L9915 Powertrain ICs for ICE/HEV/EV by STMicroelectronics

C-terminal alternator voltage regulator (CTAVR)


The device is a monolithic alternator voltage regulator intended for use in automotive application. It includes the control section, the field power stage, fault diagnostic circuit which drives a warning lamp, and the protection against short circuits. This device regulates in close loop the output of an automotive generator by controlling the field winding current by means of a pulse-width modulation (PWM) high side driver at fixed frequency. The set-point voltage reference selected by the Engine Control Unit via C-terminal protocol is temperature flat. An internal voltage reference thermally compensated is present in the device and used when the protocol coming from ECU is absent or the wire is broken. A self-bias circuitry is present on L pin in order to turn-on the warning lamp also when the device is not supplied (battery connection broken).

Prices starting from US$6.62


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Features

Fully monolithic design
High side field driver
Field short circuit protection
Regulated voltage driven by ECU (protocol driven)
Regulated voltage thermally compensated (without protocol)
Lamp driver (wake up and warning detection)
Self start function
Load response control (LRC)
Field monitor (FM) output
Thermal shutdown

Alternative Descriptions

C-TERMINAL ALTERNATOR VOLTREG, MULTIWATT | Farnell
Standard Regulator Pos 8-Pin MULTIWATT Tube | Avnet America
MULTIWATT 8/C-terminal alternator voltage regulator (CTAVR) | Avnet Silica


Frequently Asked Questions

Where can I find additional details, specifications and documents for a L9915?

Additional datasheets, footprints and schematics for L9915 are listed on our Part Details page. You can also find images and similar parts to L9915 on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for L9915 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view L9915 price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does L9915 fall under?

The L9915 is listed under Automotive Analog and Power > Powertrain ICs for ICE/HEV/EV > Alternator Regulators.

Can I view similar or alternative parts?

You can view similar parts to L9915 when available in the Alternator Regulators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the L9915 you can contact the distributor directly for product support, shipping queries etc.

Is the L9915 RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for L9915 have stock available?

Authorised distributors including Farnell, Avnet America and Avnet Silica have stock available or on a lead time for L9915.

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