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L9691-TR - Automotive chip for advanced airbag applications

Part Number: L9691-TR

Package: TQFP-128

Product Type: Automotive Chip

Product Description

L9691-TR is an advanced airbag system chip solution targeted for the global airbag market. High frequency power supply design optimizes system cost by using smaller and less expensive external components. All switching regulators operate at 2 MHz and all buck converters have integrated synchronous rectifiers.

Product Features

Single chip and master/slave configurations

Boost regulator for energy reserve

– 2 MHz operation

– Output voltage 24 V/33 V ±6%, user-selectable, peak inductor current regulation

– Capacitor value and ESR diagnostics

Boost regulator for low voltage system operation

– 2 MHz operation

– Output voltage, 10 V ±8%, 870 mA max

Buck regulator for remote sensor

– 2 MHz operation

– Output voltage, 6.5 V/8 V ±4%, 700 mA max

Buck regulator for micro controller unit

– 2 MHz operation

– Output voltage, 3.3 V ±3%, 450 mA max

Two isolated high side safing FET regulators and diagnostics

Eight channel PSI-5 v2.3 remote sensor interface

Three channel general purpose low side drivers with 0-100% PWM control

Twelve channel hall-effect, resistive or switch sensor interface

User-programmable safing logic and rolling average algorithm

E2E arming procedure through global SPI

Temporal watchdog timer

End-of-life disposal interface

Temperature sensor

32 bit global SPI bus interface

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.