L9678P_V01中文资料意法半导体数据手册PDF规格书

特性 Features

 AEC-Q100 qualified

 Energy reserve voltage power supply

– High frequency boost regulator, 1.882 MHz

– Output voltage user selectable, 23 V or

33 V ±5%

 User configurable linear power supplies

– 5.0 V and 7.2 V ±4% output voltages

– External pass transistor

 Fully integrated 3.3 V ±4% linear regulator

 Battery voltage monitor and shutdown control

with wake-up control

 System voltage diagnostics with integrated

ADC

 Crossover switch

– Crossover performance, max 3 Ω, 600 mA

max.

 Squib/pyroswitch deployment drivers

– 4 channel HSD/LSD

– 25 V maximum deployment voltage

– 1.2 A @ 2 ms and 1.75 A @ 0.5/0.7 ms

deployment profiles

– Integrated safing FET linear regulator,

20 V/25 V nominal

– Current monitoring

– Rmeasure, STB, STG and leakage

diagnostics

– High and low side driver FET tests

– Safing FET test

 User customizable safing logic

 Two channel PSI-5 remote sensor interface

(asynchronous mode), [only for L9678P-S

version]

 Four channel hall-effect, resistive or switch

sensor interface

 ISO9141 transceiver

 Dual channel configurable high-side/low-side

LED driver

 Watchdog timer

 Two integrated oscillators: 7.5/16 MHz

 Temperature sensor

 32 bit SPI communications

 Minimum operating voltage = 6 V

 Operating temperature, -40 °C to 95 °C

 Packaging - 64 pin

Applications

 Low end airbag systems

 Cut-off battery systems

 Pyro Fuse/Pyroswitch management