Chinese chip company Salubris Technology launched XL8816 domestic chip to replace LTC6813
The XL8816 is an automotive-grade, multi-cell battery pack monitoring chip that meets AEC-Q100 and ISO26262 automotive safety ASIL D standards, focusing on high-precision measurement and low-power design.
The chip can measure voltages from up to 16 cells connected in series with a total measurement error of less than 3mV.
The 0V to 5V battery measurement range makes the XL8816 suitable for most chemical component batteries. All 16 cells can be measured in less than 218us, and a lower data acquisition rate can be selected for high noise suppression.
The XL8816 supports multi-chip cascade applications, enabling simultaneous monitoring of each cell in up to hundreds of high-voltage batteries.
Each XL8816 has an isolated SPI interface for high-speed, RF-resistant local area communication. Supports 2 ways:
1) Multiple devices are daisy-chained, and all devices are wired by a host processor;
2) Multiple devices are connected to the main processor in parallel, and each device is individually addressed.
The XL8816 can be powered directly from the battery pack or independently, and the chip integrates passive balancing for each cell independently
PWM control. One 5V regulator and nine are included in the chip
A generic GPIO channel.
In sleep mode, the XL8816 consumes as little as 4uA.