Product overview
Description
The L9965C is a current, voltage, charge and isolation monitor for HV battery packs.
It is part of the L9965 chipset for battery management systems and can be inserted as an addressable element of the same isolated daisy chain (VIF).
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All features
- AEC-Q100 qualification ongoing
- Temperature grade 1: -40 °C to +125 °C operating temperature range
- HBM ESD classification level 2
- CDM ESD classification level C4B
- Full ISO26262 compliant, ASIL-D systems ready, documentation available
- 2 independent current sense ADCs
- 18-bit resolution
- Input range = ±100 mV
- < 0.1% gain error, < 1 LSB offset
- Integrated programmable digital filtering with cutoff frequency from 3.5 kHz to 5 Hz for instantaneous current measurement
- Fully redundant architecture with cross-check on every current sample
- Integrated coulomb counter
- Fully redundant short circuit detector with programmable threshold and ultrafast reaction time
- 2 programmable (level/PWM encoded) FAULT outputs
- Programmable DC-DC converter controller to enable fast and flexible DC-link precharge
- 10 gate predrivers also compatible with optocouplers
- 11 fully differential analog inputs
- 7 configurable GPIO
- SPI and I2C controller peripherals to interface up to two external EEPROM, L9965P pyro driver, sensors
- SPI target for direct MCU interface
- 3.3 V (VTREF) and 5 V (V5V) LDOs for external sensors supply and biasing
- Embedded NVM for configuration parameters storage and runtime configuration integrity check
- Ultrafast vertical interface peripheral for isolated communication
- Compatible with 18S L9965A cell monitoring chip with a max desynchronization time of 7 us at system level
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L9965C
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| L9965C | Active | TQFP 48 7x7x1.0 | Automotive Safety | Ecopack2 | - | - | |
| L9965C-TR | Active | TQFP 48 7x7x1.0 | Automotive Safety | Ecopack2 | - | - |
(**) 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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L9965C | | | distributors No availability of distributors reported, please contact our sales office | ||||||||||
| L9965C-TR | | | distributors No availability of distributors reported, please contact our sales office |
L9965C Active
L9965C-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