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MC33771C Chip Shot
The MC33771C is a Li-Ion battery cell controller IC designed for automotive and industrial applications such as HEV, EV, ESS, UPS systems. Featuring:
- ADC conversions on the differential cell voltages with averaging up to 256 samples and currents as well as coulomb counting and temperature measurements.
- Embedded balancing transistors and diagnostics to simplify applications.
- Support standard SPI and transformer isolated daisy chain communication (with MC33664) to an MCU for processing and control up to 63 nodes in one daisy chain.
- Loopback support for one daisy chain
Product Details
- Block Diagram
- Features
- Comparison Table
- Battery Management Systems (BMS) Hardware Solutions
- SafeAssure Program
- Related Products
- Applications
Features
Supply Voltage
- 9.6 V ≤ VPWR ≤ 61.6 V operation, 75 V transient
Advanced Voltage and Temperature Measurement
- 14 Cell Voltage Measurement Channels with integrated averaging possible up to 256 samples – (no averaging for MC33771B)
- 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
- Inductive and capacitive coupling support –(only transformer coupling for MC33771B)
- Up to 63 nodes in one daisy chain – (15 nodes for MC33771B)
- Loopback support for 1 daisy chain – (no loopback capability for MC33771B)
- 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. MC33771C is included in the 15-year program.
Part numbers include: MC33771CTA1AE, MC33771CTA2AE, MC33771CTP1AE, MC33771CTP2AE.
Comparison Table
| Parameter | MC33771B | MC33771C | MC33772B | MC33772C |
| Voltage Channels | 7..14 | 7..14 | 3..6 | 3..6 |
| Supply VRange (Max) | 9.6 V..61.6 V (75 V) | 9.6 V..61.6V (75 V) | 6 V..30 V (40 V) | 6 V..30 V (40 V) |
| Cell Input Voltage Range | -0.3 V to 5 V | -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) | ± 0.8 mV (Vcell =3.3 v Ta = 25°c) |
| Total Measurement Error (After aging: MLS3 and 1000h HTOL) | ± 3.9 mV | ± 3.9 mV | ± 3.9 mV | ± 3.9 mV |
| 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 | Vpwr=6V..30V, Vcell=1.5V..4.3V, -40~85°C | Vpwr=6V..30V, Vcell=1.5V..4.3V, -40~85°C | |
| Measurement averaging | No | Configurable Averaging Samples 2ⁿ n=0..8, (1,2,4,..256) | 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 | ASIL C ASIL D Compliance |
| Isolated communication Speed | 2 Mbps | 2 Mbps | 2 Mbps | 2 Mbps |
| Communication Isolation | Inductive | Inductive, Capacitive | Inductive | Inductive, Capacitive |
| Max Nodes per Daisy Chain | 15 | 63 | 15 | 63 |
| CRC Bit | 8 | 8 | 8 | 8 |
| Comms bit | 40 | 48 | 40 | 48 |
| Integrated Balancing | <300 mA, Timer | <300 mA, Timer | <300 mA, Timer | <300 mA, Timer |
| Balancing sleep mode | Yes | Yes | Yes | Yes |
| GPIO / Analog measurement inputs | 7 | 7 | 7 | 7 |
| I²C Controller | EEPROM Only | EEPROM Only | EEPROM Only | EEPROM Only |
| Current Channels | 1 | 1 | 1 | 1 |
| Coulomb counter | 1 | 1 | 1 | 1 |
| Package | 64-pin LQFP-EP (-40~105°C) | 64-pin LQFP-EP (-40~105°C) | 48-pin LQFP-EP (-40~105°C) | 48-pin LQFP-EP (-40~105°C) |
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.
Find your right solution.
SafeAssure Program
When it comes to functional safety, NXP stands for quality and reliability. Our SafeAssure program simplifies system-level safety requirements in accordance with ISO 26262.
Read more
Related products
MC33772B
Active
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6-Channel Li-Ion Battery Cell Controller IC
- Data Sheet:
MC33771B
Active
- Similar
14-Channel Li-Ion Battery Cell Controller IC
- Data Sheet:
Applications
Automotive
- Battery Management System (BMS)
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Documentation
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1-5 of 10 documents
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Data Sheet
MC33771C, Battery Cell Controller IC Data Sheet
PDFRev 7.0Jul 16, 20243.6 MBMC33771CEnglish
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Application Note
AN12969 Busbar Design Application Note
PDFRev 2May 15, 2023362.6 KBAN12969English, 中文
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Application Note
AN12710, Layout Recommendation for Battery Cell Controllers Application Note
PDFRev 2Apr 19, 20233.4 MBAN12710English, 中文
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Application Note
AN12637: MC33771C and MC33772C Based System Timing Optimization Application Note
PDFRev 4Apr 18, 20238.0 MBAN12637English
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Application Note
AN12626: MC33771x/MC33772x Transformer and Wire Guide on the TPL Network Application Note
PDFRev 2Apr 18, 2023491.5 KBAN12626English, 中文
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Application Note
AN13032, MC33771/2 B/C General Purpose Input Output (GPIO) Application Note
PDFRev 1Dec 18, 2020281.0 KBAN13032English
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Application Note
AN12576, MC33771x/MC33772x Hot Plug Performance and Prevention Measures Application Note
PDFRev 1Apr 13, 20202.2 MBAN12576English
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Application Note
AN12633, Switching from MC33771B to MC33771C Application Note
PDFRev 1Feb 10, 2020444.4 KBAN12633English
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Application Note
AN12536, Using MC33771 with Less than 14 Cells Application Note
PDFRev 1Oct 30, 2019307.0 KBAN12536English
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Product Brief
MC33771C Battery cell controller IC - Product Brief
PDFRev 2.0May 10, 2022907.3 KBPB_MC33771CEnglish
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Design Files
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Hardware
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Complete Solution
MPC5775B BMS and VCU Reference Design
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Design Concept
S32E2 Propulsion Domain Controller (POC)
S32E2POC
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Embedded Board Solutions
Embedded SW: Battery Cell Controller Software Driver for MC33771C and MC33772C
EMBEDDED-SW-MC33771C
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Evaluation and Development Boards
Evaluation Board for MC33664ATL Isolated Network High-Speed Transceiver
FRDMDUAL33664EVB
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Evaluation and Development Boards
Battery Management System (BMS) Communication Monitoring and Debugging Toolkit
KIT-TPLSNIFEVB
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Evaluation and Development Boards
MPC5775B and MC33771 high-voltage BMS Evaluation System
MPC5775B-BATTERYSYSTEM
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Evaluation and Development Boards
Evaluation Board for MC33771C with SPI Communication
FRDM33771CSPEVB
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Battery Emulator Extender
BATT-14EXTENDER
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Evaluation and Development Boards
Evaluation Board for MC33771C BCC with Isolated Daisy Chain Communication
RD33771CDSTEVB
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Evaluation and Development Boards
Evaluation Board for MC33664ATL Isolated Network High-Speed Transceiver
FRDMDUALK3664EVB
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Reference Design
Flexible Battery Management System (BMS) Reference Design
RD33771CNTREVM
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Middleware
MC33771C/MC33772C (Battery Cell Controller) Evaluation GUI
EXERev 5.15Jul 8, 2022 13:28:0036.3 MBKIT3377xC_APPSP
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Battery Management Systems 101: Getting Started with NXP System Solutions
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Simplify Your High-Voltage BMS Application Design with Ready-to-Use NXP Solutions
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