Overview
The MC33772BTP1AE is a lithium-ion battery cell controller IC designed by NXP USA Inc. for use in automotive and industrial applications. This integrated circuit is part of the MC33772 family and is tailored for high-voltage battery management systems, energy storage systems (ESS), uninterruptible power supply (UPS) systems, and other mission-critical applications. It supports centralized, distributed, and daisy chain topologies, ensuring reliable and safe Li-ion cell control.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 48-LQFP Exposed Pad |
| Number of Cells Supported | 3 ~ 6 |
| Operating Temperature | -40°C ~ 125°C |
| Power Supply Voltage | 5.0 V (7.0 V for TPL) < VPWR < 30 V, 42 V transient for TPL |
| Communication | Isolated 2 Mbps differential communication or 4 Mbps SPI |
| Cell Voltage Measurements | Up to six cell voltage (differential) measurements and stack voltage measurements |
| ADC/GPIO/Temperature Sensor Inputs | Seven |
| Cell Balancing | Onboard 300 mA passive cell balancing with low ohmic MOSFETS and diagnostics |
| Functional Safety | Designed to support ISO 26262, up to ASIL D safety capability |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
Key Features
- Synchronized cell voltage and current measurements with coulomb counting
- High-speed and robust daisy chain communication as an alternative to CAN solutions
- Fast data acquisition and communication, with pack controller data acquisition in 0.86 ms
- Determination of individual cell impedances in one shot, synchronized for cell voltages and current measurements at 113 µs
- Functional verification and diagnostics, including cell measure, current measure, cell terminal openings or leakage, and ADC precision checks
- Addressable on initialization
- Low-power modes
- Robust, reliable analog solutions
Applications
- Automotive applications: High-voltage battery management systems (200 V–800 V), 14 V Li-ion battery management systems, hybrid electric vehicles (HEV), electric vehicles (EV)
- Industrial applications: Energy storage systems (ESS), uninterruptible power supply (UPS) systems, e-bikes, e-scooters
Q & A
- What is the MC33772BTP1AE used for? The MC33772BTP1AE is a lithium-ion battery cell controller IC used in automotive and industrial applications for managing high-voltage battery systems.
- How many cells can the MC33772BTP1AE support? It supports 3 to 6 lithium-ion cells.
- What is the operating temperature range of the MC33772BTP1AE? The operating temperature range is -40°C to 125°C.
- What communication protocols does the MC33772BTP1AE support? It supports isolated 2 Mbps differential communication or 4 Mbps SPI.
- Does the MC33772BTP1AE have onboard cell balancing? Yes, it has onboard 300 mA passive cell balancing with low ohmic MOSFETS and diagnostics.
- Is the MC33772BTP1AE compliant with any safety standards? Yes, it is designed to support ISO 26262, up to ASIL D safety capability.
- What is the package type of the MC33772BTP1AE? The package type is 48-LQFP Exposed Pad.
- Is the MC33772BTP1AE RoHS compliant? Yes, it is ROHS3 compliant.
- What are some of the key applications of the MC33772BTP1AE? Key applications include high-voltage battery management systems, ESS, UPS systems, HEV, EV, e-bikes, and e-scooters.
- How does the MC33772BTP1AE perform data acquisition and communication? It achieves fast data acquisition and communication, with pack controller data acquisition in 0.86 ms and determination of individual cell impedances in one shot at 113 µs.
