Audio
Interfaces
Peripherals and Logic
Power Management
Sensors
RF
RFID/NFC
Security and Authentication
Wireless Connectivity
Browse all products
Product Information
Application-Specific Products
NXP Community
Design ideas, demo videos, quality answers. Connect with NXP professionals and other knowledgeable designers ready to help.
Design Resources
Software, documentation, evaluation tools. The resources to build comprehensive solutions and accelerate your time to market.
Access our design resource library
Careers at NXP
We're always looking for passionate and talented people to work with us.
Join our teamMC33772B: 6-Channel Li-ion Battery Cell Controller IC
Overview
Features
Features
Supply Voltage
- 7.0 V ≤ VPWR ≤ 30 V operation, 42 V transient (daisy chain mode)
- 5.0 V ≤ VPWR ≤ 30 V operation, 42 V 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 300 mA 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
- 4 Mbps 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
Product Longevity Program
- This product is included in the NXP Product Longevity program ensuring a stable supply of products for your embedded designs. MC33772B is included in the 15-year program
Key Parametrics
-
- Cell Voltage Measurement Channel
- 3to4, 3to6
-
- Cell OV/UV
- no, yes
-
- Cell Balancing
- no, yes
-
- Coulomb Count
- no, yes
Development Boards and Designs
FRDMDUAL33664EVB:Evaluation Board for MC33664ATL Isolated Network High-Speed Transceiver
NEWTEC-NTBMS:NewTec battery management system (BMS) reference design
FRDM33664BEVB:Evaluation Board for MC33664ATL Isolated Network High-Speed Transceiver
FRDM33772BSPIEVB:Evaluation Board for MC33772 with SPI CommunicationDevelopment Boards and Designs
FRDMDUAL33664EVB:Evaluation Board for MC33664ATL Isolated Network High-Speed TransceiverNEWTEC-NTBMS:NewTec battery management system (BMS) reference designFRDM33664BEVB: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
FRDM33772BTPLEVB:Evaluation Board for MC33772 with Isolated Daisy Chain Communication
BATT-14AAAPACK:Configurable Battery Pack to supply the MC33771/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)
Comparison Table
| Parameter | MC33772B | MC33771B | MC33771C |
| Voltage Channels | 3..6 | 7..14 | 7..14 |
| Supply VRange (Max) | 6 V..30 V (40 V) | 9.6 V..61.6 V (75 V) | 9.6 V..61.6V (75 V) |
| Cell Input Voltage Range | -0.3 V to 5 V | -0.3 V to 5 V | -0.3 V to 5 V |
| Measurement Error | ± 0.8 mV (Vcell =3.3 v Ta = 25°c) | ± 0.8 mV (Vcell =3.3 v Ta = 25°c) | ± 0.8 mV (Vcell =3.3 v Ta = 25°c) |
| Total Measurement Error (After aging: MLS3 & 1000h HTOL) |
± 3.9 mV | ± 3.9 mV | ± 3.9 mV |
| Vpwr=6V..30V, Vcell=1.5V..4.3V, -40~85°C |
Vpwr=9.6V..61.6V, Vcell=1.5V..4.3V, -40~85°C |
Vpwr=9.6V..61.6V, Vcell=1.5V..4.3V, -40°C..85°C |
|
| Measurement averaging | No | No | Configurable Averaging Samples 2n n=0..8, (1,2,4,..256) |
| Functional Safety |
ASIL C ASIL D Compliance |
ASIL C ASIL D Compliance |
ASIL C ASIL D Compliance |
| Isolated communication Speed | 2 Mbps | 2 Mbps | 2 Mbps |
| Communication Isolation | Inductive | Inductive | Inductive, Capacitive |
| Max Nodes per Daisy Chain | 15 | 15 | 63 |
| CRC Bit | 8 | 8 | 8 |
| Comms bit | 40 | 40 | 48 |
| Integrated Balancing | <300 mA, Timer | <300 mA, Timer | <300 mA, Timer |
| Balancing sleep mode | Yes | Yes | Yes |
| GPIO / Analog measurement inputs | 7 | 7 | 7 |
| I2C Master | EEPROM Only | EEPROM Only | EEPROM Only |
| Current Channels | 1 | 1 | 1 |
| Coulomb counter | 1 | 1 | 1 |
| Package | 48-pin LQFP-EP (-40~105°C) | 64-pin LQFP-EP (-40~105°C) | 64-pin LQFP-EP (-40~105°C) |
Complementary products for your application
Battery Management Systems (BMS) Hardware Solutions
Battery management systems (BMS) solutions for automotive and industrial applications including 12 V, 48 V, high-voltage and battery pack monitoring applications.