L9679P datasheet(25/272 Pages) STMICROELECTRONICS

25 / 272 page

DocID029275 Rev 1

25/272

L9679P

Overview and block diagram

271

5.3

Remote sensor interfaces



Two channel receiver

–

standard PSI-5 v1.3 compatible with sync pulse



Current limit with short circuit protection diagnostics



PSI-5 satellite sensor mode

–

Auto-adjusting current trip points for each satellite channel

–

Even parity, 8 or 10 bit messages, 125k or 189kbps

–

Satellite message error detection

5.4

DC sensor interfaces



Nine integrated switch interfaces with current sense capability



Compatible with Hall-effect, resistive and switch sensors



Current limit protected



System dedicated path to disable the passenger airbag with input from DC sensor

interface

5.5

General purpose outputs



Three configurable high-side or low-side drivers



ON-OFF mode and PWM 0-100% fine control



Diagnostics for short circuit protection and open load detection



Current limit and reverse battery protected

5.6

Arming logic



User configurable safing algorithms with 12 safing records



Four digital sensor interfaces through SPI



Independent user programmable thresholds



Independent user programmable latch timers



Two discrete and independent arming logic outputs



Two discrete and independent internal arming signals



End-of-life interface

L9679P Arkusz danych(PDF) 25 Page - STMicroelectronics

L9679P Arkusz danych(HTML) 25 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

Arkusz danych Pobierz

Link URL