Overview
The MC33772BTP1AER2 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 MC33772BTP1AER2 is part of NXP's comprehensive battery management solutions, ensuring reliable, safe, and cost-effective Li-ion cell control.
Key Specifications
| Parameter | Description |
|---|---|
| Package | 48-LQFP Exposed Pad |
| Operating Temperature | -40°C to 125°C |
| Number of Cells | 3 to 6 cells |
| Power Supply Voltage | 5.0 V (7.0 V for TPL) < VPWR < 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 Inputs | Seven ADC/GPIO/temperature sensor inputs |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
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 with a single analog front end (AFE), enabling determination of individual cell impedances in one shot.
- Optional high-speed isolated or SPI communication, supporting centralized, distributed daisy chain, and high-speed daisy chain topologies.
- Fast data acquisition and communication to the pack controller, achieving conversions from six cells, seven external temperatures, the current, and coulomb counter in 0.86 ms.
- Hot plug and random cell connection robustness, preventing pre-damaging of cells and devices during assembly.
- ESD/EMC robustness, reducing the need for external components and thus BOM and board space.
- Supports ISO 26262 SafeAssure® functional safety with integrated functional verification and diagnostics.
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 primary function of the MC33772BTP1AER2 IC?
The MC33772BTP1AER2 is a lithium-ion battery cell controller IC designed for managing Li-ion battery cells in automotive and industrial applications.
- What is the operating temperature range of the MC33772BTP1AER2?
The operating temperature range is -40°C to 125°C.
- How many cells can the MC33772BTP1AER2 manage?
The IC can manage 3 to 6 Li-ion battery cells.
- What communication protocols does the MC33772BTP1AER2 support?
The IC supports isolated 2 Mbps differential communication or 4 Mbps SPI.
- Does the MC33772BTP1AER2 comply with environmental regulations?
Yes, it is ROHS3 compliant and meets the EU Directives RoHS, ELV, and the China RoHS.
- What is the package type of the MC33772BTP1AER2?
The package type is 48-LQFP Exposed Pad.
- How does the MC33772BTP1AER2 ensure functional safety?
The IC supports ISO 26262 SafeAssure® functional safety with integrated functional verification and diagnostics.
- What are the key benefits of using the MC33772BTP1AER2 in battery management systems?
The key benefits include reduced BOM, fast data acquisition, high-speed communication, and robust ESD/EMC protection.
- Can the MC33772BTP1AER2 be used in hot plug and random cell connection scenarios?
Yes, it is designed to handle hot plug and random cell connections without damaging the cells or devices.
- How does the MC33772BTP1AER2 measure cell impedances?
The IC can determine individual cell impedances in one shot, synchronized with cell voltage and current measurements.
