 5.08 -40 °C up to +105 °C1000 MΩ 2 Male Vertical 3 Bag
885012206102SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 1.6 4000100 pF ±10% 100 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
885012206120SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 1.6100 nF ±10% 100 0603 -55 °C up to +125 °C 51 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
885012209073SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 3.210 µF ±10% 50 1210 -55 °C up to +125 °C 100.01 GΩ X7R Class II 2.5 0.6 2.5 7" Tape & Reel
885012209071SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 3.22.2 µF ±10% 100 1210 -55 °C up to +125 °C 50.05 GΩ X7R Class II 2.5 0.75 2.5 7" Tape & Reel
97790603211SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WA-SCRW Pan Head Screw w. cross slot M3 6 2000 -30 °C up to +85 °C UL94 V-0 Bulk Natural
885012206125SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 1.6220 nF ±5% 50 0603 -55 °C up to +125 °C 102.3 GΩ X7R Class II 0.8 0.4 0.8 7" Tape & Reel
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
Pitch
(mm)
MountIR
(A)
Working Voltage
(V (AC))
PCB/Cable/PanelContact Resistance
(mΩ)
Tol. RL
(mm)
Stranded Wire Section (AWG)Stranded Wire Section (Metric)Qty.
(pcs)
CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
DF
(%)
RISOCeramic TypeW
(mm)
Fl
(mm)
SW
(mm)
TiFlammability RatingApplicationInterface TypePins
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
PackagingColor Samples