L9679PTR
ActiveADVANCED AIRBAG IC 5.5V TO 100-PIN TQFP T/R AUTOMOTIVE AEC-Q100
L9679PTR
ActiveADVANCED AIRBAG IC 5.5V TO 100-PIN TQFP T/R AUTOMOTIVE AEC-Q100
Technical Specifications
Parameters and characteristics for this part
| Specification | L9679PTR |
|---|---|
| Grade | Automotive |
| Interface | SPI |
| Mounting Type | Surface Mount |
| Package / Case | 100-TQFP Exposed Pad |
| Qualification | AEC-Q100 |
| Supplier Device Package | 100-TQFP (14x14) |
| Voltage - Supply | 5.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 990 | $ 9.15 | |
Description
General part information
L9679P Series
The L9679P is a chip that can be used in advanced airbag systems for mature airbag markets or in cut-off battery systems for integrated safety markets. This device is family compatible with the L9678 and L9680 devices. Safety system integration is enabled through higher power supply currents and integrated PSI-5 satellite interface.
High frequency power supply design allows further cost reduction by using smaller and less expensive external components. All switching regulators operate at 1.882 MHz while buck converters have integrated synchronous rectifiers.
Additional attention is given to system integrity and diagnostics. The reserve capacitor is electrically isolated from the boost regulator by a 50 mA nominal fixed current source, controlling in-rush an additional capacitor discharge fixed current source is integrated to diagnose the reserve capacitor value and ESR. The same current sources can be used to discharge the capacitor at shutdown.
Documents
Technical documentation and resources