Overview
The MC33772BTC0AER2 is a Li-Ion battery cell controller IC designed by NXP USA Inc. for various automotive and industrial applications. This IC is part of the MC33772 family, which is tailored for use in hybrid electric vehicles (HEV), electric vehicles (EV), energy storage systems (ESS), and uninterruptible power supply (UPS) systems. The MC33772 series is known for its high integration and robust functional safety features, making it a reliable choice for demanding battery management systems (BMS).
Key Specifications
| Parameter | MC33772BTC0AE |
|---|---|
| Number of Channels | 0 (Battery Junction Box Controller) |
| Overvoltage/Undervoltage Protection | No |
| Number of GPIOs/AINx | 8 |
| Precision GPIO as Temperature Channels and OT/UT | Yes |
| Current Channel or Coulomb Counter | Yes |
| Supply Voltage Range (Max) | 6 V to 30 V (40 V transient) |
| Cell Input Voltage Range | -0.3 V to 5 V |
| Measurement Error | ± 0.8 mV (Vcell = 3.3 V, Ta = 25°C) |
| Functional Safety | ASIL C, ASIL D Compliance |
| Isolated Communication Speed | 2 Mbps |
| Communication Isolation | Inductive, Capacitive |
| Max Nodes per Daisy Chain | 63 |
| CRC Bit | 8 |
| Comms Bit | 48 |
| Integrated Balancing | <300 mA, Timer |
| Balancing Sleep Mode | Yes |
| GPIO / Analog Measurement Inputs | 8 |
| Package | 48-pin LQFP-EP (-40°C to 105°C) |
Key Features
- Battery Topology Flexibility: Scalable software and hardware BMS solution supporting 3 to 90 cells per daisy chain, with centralized, distributed daisy chain, and distributed CAN configurations.
- High Integration: Integrated power supply, balancing FETs (300 mA) with dedicated timers, and integrated current sensor (+-1500 A, 0.5% accuracy) with Coulomb counter.
- Fast Communication and Data Acquisition: Highly synchronized data acquisition with all cell voltages and currents measured within 100 μs, and 2 Mbps isolated communication.
- System Diagnostics and Functional Safety: Supports ISO 26262, with single-chip ASIL C capability up to ASIL D safety.
- Automotive Robustness: Compliant with AEC-Q100, ESD, EMC, hot plug, and ultra-low radiated emissions.
Applications
- Automotive Applications: High-voltage battery management systems (> 800 V), 14 V battery management systems, hybrid electric vehicles (HEV), and electric vehicles (EV).
- Industrial Applications: Energy storage systems (ESS), uninterruptible power supply (UPS) systems, e-bikes, and e-scooters.
Q & A
- What is the MC33772BTC0AER2 used for? The MC33772BTC0AER2 is used as a battery junction box controller in automotive and industrial applications such as HEV, EV, ESS, and UPS systems.
- What are the key safety features of the MC33772BTC0AER2? It supports ISO 26262 with ASIL C and up to ASIL D safety compliance, ensuring high functional safety.
- How many channels does the MC33772BTC0AER2 support? The MC33772BTC0AER2 does not support cell voltage channels but is designed as a battery junction box controller.
- What is the communication speed of the MC33772BTC0AER2? The isolated communication speed is 2 Mbps.
- What is the operating temperature range of the MC33772BTC0AER2? The operating temperature range is -40°C to 105°C.
- Does the MC33772BTC0AER2 have integrated balancing capabilities? Yes, it has integrated balancing FETs with dedicated timers.
- What is the package type of the MC33772BTC0AER2? It comes in a 48-pin LQFP-EP package.
- Is the MC33772BTC0AER2 compliant with automotive standards? Yes, it is compliant with AEC-Q100 and other automotive robustness standards.
- How many GPIOs does the MC33772BTC0AER2 have? It has 8 GPIOs/AINx.
- Does the MC33772BTC0AER2 support Coulomb counting? Yes, it supports Coulomb counting).
