Overview
The MC33772BSP1AER2 is a Lithium-Ion battery cell controller IC designed and manufactured by NXP USA Inc. This integrated circuit is specifically tailored for automotive and industrial applications, including hybrid electric vehicles (HEV), electric vehicles (EV), energy storage systems (ESS), and uninterruptible power supply (UPS) systems. The MC33772BSP1AER2 is part of the MC33772 family, which offers robust and reliable battery management solutions with advanced features such as high-speed isolated communication and synchronized cell voltage and current measurements.
Key Specifications
| Parameter | Specification |
|---|---|
| Package Type | 48-HLQFP (7x7) |
| Operating Voltage | 5.0 V to 30 V, 42 V transient for TPL communication |
| Communication | Isolated 2 Mbps differential communication or 4 Mbps SPI |
| Cell Voltage Measurements | Up to six cell voltage (differential) measurements and stack voltage measurements |
| Current Measurement | Integrated current channel and coulomb counting |
| Temperature Sensors | Seven ADC/GPIO/temperature sensor inputs |
| Functional Safety | Supports ISO 26262 SafeAssure® functional safety |
| Data Acquisition Time | Fast data acquisition and communication to pack controller in 0.86 ms |
Key Features
- Integrated current channel and coulomb counting, reducing the bill of materials (BOM) for 14 V Li-ion battery applications.
- Synchronized cell voltage and current measurements, allowing for the determination of individual cell impedances in one shot.
- Optional high-speed isolated or SPI communication, supporting various battery management system topologies (centralized, distributed daisy chain, distributed CAN).
- High-speed (2 Mbit/s) isolated differential communication, enabling a transition from CAN to daisy chain without compromising communication speed.
- Robust ESD/EMC protection, reducing the need for external components and saving board space.
- Hot plug and random cell connection robustness, preventing pre-damaging of cells and devices during assembly.
- Functional verification and diagnostics, including checks for cell measure, current measure, cell terminal openings or leakage, and ADC precision.
Applications
- Automotive Applications: High-voltage battery management systems (200 V–800 V), 14 V Li-ion battery management systems.
- Industrial Applications: Energy storage systems (ESS), uninterruptible power supply (UPS) systems, e-bikes, and e-scooters.
Q & A
- What is the MC33772BSP1AER2 used for? The MC33772BSP1AER2 is used for managing Lithium-Ion battery cells in automotive and industrial applications.
- What are the key communication options for the MC33772BSP1AER2? The IC supports isolated 2 Mbps differential communication or 4 Mbps SPI.
- How many cell voltage measurements can the MC33772BSP1AER2 handle? It can handle up to six cell voltage (differential) measurements and stack voltage measurements.
- Does the MC33772BSP1AER2 support functional safety standards? Yes, it supports ISO 26262 SafeAssure® functional safety.
- What is the data acquisition time for the pack controller? The pack controller can acquire conversions from six cells, seven external temperatures, the current, and coulomb counter in 0.86 ms.
- What are the benefits of the integrated current channel and coulomb counting? These features reduce the bill of materials (BOM) for 14 V Li-ion battery applications and improve SoC/SoH prediction.
- Is the MC33772BSP1AER2 robust against ESD and EMC? Yes, it has robust ESD/EMC protection, reducing the need for external components.
- What are the typical applications of the MC33772BSP1AER2 in the automotive sector? High-voltage battery management systems (200 V–800 V) and 14 V Li-ion battery management systems.
- Can the MC33772BSP1AER2 be used in industrial applications? Yes, it is used in energy storage systems (ESS), uninterruptible power supply (UPS) systems, e-bikes, and e-scooters.
- How does the MC33772BSP1AER2 handle hot plug and random cell connections? It is designed with hot plug and random cell connection robustness to prevent pre-damaging of cells and devices during assembly.
