The KA84939UA is a battery monitoring IC that measures up to 20 series connected battery cells with a measurement error of less than 1.5 mV and maximum supply voltage 100v. The KA84939UA includes redundant measurement system and various safety functions that enable customers to design battery systems compliant with ISO26262 ASIL-D requirements. Multiple devices are connected in a daisy chain and this daisy chain can be operated bi-directionally to build highly robust communication. The KA84939UA is suitable for in-vehicle battery system connecting 100 to 200 battery cells in series.

Specification

Product Brief

Item	Performance characteristics
Category	Automotive / Stackable
Package	TQFP80L 14x14mm Body Lead_Pitch 0.65mm
Number of Channels	20
Operating Voltage [Min] (V)	10
Operating Voltage [Max] (V)	100
Interface	SPI/Daisy
Voltage Accuracy (mV)	±1.5
Operating Temperature [Min] (°C)	-40
Operating Temperature [Max] (°C)	125

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