Overview
The MM9Z1I638BM2EP, produced by NXP USA Inc., is a fully integrated intelligent battery monitoring system designed for various automotive and industrial applications. This device supports precise current measurement via an external shunt resistor and features multiple voltage and temperature measurements. It is built on SMARTMOS technology and includes interfaces for CAN and LIN protocols, making it versatile for different battery monitoring needs, including 12 V lead-acid, multi-cell Li-ion, and high-voltage battery pack monitoring.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | 48-HLQFP (7x7) Exposed Pad |
| Interface | CAN, LIN 2.2/2.1/2.0, I²C, SPI |
| Operating Temperature | -40°C to 125°C (TA) |
| Microcontroller | S12Z with 96/128 kByte Flash, 8.0 kByte RAM, 4.0 kByte EEPROM |
| Battery Chemistry | Lithium Ion, Lead-Acid |
| Current Measurement | Wide range via external shunt resistor |
| Voltage Measurements | Four internal calibrated resistor dividers, up to five direct voltage measurements with external resistor dividers |
| Temperature Sensors | Internal temperature sensor, five external temperature sensor inputs |
| Power Modes | Low-power modes with low-current operation |
| Wake-up Sources | LIN, timer, high-voltage input, external CAN interface, current threshold and integration |
Key Features
- Precise current measurement via an external shunt resistor
- Four battery voltage measurements with internal resistor dividers and up to five direct voltage measurements using external resistor dividers
- Internal temperature sensor and five external temperature sensor inputs
- Measurement synchronization between voltage and current channels
- Low-power modes with low-current operation
- Multiple wake-up sources including LIN, timer, high-voltage input, external CAN interface, and current threshold and integration
- LIN 2.2/2.1/2.0 protocol and physical interface, msCAN protocol controller
- Supply capability for 8 and 14 pin CAN interfaces
Applications
- 12 V lead-acid battery monitoring
- Multi-cell Li-ion battery monitoring
- High-voltage battery pack sensor
- Truck battery monitoring
- Automotive and industrial battery management systems (BMS)
Q & A
- What is the MM9Z1I638BM2EP used for? The MM9Z1I638BM2EP is used for intelligent battery monitoring in various automotive and industrial applications.
- What types of batteries can it monitor? It can monitor 12 V lead-acid, multi-cell Li-ion, and high-voltage battery packs.
- What communication protocols does it support? It supports CAN, LIN 2.2/2.1/2.0, I²C, and SPI protocols.
- How does it measure current? It measures current via an external shunt resistor.
- What is the operating temperature range? The operating temperature range is -40°C to 125°C (TA).
- Does it have internal temperature sensing? Yes, it includes an internal temperature sensor and supports five external temperature sensor inputs.
- What are the power modes of the device? It has low-power modes with low-current operation.
- What are the wake-up sources for the device? The wake-up sources include LIN, timer, high-voltage input, external CAN interface, and current threshold and integration.
- What microcontroller does it use? It uses an S12Z microcontroller with 96/128 kByte Flash, 8.0 kByte RAM, and 4.0 kByte EEPROM.
- What is the package type of the MM9Z1I638BM2EP? The package type is 48-HLQFP (7x7) Exposed Pad.
