Overview
The MC33772BTC0AE is a SMARTMOS lithium-ion battery cell controller IC designed by NXP USA Inc. for automotive and industrial applications. This IC is particularly suited for hybrid electric vehicles (HEV), electric vehicles (EV), energy storage systems (ESS), and uninterruptible power supply (UPS) systems. It integrates advanced features for battery management, including cell voltage and current measurements, coulomb counting, and temperature monitoring. The device supports high-speed isolated communication through SPI or Transformer Isolation (TPL) and is compliant with ISO 26262 safety standards up to ASIL D.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Operating Voltage (VPWR) | 5.0 V to 30 V | 40 V transient |
| Cell Management | 3 to 6 cells | |
| Cell Voltage Measurement Error | 0.8 mV total | |
| Communication | Isolated 2.0 Mbps differential or 4.0 Mbps SPI | |
| Package | HLQFP48 | |
| GPIO/Temperature Sensor Inputs | Seven | |
| Reference Supply Output | 5.0 V, 5 mA capability | |
| Passive Cell Balancing | 300 mA with diagnostics | |
| Safety Compliance | ISO 26262 up to ASIL D |
Key Features
- Addressable on initialization
- Synchronized cell voltage and current measurements with coulomb counting
- Total stack voltage measurement
- Automatic over/undervoltage and temperature detection routable to fault pin
- Integrated sleep mode with over/undervoltage and temperature monitoring
- Onboard 300 mA passive cell balancing with diagnostics
- Hot plug capable
- Detection of internal and external faults, including open lines, shorts, and leakages
- High-speed isolated or SPI communication
- Supports ISO 26262 safety standards up to ASIL D
Applications
- Hybrid Electric Vehicles (HEV)
- Electric Vehicles (EV)
- Energy Storage Systems (ESS)
- Uninterruptible Power Supply (UPS) systems
- E-bikes and e-scooters
- Battery junction boxes
Q & A
- What is the MC33772BTC0AE used for?
The MC33772BTC0AE is a lithium-ion battery cell controller IC used for automotive and industrial applications such as HEV, EV, ESS, and UPS systems.
- What is the operating voltage range of the MC33772BTC0AE?
The operating voltage range is 5.0 V to 30 V with a 40 V transient capability.
- How many cells can the MC33772BTC0AE manage?
The IC can manage 3 to 6 lithium-ion battery cells.
- What communication protocols does the MC33772BTC0AE support?
The IC supports isolated 2.0 Mbps differential communication or 4.0 Mbps SPI.
- What package type is the MC33772BTC0AE available in?
The IC is available in a 48-pin HLQFP package.
- Does the MC33772BTC0AE support cell balancing?
Yes, it supports onboard 300 mA passive cell balancing with diagnostics.
- Is the MC33772BTC0AE compliant with any safety standards?
Yes, it is designed to support ISO 26262 safety standards up to ASIL D.
- What are some of the key features of the MC33772BTC0AE?
Key features include synchronized cell voltage and current measurements, total stack voltage measurement, automatic fault detection, and integrated sleep mode monitoring.
- Can the MC33772BTC0AE be used in hot plug applications?
Yes, the IC is hot plug capable.
- What types of faults can the MC33772BTC0AE detect?
The IC can detect internal and external faults such as open lines, shorts, and leakages.
