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Overview
| Topology | Battery Management System |
| IC revision | 1.0 |
Description
The STEVAL-BMS1T is a SPI to isolated SPI dongle, which allows converting SPI signals into isolated SPI signals, thus reducing the number of necessary wires from 4 to 2.The ISOSPI protocol features differential communication to ensure higher noise immunity and robustness for long-distance communications.The STEVAL-BMS1T is based on the L99BM1T general-purpose SPI to isolated SPI bidirectional transceiver, which can transfer communication data incoming from a classical 4-wire based SPI interface to a 2-wire isolated interface (and vice versa).The L99BM1T hosted on the STEVAL-BMS1T can be configured either as a slave or as a master of the SPI bus and supports any protocol of 8-to-64-bit SPI frames.The SPI peripheral can work up to 10 MHz when configured as a slave. The SPI clock frequency can be programmed (250 kHz, 1 MHz, 4 MHz, or 8 MHz) when the device is configured as a master.The transceiver is natively compatible with the L99BM114 isolated SPI, allowing its usage in battery management system (BMS) applications. The basic BMS analog front-end node board is the STEVAL-BMS114.From the microcontroller side, the STEVAL-BMS1T board can be connected via SPI with SPI enabled microcontrollers and in particular with STM32 microcontroller families.
Features
Hosts the L99BM1T general purpose SPI to isolated SPI bi-directional transceiverMaster/slave configuration through GPIOs or jumpers4 configurable pins for the SPI protocol2 configurable pins for amplitude and frequency of the converted signal (ISOSPI)Dimensions: 85mm x 30mm
Typical applications
- Energy generation and distribution
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | Gender | Pins | Variant | Type | Wire Section | Contact Plating | IR(A) | Working Voltage(V (AC)) | Contact Resistance(mΩ) | Packaging | Qty.(pcs) | Stranded Wire Section (AWG) | Stranded Wire Section (Metric) | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | Q(%) | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | SW(mm) | Ti | Flammability Rating | Interface Type | Mount | PCB Thickness(mm) | Color | IR(A) | PCB/Cable/Panel | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 470 nm, Blue | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]470 nm | Emitting ColorBlue | Peak Wavelength [typ.]465 nm | Luminous Intensity [typ.]145 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | Packaging Unit4000 pcs | – | – | – | – | – | Size0805 | Operating Temperature -40 °C up to +85 °C | – | – | – | – | Length2 mm | Width1.25 mm | Height0.7 mm | – | – | – | – | – | MountSMT | – | – | – | – | ||||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Green | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]525 nm | Emitting ColorGreen | Peak Wavelength [typ.]515 nm | Luminous Intensity [typ.]450 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | Packaging Unit4000 pcs | – | – | – | – | – | Size0805 | Operating Temperature -40 °C up to +85 °C | – | – | – | – | Length2 mm | Width1.25 mm | Height0.7 mm | – | – | – | – | – | MountSMT | – | – | – | – | ||||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 590 nm, Yellow | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]590 nm | Emitting ColorYellow | Peak Wavelength [typ.]595 nm | Luminous Intensity [typ.]120 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | Packaging Unit4000 pcs | – | – | – | – | – | Size0805 | Operating Temperature -40 °C up to +85 °C | – | – | – | – | Length2 mm | Width1.25 mm | Height0.7 mm | – | – | – | – | – | MountSMT | – | – | – | – | ||||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 605 nm, Amber | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]605 nm | Emitting ColorAmber | Peak Wavelength [typ.]610 nm | Luminous Intensity [typ.]130 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | Packaging Unit4000 pcs | – | – | – | – | – | Size0805 | Operating Temperature -40 °C up to +85 °C | – | – | – | – | – | – | – | – | – | – | – | – | MountSMT | – | – | – | – | ||||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 625 nm, Red | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]625 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | Luminous Intensity [typ.]150 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | Packaging Unit4000 pcs | – | – | – | – | – | Size0805 | Operating Temperature -40 °C up to +85 °C | – | – | – | – | Length2 mm | Width1.25 mm | Height0.7 mm | – | – | – | – | – | MountSMT | – | – | – | – | ||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Packaging7" Tape & Reel | Packaging Unit4000 pcs | – | – | Capacitance22 pF | Capacitance±5% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Q-Factor840 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Packaging7" Tape & Reel | Packaging Unit4000 pcs | – | – | Capacitance10 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Packaging7" Tape & Reel | Packaging Unit4000 pcs | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | – | – | – | – | – | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Packaging7" Tape & Reel | Packaging Unit3000 pcs | – | – | Capacitance1 µF | Capacitance±10% | Rated Voltage50 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor10 % | Insulation Resistance0.1 GΩ | Ceramic TypeX7R Class II | Length2 mm | Width1.25 mm | Height1.25 mm | Pad Dimension0.5 mm | – | – | – | – | – | – | – | – | – | |||||
 | WR-WTB 2.54 mm Male Header, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-WTB 2.54 mm Male Header | – | – | – | – | – | – | – | GenderMale | Pins4 | – | TypeVertical | – | Contact PlatingTin | Rated Current3 A | Working Voltage250 V (AC) | Contact Resistance20 mΩ | PackagingBag | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length10.16 mm | – | – | – | – | – | – | – | MountTHT | – | – | – | PCB/Cable/PanelPCB | ||
 | WR-WTB 2.54 mm Male Header, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-WTB 2.54 mm Male Header | – | – | – | – | – | – | – | GenderMale | Pins7 | – | TypeVertical | – | Contact PlatingTin | Rated Current3 A | Working Voltage250 V (AC) | Contact Resistance20 mΩ | PackagingBag | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length17.78 mm | – | – | – | – | – | – | – | MountTHT | – | ColorBeige | Rated Current3 A | PCB/Cable/PanelPCB | ||
 | WR-WTB 2.54 mm Female Terminal Housing, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-WTB 2.54 mm Female Terminal Housing | – | – | – | – | – | – | – | GenderFemale | Pins4 | – | TypeTerminal Housing | – | – | – | – | – | PackagingBag | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length10.8 mm | – | – | – | – | – | – | – | – | – | ColorBeige | – | PCB/Cable/PanelCable | |||
 | WR-WTB 2.54 mm Female Terminal Housing, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-WTB 2.54 mm Female Terminal Housing | – | – | – | – | – | – | – | GenderFemale | Pins7 | – | TypeTerminal Housing | – | – | – | – | – | PackagingBag | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length18.3 mm | – | – | – | – | – | – | – | – | – | ColorBeige | – | PCB/Cable/PanelCable | |||
 | WA-SPAII Plastic Spacer Stud, metric, internal/ internal, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SPAII Plastic Spacer Stud, metric, internal/ internal | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | PackagingBag | – | – | – | – | – | – | – | Operating Temperature -30 °C up to +110 °C | – | – | – | – | Length8 mm | – | – | – | SW6 mm | Inner ThreadM3 | Flammability RatingUL94 HB | – | – | – | ColorBlack | – | – | |||
 | WR-WTB 2.54 mm Female Crimp Contact, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-WTB 2.54 mm Female Crimp Contact | – | – | – | – | – | – | – | GenderFemale | – | – | TypeCrimp Terminal | Wire Section 28 to 22 (AWG) 0.081 to 0.326 (mm²) | Contact PlatingTin | Rated Current3 A | Working Voltage250 V (AC) | Contact Resistance20 mΩ | PackagingSmall Reel | Packaging Unit1000 pcs | Stranded Wire Section (AWG)28 to 22 (AWG) | Stranded Wire Section (Metric)0.081 to 0.326 (mm²) | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Current3 A | PCB/Cable/PanelCable | |||
 | WR-PHD Jumper, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | – | – | – | – | – | – | GenderJumper | Pins1 | – | – | – | Contact PlatingGold | Rated Current3 A | Working Voltage250 V (AC) | Contact Resistance20 mΩ | PackagingBag | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | Insulation Resistance1000 MΩ | – | Length2.44 mm | – | – | – | – | – | – | – | – | – | ColorBlack | – | – | |||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | – | – | – | GenderPin Header | Pins2 | – | TypeStraight | – | Contact PlatingGold | Rated Current3 A | Working Voltage250 V (AC) | Contact Resistance20 mΩ | PackagingBag | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length5.08 mm | – | – | – | – | – | – | – | MountTHT | – | – | – | – | |||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | – | – | – | GenderPin Header | Pins3 | – | TypeStraight | – | Contact PlatingGold | Rated Current3 A | Working Voltage250 V (AC) | Contact Resistance20 mΩ | PackagingBag | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | Length7.62 mm | – | – | – | – | – | – | – | MountTHT | – | – | – | – | |||
 | WR-USB Standard Connectors, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Standard Connectors | – | – | – | – | – | – | – | GenderPlug | Pins4 | Variantwith Clips | TypeHorizontal | – | Contact PlatingSelective Gold | Rated Current1.5 A | Working Voltage30 V (AC) | Contact Resistance20 mΩ | PackagingTube | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | – | – | – | – | – | – | – | Interface TypeType A | MountSMT | PCB Thickness1.2 mm | – | – | – | |||
 | WA-SCRW Pan Head Screw w. cross slot M3, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SCRW Pan Head Screw w. cross slot M3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | PackagingBulk | Packaging Unit2000 pcs | – | – | – | – | – | – | Operating Temperature -30 °C up to +85 °C | – | – | – | – | Length4 mm | – | – | – | – | – | Flammability RatingUL94 V-2 | – | – | – | ColorNatural | – | – |