Product details


Topology Floating Switch Vin (Min) (V) 4.5 Vin (Max) (V) 5.5 Vout (Min) (V) 0 Vout (Max) (V) 60 Iout (Max) (A) 1 Iq (Typ) (mA) 1 Operating temperature range (C) -40 to 125 Features Integrated Switch open-in-new Find other Automotive LED drivers

Package | Pins | Size

HTQFP (PHP) 48 81 mm² 9 x 9 open-in-new Find other Automotive LED drivers


  • 12 Series LED Bypass Switches
  • Multi-Drop UART Communication Interface
  • Programmable 10-bit PWM Dimming
    • Individual Turn-on and Turn-off Times
    • Inherent Phase Shift Capability
    • Device-to-Device Synchronization
  • LED Open/Short Detection and Protection
    • Fault Reporting
  • AEC-Q100 Grade 1
  • Thermally Enhanced Package
    • 48-pin, TQFP, Exposed Pad Package
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The TPS92661 device is a compact, highly-integrated solution for shunt FET dimming for large arrays of high-brightness LEDs in applications such as automotive headlights.

The TPS92661 device includes a 12-switch series array for bypassing individual LEDs in the string and a serial communication interface for control and management by a master microcontroller.

An on-board charge pump rail that can float up to 67 V aboveGND provides the LED bypass switch gate drive.The low on-resistance (RDS(on)) of the bypass switch minimizes conduction loss and power dissipation.

The TPS92661 device contains a multi-drop universal asynchronous receiver transmitter (UART) for serial communication. The turn-on and turn-off times are programmable for each individual LED in the string. The PWM frequency is adjustable via an internal register and multiple devices can be synchronized to the same frequency and phase.

The TPS92661 device features open LED protection as well as open and short LED fault reporting via the serial interface.

The TQFP package features a feed-through topology to enable easy routing of

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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
TPS92662-Q1 ACTIVE 12-channel high-brightness LED matrix manager for automotive headlight systems This product controls up to 372 pixels of individual LED brightness with flexible switch configurations and programmable LED open detection voltage threshold.

Technical documentation

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Type Title Date
* Datasheet High-Brightness LED Matrix Manager for Automotive Headlight Systems datasheet (Rev. A) Aug. 12, 2015
White paper LED Drivers for Automotive Exterior Applications (Rev. B) Mar. 27, 2018
Technical articles Shining a light on op amps: considerations in LED lighting Oct. 20, 2016
Technical articles Lighting the road ahead: LEDs in automotive front lighting Sep. 29, 2016
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical articles LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
User guide TPS92661EVM-001 LED Matrix Manager Evaluation Module User's Guide (Rev. A) Sep. 24, 2014

Design & development

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Hardware development


This evaluation board showcases the TPS92661Q LED Lighting Matrix Manager. It is intended to show the individual PWM dimming control of each LED, and is targeted at exterior automotive lighting. The board includes 2 strings of 12 LEDs at a maximum average LED current of 130mA from a DC input voltage (...)

  • Two independently controlled LED strings with TPS92661 LED management.
  • Ability to adjust and monitor various system properties via the included GUI.
  • On-board, Re-programmable C2000 DSC, and/or external connector, allows for custom firmware development.
  • Measurement points available to measure primary (...)

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
HTQFP (PHP) 48 View options

Ordering & quality

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