L9963E datasheet(83/184 Pages) STMICROELECTRONICS

83 / 184 page

Category

Diagnostic

name

Condition

Available

Availability type

Actions

SPI related

fields

name

SPI related

fields

descriptio

BIST

EEPROM

Checksum

Failure

unwanted

change in

EEPROM

data

occurred

Trimming,

Normal

Upon EEPROM

Download

•Set Latch

•Stop balance on

whole stack

EEPROM_

CRC_ERR

_CAL_FF

Fault Latch

EEPROM_

CRC_ERR

MSK_CAL_

RAM = 1

EEPROM_

CRC_ERR

MSK_CAL_

FF = 1

BIST

RAM

Checksum

Failure

unwanted

change in

RAM data

occurred

Normal,

Cyclic

Wakeup

Always ON

•Set Latch

•Stop balance on

whole stack

RAM_CRC

_ERR

Fault Latch

RAM_CRC

_ERRMSK

= 1

BIST

AGND and

GNDREF

Loss

Loss of

both AGND

and

GNDREF

in respect

to DGND,

lasting

more than

TGND_LO

SS_FILTE

Normal,

Cyclic

Wakeup

Always ON

•Set Latch

•Raise FAULTL

loss_agnd

Fault Latch

BIST

DGND /

CGND Loss

A ground

shift among

AGND, and

DGND, or

AGND and

CGND,

lasts more

than

TGND_LO

SS_FILTE

Normal,

Cyclic

Wakeup

Always ON

•Set Latch

•Raise FAULTL

loss_dgnd

Fault Latch

loss_cgnd

Fault Latch

4.12

Voltage conversion routine

L9963E implements a flexible voltage conversion routine, whose main goals are:

•

Providing on-demand information about the cells voltage, the stack voltage and the cell temperature;

•

Providing on-demand diagnostic information about the device functionality;

•

Periodically monitoring the cells and the stack status, along with the device functionality;

•

Limit the power consumption by activating only the necessary resources;

•

Automatically validate any eventual failure detected during the routine execution.

The following parameters play a key role in the definition of the voltage routine behavior:

•

TCYCLEADC refers to the duration of a voltage conversion step. It can be programmed via the

ADC_FILTER_SOC (for On-Demand Conversions in Normalst ate) and ADC_FILTER_CYCLE (for cyclic

operation in both Normal and Cyclic Wakeup states) bit fields. Available values are listed in Table 38:

–

TCYCLEADC_XXX refers to a fixed option of TCYCLEADC, thus implying a fixed duration for the voltage

conversion;

L9963E

Voltage conversion routine

DS13636 - Rev 12

page 83/184

L9963E Fiches technique(PDF) 83 Page - STMicroelectronics

L9963E Fiches technique(HTML) 83 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

Fiches technique Télécharger

Lien URL