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TPS92630-Q1

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Automotive Three-channel Linear LED driver with Analog and PWM dimming

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Data sheet

TPS92630-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels (#) 3 Topology Current Source Rating Automotive Operating temperature range (C) -40 to 125 Vin (Min) (V) 5 Vin (Max) (V) 40 Vout (Min) (V) 0 Vout (Max) (V) 40 Iout (Max) (A) 0.45 Iq (Typ) (mA) 0.6 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, LED Shorted Detection, Thermal Foldback, Thermal Shutdown
Number of channels (#) 3 Topology Current Source Rating Automotive Operating temperature range (C) -40 to 125 Vin (Min) (V) 5 Vin (Max) (V) 40 Vout (Min) (V) 0 Vout (Max) (V) 40 Iout (Max) (A) 0.45 Iq (Typ) (mA) 0.6 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, LED Shorted Detection, Thermal Foldback, Thermal Shutdown
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HTSSOP (PWP) 16 32 mm² 5 x 6.4
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  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • 3-Ch. LED Driver With Analog and PWM Dimming
  • Wide Input-Voltage Range: 5 V–40 V
  • Adjustable Constant Output Current Set by Reference Resistor
    • Max. Current: 150 mA per Channel
    • Max. Current: 450 mA in Parallel Operation Mode
    • Accuracy: ±1.5% per Channel When I(IOUTx) > 30 mA
    • Accuracy: ±2.5% per Device When I(IOUTx) > 30 mA
  • Parallel Outputs for Higher Current Using Multiple ICs or Multiple Channels of a Single IC
  • Low Dropout Voltage
    • Max. Dropout: 400 mV at 60 mA per Channel
    • Max. Dropout: 0.9 V at 150 mA per Channel
  • Independent PWM Dimming per Channel
  • Open and Shorted LED Detection With Deglitch Timer
  • LED-String Voltage Feedback per Channel for Single-LED Short Detection
  • Separate Fault Pin for Single-LED Short Failure
  • Fault Pin for Open, Short, and Thermal Shutdown Failure Reporting, Allowing Parallel Bus Connection up to 15 Devices
  • Device Accommodates a Slow Input-Voltage dV/dt (0.5 V/min) With No Issues
  • Operating Junction Temperature Range –40°C to 150°C
  • Package: 16-Pin Thermally Enhanced PWP Package (HTSSOP)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • 3-Ch. LED Driver With Analog and PWM Dimming
  • Wide Input-Voltage Range: 5 V–40 V
  • Adjustable Constant Output Current Set by Reference Resistor
    • Max. Current: 150 mA per Channel
    • Max. Current: 450 mA in Parallel Operation Mode
    • Accuracy: ±1.5% per Channel When I(IOUTx) > 30 mA
    • Accuracy: ±2.5% per Device When I(IOUTx) > 30 mA
  • Parallel Outputs for Higher Current Using Multiple ICs or Multiple Channels of a Single IC
  • Low Dropout Voltage
    • Max. Dropout: 400 mV at 60 mA per Channel
    • Max. Dropout: 0.9 V at 150 mA per Channel
  • Independent PWM Dimming per Channel
  • Open and Shorted LED Detection With Deglitch Timer
  • LED-String Voltage Feedback per Channel for Single-LED Short Detection
  • Separate Fault Pin for Single-LED Short Failure
  • Fault Pin for Open, Short, and Thermal Shutdown Failure Reporting, Allowing Parallel Bus Connection up to 15 Devices
  • Device Accommodates a Slow Input-Voltage dV/dt (0.5 V/min) With No Issues
  • Operating Junction Temperature Range –40°C to 150°C
  • Package: 16-Pin Thermally Enhanced PWP Package (HTSSOP)
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The TPS92630-Q1 device is a three-channel linear LED driver with analog and PWM dimming control. Its full-diagnostic and built-in protection capabilities make it a suitable choice for variable-intensity LED lighting applications up to the medium-power range.

The design of this device suits it well for driving LEDs configured as a single string or multiple strings within its power capability. A single device can drive up to three strings with one to three LEDs in each string at a total current of up to 150 mA per channel. Outputs can be paralleled to provide higher current drive capability to 450 mA.

In multiple-string applications, the device offers the advantage of having common-cathode connection of the LED strings. So, the application needs only a single return wire instead of one return wire per LED string that a system with low-side current sense would need.

A single-LED-short comparator allows detection of single LED failing with a short circuit. Fault output can support bus connection topology between multiple devices.

The included temperature monitor reduces the LED drive current if the device junction temperature exceeds a thermal threshold. One can program the temperature threshold through an external resistor. One can disable the thermal current-monitor feature by connecting the TEMP pin to ground. Output of the junction temperature as an analog voltage is available as a factory program option.

The TPS92630-Q1 device is a three-channel linear LED driver with analog and PWM dimming control. Its full-diagnostic and built-in protection capabilities make it a suitable choice for variable-intensity LED lighting applications up to the medium-power range.

The design of this device suits it well for driving LEDs configured as a single string or multiple strings within its power capability. A single device can drive up to three strings with one to three LEDs in each string at a total current of up to 150 mA per channel. Outputs can be paralleled to provide higher current drive capability to 450 mA.

In multiple-string applications, the device offers the advantage of having common-cathode connection of the LED strings. So, the application needs only a single return wire instead of one return wire per LED string that a system with low-side current sense would need.

A single-LED-short comparator allows detection of single LED failing with a short circuit. Fault output can support bus connection topology between multiple devices.

The included temperature monitor reduces the LED drive current if the device junction temperature exceeds a thermal threshold. One can program the temperature threshold through an external resistor. One can disable the thermal current-monitor feature by connecting the TEMP pin to ground. Output of the junction temperature as an analog voltage is available as a factory program option.

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Technical documentation

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Type Title Date
* Data sheet TPS92630-Q1 Three-Channel Linear LED Driver With Analog and PWM Dimming datasheet (Rev. E) 25 May 2018
Application note Typical Design Guidelines for TPS92630/8-Q1 in Automotive Rear Lamp Applications 01 Sep 2020
Technical article Always make the right turn: how to design fault circuits in automotive lighting systems 16 Jan 2020
White paper LED Drivers for Automotive Exterior Applications (Rev. B) 27 Mar 2018
Selection guide 汽车外部照明应用的LED驱动器 15 Mar 2018
Technical article Here's how body electronics and lighting technology are changing the driving experience 26 Sep 2016
Technical article LED brightness adjustment: high-frequency PWM dimming 26 Aug 2016
Application note How to Calculate TPS92630-Q1 Maximum Output Current for Automotive Exterior Ligh 22 Dec 2015
User guide TPS92630-Q1 Evaluation Module (EVM) User's Guide (Rev. A) 13 Feb 2015
Technical article Take better selfies with innovative LED flashes 18 Nov 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS92630EVM — TPS92630EVM: 3 Channel Linear LED Driver Evaluation Module

Texas Instruments TPS92630 evaluation module contains a TPS92630-Q1 integrated circuit (IC), supporting passive components and three OSRAM LEDs in series per channel, the total includes 3 channels. The purpose of this EVM is to facilitate evaluation of the TPS92630-Q1 in a typical LED application

 

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Simulation model

TPS92630-Q1 Unencrypted PSpice Transient Model Package (Rev. C)

SLVMA62C.ZIP (135 KB) - PSpice Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Reference designs

TIDA-00677 — CISPR25 Automotive Tail Light Reference Design for Step-Down + Linear LED Driver Based Systems

TIDA-00677 showcases an automotive LED tail light application (tail/stop, turn and reverse) by using the TPS92630-Q1 linear LED driver supplied by an upstream buck converter (TPS65321-Q1) which is directly supplied through a smart-reverse battery diode off the automotive battery voltage. The (...)
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Reference designs

TIDA-00678 — CISPR25 Tested Automotive Tail Light Reference Design for Step-Up + Linear LED Driver Based Systems

TIDA-00678 showcases an automotive LED tail light application (tail/stop, turn and reverse) by using TPS92630-Q1 linear LED driver powered by an upstream boost converter (TPS40210-Q1) which is directly supplied through a smart-reverse battery diode off the automotive battery voltage. The design (...)
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Reference designs

TIDA-00679 — Linear LED Driver Reference Design for Automotive Lighting Applications

TIDA-00679 an automotive LED tail-light application (tail/stop, turn and reverse). It uses TPS92630 linear LED driver which is directly powered through a smart-reverse battery diode off the automotive battery. The design enables potential cost savings and efficiency through lower power dissipation (...)
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Reference designs

TIDA-00846 — Automotive high-side dimming rear light reference design

This reference design is for automotive high-side dimming rear light, which uses BCM to supply the rear light. In the design, the high-side driver TPS1H100-Q1 is used to output PWM supply with different duty cycle. Linear LED drivers TPS92630-Q1 and TPS92638-Q1 are used to drive LEDs in constant (...)
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Reference designs

TIDA-00296 — Automotive Body Control Module Driver Reference Design

TIDA-00296 is a reference design that highlights TI's high-side and low-side relay, motor, and load driver portfolios. The loads for this design (door locks, window lifts, seat heaters, HVAC, lamps, and LEDs) were chosen to show the range of loads that a BCM can drive and how TI's solutions fit (...)
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document-pdfAcrobat User guide
Reference designs

TIDA-00264 — Automotive Rear Light EMC Reference Design

The TIDA-00264 reference design is an automative rear light EMC design. This is a direct connection to battery appllication, with a total drive of 900mA LED current. The design is implemented with 3 TPS92630-Q1 devices with fault bus connection. The TIDA-00264 will help customers use the (...)
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HTSSOP (PWP) 16 View options

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