Overview
The MC33772CTP2AE is a SMARTMOS lithium-ion battery cell controller IC designed by NXP USA Inc. for various 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 is part of the MC33772C family, which emphasizes functional safety and reliability, complying with ISO 26262 standards through NXP's SafeAssure program.
Key Specifications
| Parameter | MC33772CTP2AE |
|---|---|
| Number of Channels | 3 to 4 |
| Over/Under Voltage (OV/UV) Protection | Yes |
| Number of GPIOs/AINx | 7 |
| Precision GPIO as Temperature Channels and OT/UT | Yes |
| Current Channel or Coulomb Count | Yes |
| Supply Voltage Range (Max) | 6 V to 30 V (40 V) |
| 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 |
| Package | 48-pin LQFP-EP (-40°C to 105°C) |
Key Features
- SMARTMOS technology for efficient battery management
- Supports 3 to 4 lithium-ion battery cells with over/under voltage protection
- Precision GPIOs for temperature measurements and over/under temperature protection
- Integrated balancing with a current limit of less than 300 mA and a timer
- Balancing sleep mode for power efficiency
- ADC conversions of differential cell voltages and current, along with battery coulomb counting
- Isolated daisy chain communication interface (TPL) with capacitive and inductive isolation
- Compliance with ISO 26262 for functional safety (ASIL C, ASIL D)
- I²C and SPI interfaces for communication with microcontrollers
Applications
- Automotive: 12 V and high-voltage battery packs, hybrid electric vehicles (HEV), electric vehicles (EV)
- Industrial: Energy storage systems (ESS), uninterruptible power supply (UPS) systems
- E-bikes, e-scooters, drones
- Battery junction box
Q & A
- What is the primary function of the MC33772CTP2AE IC?
The MC33772CTP2AE is a lithium-ion battery cell controller IC designed for managing and monitoring battery cells in various applications.
- What are the supported voltage ranges for the MC33772CTP2AE?
The supply voltage range is 6 V to 30 V (with a maximum of 40 V), and the cell input voltage range is -0.3 V to 5 V.
- Does the MC33772CTP2AE support isolated communication?
Yes, it supports isolated daisy chain communication with both capacitive and inductive isolation.
- What is the measurement error for cell voltage in the MC33772CTP2AE?
The measurement error is ± 0.8 mV at Vcell = 3.3 V and Ta = 25°C.
- Is the MC33772CTP2AE compliant with any functional safety standards?
Yes, it complies with ISO 26262 standards for ASIL C and ASIL D.
- What communication interfaces are available on the MC33772CTP2AE?
The IC supports I²C and SPI interfaces for communication with microcontrollers.
- What is the package type and operating temperature range of the MC33772CTP2AE?
The package type is 48-pin LQFP-EP, and the operating temperature range is -40°C to 105°C.
- Does the MC33772CTP2AE have integrated balancing capabilities?
Yes, it has integrated balancing with a current limit of less than 300 mA and a timer.
- What are some typical applications of the MC33772CTP2AE?
Typical applications include automotive battery packs, energy storage systems, UPS systems, and battery junction boxes.
- How many nodes can be connected in a daisy chain configuration with the MC33772CTP2AE?
Up to 63 nodes can be connected in a daisy chain configuration.
