Product overview
Description
The IC board integrates the L9988 BMS device, a complete solution for monitoring, balancing, and protecting battery packs composed of up to 4 series-connected Li-ion or Li-polymer cells, together with an SPC582B50E1 microcontroller, to provide a full system platform.
The L9988 continuously measures individual cell voltages, the total stack voltage, and temperature via external NTC thermistors with configurable timing.
The IC also features four high-side VGS pre-drivers to control two independent groups of back-to-back MOSFETs used as circuit breakers for safe battery pack connection management.
The L9988 delivers very low power consumption, hot-plug robustness, and comprehensive protection mechanisms for reliable battery management in automotive and industrial applications.
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All features
- Measurement of 4 single-cell voltages, withover/undervoltage detection
- Measurement of stack voltage, with over/undervoltage detection and plausibility check vs. sum of cells
- Measurement of battery current (range ± 1500 A), with overcurrent protection
- Measurement of Coulomb counting for SoC estimation
- Continuous short-circuit detection
- Passive cell balancing (max 200 mA) supporting time-continuous and PWM modes, with synchronized odd-even channels balance
- Measurement of battery pack temperature through an externalNTC, with OT/UT detection
- Configurable double watchdog (Q&A WD and time-windowedWD)
- Separate the charge (CHG) and discharge (DCHG) controlpaths by integrating a dual high-side VGS pre-driver: one channel drives the discharge high-sidedriver, while an external pre-driver independently controls the charge high-side driver
- Integrated PMIC with configurable regulators (BOOST, VCORE, VCC, CAN, VSTBY, VTREF regulators)
- The possibility to interface the device via SPI from theMCU located on the EVL998 board
All resources
| Resource title | Version | Latest update | Actions | Details | Download |
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Board Manufacturing Specifications (1)
| Resource title | Version | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| ZIP | 1.0 | 18 Sep 2026 | 18 Sep 2026 |
Bill of Materials (1)
| Resource title | Version | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.0 | 18 Sep 2026 | 18 Sep 2026 |
Quality and Reliability
| Part Number | Marketing Status | RoHS Compliance Grade | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|
| EVL9988 | Active Product is in volume production. | Not compliant | - | - | - | |
EVL9988
Package:
Not compliantMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EVL9988 | | | distributors No availability of distributors reported, please contact our sales office |
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EVL9988 Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors