Product overview
Description
The L9965A/L99BM218 is an 18-channel battery cell monitoring and balancing IC.
The device belongs to the L9965/L99BM2 chipset family for high-voltage battery management system monitoring and control (automotive/industrial respectively).
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All features
- Temperature grade 1: –40°C to +125°C operating temperature range
- HBM ESD classification level 2
- CDM ESD classification level C4B
- Fully synchronizedhigh-accuracymeasurements on cell voltage, busbar and stack voltage with dedicated ADC:
- Total error including aging and post soldering <1.4 mV at 3.3 V, -40°C to 105°C
- 16-bit resolution
- Cell range: -1 V to 5.5 V
- 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 a ±1 V range
- Passive internal cell balancing up to 400mA, supporting time-continuous and PWM modes, with automatic cool down based onexternal NTC sensing. Overcurrent protection during balancing is also available inlow-powermode.
- IntegratedDC-DCconverter for energy efficiency:
- Deep sleep: <12 µA
- Cyclic Wake-up Mode: <20 µA
- Normal Mode: <3 mA
- 10 configurable GPIO
- SPIcontrollerand I2Ccontrollerperipherals for interfacing external EEPROMs and sensors
- SPItargetfor direct MCU interface
- Stackable architecture forhigh-voltagebattery packs up to 59 devices
- Embedded NVM for configurationparameter storageand runtime configuration integrity check
- Ultra-fast vertical interface peripheral for isolated communication
- Compatible with L9965C pack monitoring chip with a maxdesynchronizationtime of 7µsat system level
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L9965A
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| L9965A | Proposal | TQFP 64 10x10x1.0 1.0 ExPad Down | Industrial | - | - | - | |
| L9965A-TR | Active | TQFP 64 10x10x1.0 | Automotive Safety | Ecopack2 | - | - | |
L9965A
Package:
TQFP 64 10x10x1.0 1.0 ExPad DownMaterial Declaration**:
L9965A-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.
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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) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L9965A-TR | | | distributors No availability of distributors reported, please contact our sales office | ||||||||||
| L9965A | | | distributors No availability of distributors reported, please contact our sales office |
L9965A-TR Active
L9965A Proposal
(*) 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