L9678P datasheet(78/203 Pages) STMICROELECTRONICS

78 / 203 page

SPI interface

L9678P, L9678P-S

78/203

DocID029274 Rev 3

10 = ON bypass current for channel selected in RES_MEAS_CHSEL,



OFF ON all other channels

11 = OFF

ISINK

0 Low Side current sink control (max 50mA)

Updated by SSM_RESET or SPI write

0 All channels OFF

1 ON for channel selected by RES_MEAS_CHSEL[3:0], OFF on all other



channels

VRCM[1:0]

00 Voltage Regulator Current Monitor control

Updated by SSM_RESET or SPI write

00 VRCM not connected

01 VRCM connected to SFx of channel selected by LEAK_CHSEL[3:0]

10 VRCM connected to SRx of channel selected by LEAK_CHSEL[3:0]



and pull down current of the same channel disabled

11 VRCM connected to SRx of channel selected by LEAK_CHSEL[3:0]



and pull down current of the same channel enabled (ISINK and ISRC



must be switched OFF)

RES_MEAS_CHS

EL[3:0]

0000 0000 0000 Squib Resistance Measurement Channel select - selects the channel and

muxes for the resistance test, and the channel for HS driver test (full path fet

test) activation

Updated by SSM_RESET or SPI write

0000 Channel 0

0001 Channel 1

0010 Channel 2

0011 Channel 3

0100 - 1111 None Selected

LEAK_CHSEL[3:0] 0000 0000 0000 Squib Leakage Measurement Channel select - selects the channel and

muxes for the leakage test, and the channel for HS/LS FET test activation.

Updated by SSM_RESET or SPI write

0000 Channel 0

0001 Channel 1

0010 Channel 2

0011 Channel 3

0100 - 1111 None Selected

L9678P Datasheet(PDF) 78 Page - STMicroelectronics

L9678P Datasheet(HTML) 78 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 Download

Link URL