L9396 datasheet(66/109 Pages) STMICROELECTRONICS

66 / 109 page

System functional safety implementations

L9396

66/109

DS12539 Rev 10

Proper scaling is necessary for various voltage measurements. The divider ratios vary by

measurement and are summarized by function in the table below.

Table 46. Conversion time

ADC CONFIG NSUM

Con. time (all channels)

“000”

1 sample

445 µs

“001”

2 samples

539 µs

“010”

4 samples

728 µs

“011”

8 samples

1106 µs

“100” to “111”

16 samples

1862 µs

Table 47. Divider ratios vary by measurement are summarized by function

Measurements

Divider ratio

22:1

15:1

10:1

7:1

4:1

2:1

1:1

√

VBST

√

GPOD0

√

VB_SW

√

VBM

√

VDBATT

√

VDS

√

PDS

√

IGN

√

WDTDIS

√

RSUH/L

√

VPREREG

√

VCC5

√

VCC

√

VCORE

√

SCORE

√

VDD

√

VINTA

√

AI[0..4]

√

Bandgap reference

(BGR/BGM)

√

Temperature sensor

√

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