产品概要
描述
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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性能一览
- 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
所有资源
| Resource title | 版本 | Latest update | Actions | Details | 下載 |
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Board Manufacturing Specifications (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| ZIP | 1.0 | 18 Sep 2026 | 18 Sep 2026 |
BOM (1)
| Resource title | 版本 | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.0 | 18 Sep 2026 | 18 Sep 2026 |
Quality and Reliability
| Part Number | Marketing Status | 符合RoHS级别 | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|
| EVL9988 | Active 产品已量产 | Not compliant | - | - | - | |
EVL9988
Package:
Not compliantMaterial Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
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Sample & Buy
| Part Number | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EVL9988 | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
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EVL9988 Active