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Automotive LED drivers for front and rear lights bring reliability flexibility to exterior lighting

TI's industry-first two-channel switching solution for front lights and single LED short detection for rear lights save board space and cost

Texas Instruments (TI) (NASDAQ: TXN) has introduced theautomotive industry’s first two-channel switching LED driver for front lightsand the only linear LED driver with single short LED detection for rear lights.Unlike other LED drivers in the market, the TPS92630-Q1 and TPS92602-Q1 featureboth high-side current sense dimming and pulse width modulation (PWM) dimmingcapabilities, as well as full diagnostic and thermal management, which helpsdesigners create flexible lighting systems that meet many countries’ differingtraffic regulations. Applications include automotive LED front lamp, rear lampand interior lighting. For more information or to order samples, visit


Key features and benefits of the TPS92630-Q1 forautomotive rear lights:


    —  Industry’s only single LED short detection:Single LED short detection

        and fulldiagnostic capabilities give designers flexibility to meet

        differentcountries’ traffic regulations.

    —  Multi-chip fault bus connection: Supports upto 15 IC connections on one

        bus andsupports easy control logic without an extra microcontroller,

        which savesvaluable board space and cost, compared to previous


    —  Thermal current fold-back with programmablethreshold:  Prevents LED

        flickeringin thermal shut down situations.


Key features and benefits of the TPS92602-Q1 forautomotive front lights:


    —  Industry’s first two-channel switching LEDdriver: Each channel can

        support amultitude of topologies – buck, boost, buck-boost, SEPIC, and

        flyback, toname a few – which saves board space and cost.

    —  Supports both linear analog dimming withhigh-side current sensing and

        PWM dimmingwith high-side PMOS FET: Customers can develop simple,


    —  Dedicated diagnostic pin: Sends normal statusand fault information to

        the bodycontrol module for flexible control.

    —  Auto recovery: The device switches betweenconstant current and constant

        voltagemode for LED open protection. The TPS92602-Q1 switches to

        constantvoltage mode when LED open occurs and automatically recovers

        back toconstant current mode when the LED open is closed.


Tools and support

SPICE models are available for the TPS92630-Q1 andTPS92602-Q1. Evaluation modules (EVMs) are available for the TPS92630-Q1 and theTPS92602-Q1. View the demonstration video to learn more about the TPS92630-Q1and TPS92602-Q1.


Availability, packaging and pricing

The TPS92630-Q1 is available in a 16-pin HTSSOP packagepriced at US$0.90 in 1,000-unit quantities. The TPS92602-Q1 is available in a28-pin HTSSOP package priced at US$3.00 in 1,000-unit quantities.


Texas Instruments drives automotive innovation TI’sstate-of-the-art semiconductor products allow manufacturers and systemsuppliers to deliver world-class features to the automotive market. Ourextensive automotive portfolio includes analog power management, interface andsignal chain solutions, along with DLP(®) displays, ADAS and infotainmentprocessors, Hercules(TM) TMS570 microcontrollers and wireless connectivitysolutions. TI offers SafeTI(TM) devices designed to help facilitate OEMs’compliance with the requirements of ISO 26262, as well as parts specificallydesignated as compliant with the AEC-Q100 and TS16949 standards, all withproduct documentation. Visit TI’s Automotive page or TI’s E2E(TM) Behind theWheel Blog to learn more about our commitment to automotive innovation.


Find out more about TI’s automotive and transportationportfolio by visiting the links below:


    —  View TI’s complete automotive andtransportation portfolio:

    —  Download TI’s Automotive and TransportationSelection Guide:

    —  Join the TI E2E(TM) Automotive Community:

    —  Keep up with the latest automotive happeningsat TI:

About Texas Instruments  

Texas Instruments Incorporated (TI) is a globalsemiconductor design and manufacturing company that develops analog ICs andembedded processors. By employing the world’s brightest minds, TI createsinnovations that shape the future of technology. TI is helping more than100,000 customers transform the future, today. Learn more at



TI E2E is a trademark of Texas Instruments. All othertrademarks and registered trademarks belong to their respective owners.

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