MC33772B: 6-Channel Li-ion Battery Cell Controller IC
Overview
Features
Features
Supply Voltage
- 7.0V ≤ VPWR ≤ 30V operation, 42V transient (daisy chain mode)
- 5.0V ≤ VPWR ≤ 30V operation, 42V transient (SPI mode)
Advanced Voltage and Temperature Measurement
- 6 Cell Voltage Measurement Channels
- Total Stack Voltage Measurement
- 0.8 mV maximum total voltage measurement error
- 7 ADC/GPIO/Temperature Sensor Inputs
Synchronized Advanced Current Measurement
- Integrated Current sensor with PGA
- ±0.5% accuracy from milliamps to kiloamps
- Integrated Coulomb Counter
Onboard Passive Balancing
- Onboard 300mA Low Rdson passive cell balancing MOSFETs with diagnostics
- Balancing in Sleep mode
- Programmable balancing timer for each MOSFET
Isolated Daisy Chain or SPI communication
- 2.0 Mbps, 2 wire twisted pair differential, isolated
- Addressable on initialization
- 4Mbps SPI
Diagnostics, Functional Safety and Robustness
- OV/UV, OT/UT, OC fault verification
- Sleep mode OV/UV, OT/UT monitoring
- Support ISO 26262, up to ASIL D safety capability
- Hot plug capable and AEC Q-100
Key Parametrics
-
- Cell Voltage Measurement Channel
- 3.0 to 6, 3.0 to 4
-
- Cell OV/UV
- yes, no
-
- Cell Balancing
- yes, no
-
- Coulomb Count
- yes, no
-
- Supply Voltage [Min to Max] (V)
- 7.0 to 30, 3.0 to 4, 3.0 to 6
Development Boards
BATT-14AAAPACK:
Configurable Battery Pack to supply the MC33771/MC33772 EVB’s
FRDM33772BTPLEVB:
Evaluation Board for MC33772 with Isolated Daisy Chain Communication
FRDM33664BEVB:
Evaluation Board for MC33664ATL Isolated Network High-Speed Transceiver
FRDM33772BSPIEVB:
Evaluation board for MC33772 with SPI CommunicationDevelopment Boards
BATT-14AAAPACK:
Configurable Battery Pack to supply the MC33771/MC33772 EVB’sFRDM33772BTPLEVB:
Evaluation Board for MC33772 with Isolated Daisy Chain CommunicationFRDM33664BEVB:
Evaluation Board for MC33664ATL Isolated Network High-Speed TransceiverFRDM33772BSPIEVB:
Evaluation board for MC33772 with SPI Communication
BATT-6EMULATOR:
6-cell Battery Pack to supply MC33772 EVB’s.
Target Applications
Automotive
- 14 V Li-ion battery management system
- Battery Management System
- High-voltage battery management systems (> 800 V)
Industrial
- E-bikes, E-scooters
- Energy storage systems (ESS)
- Uninterrupted power supply (UPS)