Product overview
Description
L99BM218 is a 18 channel battery cells monitoring and balancing IC.
The device belongs to the L99BM2 chipset family for high voltage battery management systems monitoring and control.
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All features
- -40°C to +125°C operating temperature range
- HBM ESD classification level 2
- CDM ESD classification level C4B
- Fully synchronized high accuracy measurements on cell voltage, and module voltage with dedicated ADC:
- Total error including ageing and post soldering <1.4 mV at 3.3V, -40°C to 105°C
- 16-bit resolution
- Cell range: -1 to 5.5V
- Integrated digital filtering with programmable cut-off frequency from 3.3 kHz to 4.4 Hz
- Fully redundant architecture
- Cell and busbar support on every channel
- Dedicated busbar channel with ±1V range
- Passive internal cell balancing up to 400mA, supporting time-continuous and PWM modes, with automatic cool down based on external NTC sensing. Overcurrent protection during balancing available also in low power mode
- Integrated DCDC converter for energy efficiency:
- Normal Mode: <2mA
- 10 configurable GPIO
- SPI Controller and I2C Controller peripherals for interfacing external EEPROMs and sensors
- SPI Target for direct MCU interface
- Stackable architecture for high voltage battery packs up to 59 devices
- Embedded NVM for configuration parameters storage and runtime configuration integrity check
- Ultra-fast vertical interface peripheral for isolated communication
- Compatible with L99BM2C pack monitoring chip with a max de-synchronization time of 7 us at system level
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L99BM218
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| L99BM218-TR | Active | TQFP 64 10x10x1.0 | Industrial | Ecopack2 | - | - | |
L99BM218-TR
Package:
TQFP 64 10x10x1.0Material 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.
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) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L99BM218-TR | | | distributors No availability of distributors reported, please contact our sales office |
L99BM218-TR 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