L9679P datasheet(77/272 Pages) STMICROELECTRONICS

No. de pieza	L9679P

Descripción Electrónicos	Automotive advanced airbag IC for mid/high end applications

PDF	272 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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77 / 272 page

DocID029275 Rev 1

77/272

L9679P

SPI interfaces

271

Set based on voltage, cleared on SPI read

1 V_SYNCBOOST < SYNCBOOST_OK

0 V_SYNCBOOST > SYNCBOOST_OK

SATBUCK_NOK

SATBUCK bad pin status

Set based on voltage, cleared on SPI read

1 V_SATBUCK < SATBUCK_OK

0 V_SATBUCK > SATBUCK_OK

ER_BST_NOK

ERBOOST pin status

Set and cleared based on voltage

1 V_ERBOOST < ERBOOST_OK

0 V_ERBOOST > ERBOOST_OK

VCC_UV

VCC_UV status

Set based on voltage, cleared on SPI read

0 VCC > VCC_UV

1 VCC < VCC_UV

VCC_OV

VCC_OV status

Set based on voltage, cleared on SPI read

0 VCC < VCC_OV

1 VCC > VCC_OV

ER_BST_ON

ERBOOST_ON state

Updated according to ER_BOOST Control Behavior diagram

0 RBOOST_OFF or ERBOOST_OT state or ER_BST_STBY state (boost

not running)

1 ERBOOST_ON state (boost running)

ER_CHRG_ON

0 ERCHARGE_ON state

Updated according to ER_CHARGE Power Mode Control diagram

0 ERCHARGE_ON = 0

1 ERCHARGE_ON = 1

ER_LCDIS_ON

ER Low Current Discharge State

Updated according to ER Low current discharge state diagram

0 ER_LCDIS_OFF

1 ER_LCDIS_ON

L9679P Datasheet(PDF) 77 Page - STMicroelectronics

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