IC manufacturers STMicroelectronics

IC manufacturers (104)

STMicroelectronics L99BM114 | Demoboard STEVAL-BMS114TX

Overview

TopologyBattery Management System
IC revision1.0

Description

The STEVAL-BMS114TX is a battery management system (BMS) evaluation board that manages from 4 to 14 battery cells.The main advantage of this evaluation board is ensuring isolated connection to an external MCU, thanks to the embedded transceiver.The board is based on the L99BM114 Li-ion battery monitoring and protection chip for high-reliability applications and the L99BM1T general-purpose SPI to isolated SPI bidirectional transceiver.The main activity of the L99BM114 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 L99BM1T general-purpose SPI to isolated SPI bidirectional transceiver can transfer communication data incoming from a classical 4-wire based SPI interface to a 2-wire isolated interface (and vice versa). In our board, the transceiver is configured as a slave.The STEVAL-BMS114TX provides an elaborate monitoring network to sense the voltage of each cell. It is possible to sense the current of the entire battery pack.Passive cell balancing can be performed either via the L99BM114 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.

Features

Hosts the L99BM114 multicell battery monitoring and balancing ICHosts the L99BM1T general purpose SPI to isolated SPI bidirectional transceiverVoltage monitoring of every single cell and of the entire battery nodeCurrent sensing of the entire battery node5 GPIOs to connect temperature sensors as NTCsCN1 connector that allows establishing communication with an MCU board via SPICN2 connector that interfaces directly to an MCU board for control and diagnostic functionsPassive balancingCompact size: 100 mm x 76 mm

Typical applications

  • Energy generation and distribution

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
GenderPins
(pcs)
TypeWire SectionContact PlatingIR
(A)
Working Voltage
(V (AC))
Contact Resistance
(mΩ)
PackagingQty.
(pcs)
Stranded Wire Section (AWG)Stranded Wire Section (Metric)CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
DF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackageInputVCE max.
(V)
IF max.
(mA)
Test Condition CTRCTR min.
(%)
CTR max.
(%)
VISO
(V (RMS))
SW
(mm)
TiFlammability RatingApplicationInterface TypeMountIR
(A)
Pitch
(mm)
RowsColorPCB/Cable/PanelTol. R Samples
150080BS75000SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 470 Blue 465 145 3.2 InGaN 140 Tape and Reel 4000 0805 -40 °C up to +85 °C 2 1.25 0.7 SMT
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 Tape and Reel 4000 0805 -40 °C up to +85 °C 2 1.25 0.7 SMT
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 Tape and Reel 4000 0805 -40 °C up to +85 °C 2 1.25 0.7 SMT
150080AS75000SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 605 Amber 610 130 2 AlInGaP 140 Tape and Reel 4000 0805 -40 °C up to +85 °C SMT
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 Tape and Reel 4000 0805 -40 °C up to +85 °C 2 1.25 0.7 SMT
885012006053SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 400022 pF ±5% 50 0603 -55 °C up to +125 °C 84010 GΩ NP0 Class I 1.6 0.8 0.8 0.4
885012006054SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 400033 pF ±5% 50 0603 -55 °C up to +125 °C 100010 GΩ NP0 Class I 1.6 0.8 0.8 0.4
885012206085SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 40002.2 nF ±10% 50 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 1.6 0.8 0.8 0.4
885012206087SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 40004.7 nF ±10% 50 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 1.6 0.8 0.8 0.4
885012206088SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 40006.8 nF ±10% 50 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 1.6 0.8 0.8 0.4
885012206089SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 400010 nF ±10% 50 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 1.6 0.8 0.8 0.4
885012206093SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 400047 nF ±10% 50 0603 -55 °C up to +125 °C 310 GΩ X7R Class II 1.6 0.8 0.8 0.4
885012206094SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 400068 nF ±10% 50 0603 -55 °C up to +125 °C 37.4 GΩ X7R Class II 1.6 0.8 0.8 0.4
885012206095SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 4000100 nF ±10% 50 0603 -55 °C up to +125 °C 35 GΩ X7R Class II 1.6 0.8 0.8 0.4
885012207079SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC) 7" Tape & Reel 30002.2 µF ±10% 25 0805 -55 °C up to +125 °C 100.05 GΩ X7R Class II 2 1.25 1.25 0.5
885012207103SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 30001 µF ±10% 50 0805 -55 °C up to +125 °C 100.1 GΩ X7R Class II 2 1.25 1.25 0.5
885012208094SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel 20004.7 µF ±10% 50 1206 -55 °C up to +125 °C 100.02 GΩ X7R Class II 3.2 1.6 1.6 0.5
61900411121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Male Header Male 4 Vertical Tin 3 250 20 Bag -40 °C up to +105 °C1000 MΩ 10.16 THT 2.54 PCB max.
61900611121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Male Header Male 6 Vertical Tin 3 250 20 Bag -40 °C up to +105 °C1000 MΩ 15.24 THT 2.54 PCB max.
61900411621SPEC
4 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Female Terminal Housing Female 4 Terminal Housing Bag -40 °C up to +105 °C1000 MΩ 10.8 2.54 Beige Cable
61900611621SPEC
4 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Female Terminal Housing Female 6 Terminal Housing Bag -40 °C up to +105 °C1000 MΩ 15.7 2.54 Beige Cable
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 Female 30 Terminal Housing Bag -25 °C up to +85 °C1000 MΩ 33.4 2 Cable
62403021722SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.00 mm Male Header Male 30 Horizontal Tin 3 250 20 Tube -25 °C up to +85 °C1000 MΩ 33.4 THT 3 2 White PCB max.
970080365SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WA-SPAII Plastic Spacer Stud, metric, internal/ internal Bag -30 °C up to +110 °C 8 6 M3 UL94 HB Black
62400113722SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.00 mm Female Dual Row Crimp Contact Female Crimp Terminal 28 to 22 (AWG) 0.081 to 0.326 (mm²) Tin 3 250 20 Big Reel 10000 28 to 22 (AWG) 0.081 to 0.326 (mm²) -25 °C up to +85 °C 3 2 Cable max.
61910113722SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-WTB 2.54 mm Female Crimp Contact Female Crimp Terminal 28 to 22 (AWG) 0.081 to 0.326 (mm²) Tin 3 250 20 Small Reel 1000 28 to 22 (AWG) 0.081 to 0.326 (mm²) -40 °C up to +105 °C 3 2.54 Cable max.
60900213421SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD Jumper Jumper 1 Gold 3 250 20 Bag -40 °C up to +125 °C1000 MΩ 2.44 2.54 Black max.
61300211121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD Pin Header - Single Pin Header 2 Straight Gold 3 250 20 Bag -40 °C up to +105 °C1000 MΩ 5.08 THT 2.54 Single max.
61300311121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD Pin Header - Single Pin Header 3 Straight Gold 3 250 20 Bag -40 °C up to +105 °C1000 MΩ 7.62 THT 2.54 Single max.
61400416021SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-USB Standard Connectors Receptacle 4 Horizontal Selective Gold 1.5 30 20 Tray -40 °C up to +105 °C1000 MΩ USB 2.0 Type A THT 1.5 White max.
885012206102SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 7" Tape & Reel 4000100 pF ±10% 100 0603 -55 °C up to +125 °C 2.510 GΩ X7R Class II 1.6 0.8 0.8 0.4
885012206120SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 7" Tape & Reel100 nF ±10% 100 0603 -55 °C up to +125 °C 51 GΩ X7R Class II 1.6 0.8 0.8 0.4
885012209073SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel10 µF ±10% 50 1210 -55 °C up to +125 °C 100.01 GΩ X7R Class II 3.2 2.5 2.5 0.6
885012209071SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 100 V(DC) 7" Tape & Reel2.2 µF ±10% 100 1210 -55 °C up to +125 °C 50.05 GΩ X7R Class II 3.2 2.5 2.5 0.75
97790603211SPEC
3 files Active i| Production is active. Expected lifetime: >10 years.WA-SCRW Pan Head Screw w. cross slot M3 Bulk 2000 -30 °C up to +85 °C 6 UL94 V-0 Natural
885012206125SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC) 7" Tape & Reel220 nF ±5% 50 0603 -55 °C up to +125 °C 102.3 GΩ X7R Class II 1.6 0.8 0.8 0.4
140357145300SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WL-OCPT SOP-4 1.24 Optocoupler Phototransistor SOP4 -55 °C up to +110 °C 4.4 3.6 2 SOP 4 DC 35 60 IF = 5 mA
VCE = 5 V
200 400 3750 SMT
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
GenderPins
(pcs)
TypeWire SectionContact PlatingIR
(A)
Working Voltage
(V (AC))
Contact Resistance
(mΩ)
PackagingQty.
(pcs)
Stranded Wire Section (AWG)Stranded Wire Section (Metric)CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
DF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackageInputVCE max.
(V)
IF max.
(mA)
Test Condition CTRCTR min.
(%)
CTR max.
(%)
VISO
(V (RMS))
SW
(mm)
TiFlammability RatingApplicationInterface TypeMountIR
(A)
Pitch
(mm)
RowsColorPCB/Cable/PanelTol. R Samples