The NXP® MM9Z1I638BM2EP is a fully integrated battery monitoring device, featuring:
- Support of precise current measurement via an external shunt resistor
- Four voltage measurement via an internal calibrated resistor divider or use of an external divider
- An internal temperature sensor, allowing close proximity battery temperature measurements, plus four external temperature sensor inputs
- LIN 2.2 protocol and physical interface and an MSCAN protocol controller for interfacing to automotive buses
Feature
- This product is included in NXP’s product longevity program, with assured supply for a minimum of 10 years after launch
- Wide range battery current measurement; on-chip temperature measurement
- Four battery voltage measurements with internal resistor dividers, and up to five direct voltage measurements for use with an external resistor divider
- Measurement synchronization between voltage channels and current channels
- Five external temperature sensor inputs with internal supply for external sensors
- Low-power modes with a low-current operation
- Multiple wake-up sources: LIN, timer, high-voltage input, external CAN interface, and current threshold and integration
- Precision internal oscillator and connections for external crystal
- LIN 2.2/ 2.1/ 2.0 protocol and physical interface
- msCAN protocol controller and supply capability for 8 and 14-pin CAN interfaces
- S12Z MCU with 128 KB Flash, 8.0 KB RAM, 4.0 KB EEPROM
