MM9Z1J638BM2EP

MM9Z1J638BM2EP is an intelligent battery sensor with CAN and LIN. This is a fully integrated intelligent battery monitoring system. The device supports precise current measurement via an external shunt resistor. It features four voltage measurements via internal calibrated resistor dividers or external dividers. It includes an internal temperature sensor, allowing close proximity battery temperature measurements, plus four external temperature sensor inputs. The MM9Z1_638 features the LIN 2.2 protocol and physical interface, as well as an msCAN protocol controller, for interfacing to automotive buses. The MM9Z1_638 is able to supply and control external CAN interfaces. Typical applications include 12V lead-acid battery monitoring, Multi-cell battery (Li-ion) monitoring, HV battery pack sensor and truck battery monitoring.

• 128KB flash, 8KB RAM, 4KB EEPROM and 3.5 to 28V operating supply voltage
• Wide range battery current measurement, on-chip temperature measurement
• Measurement synchronization between voltage channels and current channels
• Five external temperature sensor inputs with internal supply for external sensors
• Low-power modes with low-current operation
• Multiple wake-up source: LIN, timer, high-voltage I/P, external CAN interface, and current threshold
• 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
• 48 pin QFN-EP package and temperature range from -40°C to 125°C