L9679P datasheet(215/272 Pages) STMICROELECTRONICS

215 / 272 page

DocID029275 Rev 1

215/272

L9679P

System voltage diagnostics

271

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

measurement and are summarized by function in the table below.

1 0

0001

$42

Unused

1 0

0001

$43

Unused

1 0

0010

$44

Unused

1 0

0010

$45

Unused

1 0

0011

$46

SF0 pin voltage

SF0

1 0

0011

$47

SF1 pin voltage

SF1

1 0

0100

$48

SF2 pin voltage

SF2

1 0

0100

$49

SF3 pin voltage

SF3

1 0

0101

$4A SF4 pin voltage

SF4

1 0

0101

$4B SF5 pin voltage

SF5

1 0

0110

$4C SF6 pin voltage

SF6

1 0

0110

$4D SF7 pin voltage

SF7

1 0

0111

$4E

1 0

0111

$4F

1 0

1000

$50

1 0

1000

$51

The DC sensor resistance measurement can only be addressed through DIAGCRTL_A command. Results are available

through DIAGCTRL_A and DIAGCTRL_B, where ADCRES_A will contain DCSI and ADCRES_B will contain DCSV.

2. Valid only for ADCREQ_x field of MISO response when ESR measure results are available.

Table 18. Diagnostics control register (DIAGCTRLx) (continued)

ADC Request (ADCREQx)

Voltage Measurement Selection

ADC Results (ADCRESx)

Bit[6:0]

Hex

Bit[9:0]

Table 19. Diagnostics divider ratios

Measurements

Divider Ratio

15:1

10:1

7:1

4:1

1:1

VER

ERBOOST

VSF

SSxy

SFx

GPODx

GPOSx

SYNCBOOST

VIN

L9679P Datasheet(PDF) 215 Page - STMicroelectronics

L9679P Datasheet(HTML) 215 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Descarga

Enlace URL