STMicroelectronics L9679E
The L9679E is an extension chip in airbag systems or a pyroswitch manager. This device is family-compatible with the L9679 and L9680 devices. The device includes an octal driver for squib/pyroswitch deployments and a quad channel interface for PSI-5 sensors.| Part No. | L9679E |
|---|---|
| Datasheet | L9679E Download |
| Manufacturer |  STMicroelectronics |
| Description | Automotive battery cut-off circuit and airbag system |
| Buy | Stock & Price |
FEATURES
GADG0203181458PS TQFP48 exposed pad down (7x7x1 mm) Product status link L9679E Product summary Order code L9679E Package TQFP48 exp. pad (7x7x1.0 mm) Packing Tray Order code L9679ETR Package TQFP48 exp. pad (7x7x1.0 mm) Packing Tape and Reel● AEC-Q100 qualified
● Squib/Pyroswitch deployment drivers – 8-channel HSD/LSD – 25 V maximum deployment voltage – Various deployment profiles – Current monitoring Rmeasure, STB, STG and leakage diagnostics – High- and low-side driver FET tests
● Four-channel remote sensor interface – PSI-5 satellite sensors – Configurable asynchronous/synchronous protocols
● Configurable arming input signals
● Temperature sensor
● 32-bit SPI communications – 2 SPI buses (1 global, 1 for satellite communication) – Parity bit
● Integrated ADC measurements (1 ADC converter)
● Operating temperature: -40 °C to 105 °C
● Package - 48 pins
APPLICATIONS
● Airbag systems● Cut-off battery systems
● Pyro Fuse/Pyroswitch management
DESCRIPTION
Deployment profiles can be set according to user specifications via SPI configuration, as well as the protocol to be used to communicate with the satellite sensors.
