MAX17843ACB datasheet(34/131 Pages) MAXIM

Part #	MAX17843ACB

Description	12-Channel, High-Voltage Smart Sensor Data-Acquisition Interface

PDF	131 Pages

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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RDFILT Bit in SCANCTRL Register (0x13)

This bit chooses where the ADC scan data is read from. Writing this bit to ‘1’ enables the read to occur from filtered CELLn

registers. The default value is ‘0’, wherein the read of the scanned data occurs from unfiltered ALUn registers.

Figure 12. IIR Flowchart with Respect to the AMENDFILT Bit

Table 9. RDFILT Bit

RDFILT BIT

FUNCTIONALITY AND RECOMMENDED USAGE

Reads UNFILTERED result from the ALUn registers.

To read back the result of diagnostic conversion such as open sense wire stored in ALUn registers.

Reads FILTERED result from the CELLn registers.

To read back the cell-voltage measurement data.

START OF ADC SCAN

ADC SCAN

COMPLETE?

YES

INSTANTANEOUS RESULT IN ALUn REGISTERS

AMENDFILT = 1?

UNFILTERED RESULT

STORED IN ALUn

REGISTERS

IIR FILTER

{CELLn = FC x ALU REGISTER +

(1-FC) x CELLn REGISTER}

INSTANTANEOUS RESULT IN ALUn REGISTERS

FILTERED RESULT STORED IN CELLn REGISTERS

YES

MAX17843

12-Channel, High-Voltage Smart Sensor

Data-Acquisition Interface

www.maximintegrated.com

Maxim Integrated │ 34

MAX17843ACB Datasheet(PDF) 34 Page - Maxim Integrated Products