DNB1168 is manufacured by Datang NXP Semiconductors.

Product Introduction

DNB1168 is a globally leading single battery monitoring chip with integrated (EIS) AC impedance spectrum monitoring function. This chip has passed dual certification of automotive grade AEC-Q100 and the highest functional safety level in the automotive industry, ISO 26262:2018 ASIL-D. chip ­ Internally integrated with various high-precision battery parameter monitoring, supporting voltage, temperature, AC impedance detection, balancing, and various fault diagnosis functions, it can provide exclusive battery online "CT" detection technology worth hundreds of thousands of yuan for batteries, provide a new detection dimension for battery management systems, and achieve health monitoring of the entire battery life cycle.

●Meet the AEC-Q100 standard for automotive level certification
●Approved by the highest functional safety level ISO 26262: 2018 ASIL-D in the automotive industry
●Voltage measurement accuracy+/-2mV
●Cell measurement voltage range 1.9V to 5.5
●Internal temperature sensor accuracy of the chip+/-2.5K
●Passive equalization with diagnostic function
●Low impedance electrochemical impedance spectroscopy of battery cells
●Daisy chain communication speed 1Mbps

characteristic

This chip is a single cell battery management chip that provides voltage detection, temperature detection, impedance detection, and equalization functions for batteries. The temperature detection function of the chip does not require NTC and related peripheral circuits, and the impedance detection function makes some advanced system applications possible. The chip supports internal balancing and external balancing. External balancing and impedance share a set of peripheral circuits, and internal balancing does not require peripheral circuits. The chip has a certain degree of self diagnostic ability, supporting overvoltage and undervoltage alarms, high and low temperature alarms, and other chip related abnormal alarms.

advantage

1) It can be directly affixed to flexible PCBs (FPCBs), simplifying the circuit while eliminating the need for secondary control boards.
2) Built in temperature sensor, no need for NTC and related peripheral circuits, saving materials.
3) Provide internal resistance monitoring function for battery cells and support the implementation of some advanced applications.
4) Support early warning of thermal runaway.
5) Supports ultra fast charging implementation.
6) Support online reading of battery aging status, saving costs in the recycling process.
7) Support ASIL-D function security level.