Product details


Topology Boost with Current Sink Vin (Min) (V) 3 Vin (Max) (V) 48 Vout (Min) (V) 2 Vout (Max) (V) 48 Iout (Max) (A) 0.6 Iq (Typ) (mA) 2.5 Switching frequency (Max) (kHz) 2200 Operating temperature range (C) -40 to 125 Features Adjustable Switch Frequency, Boost Sync, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C Control, Spread Spectrum open-in-new Find other Automotive LED drivers

Package | Pins | Size

HLQFP (VFP) 32 81 mm² 9 x 9 open-in-new Find other Automotive LED drivers


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Input Voltage Operating Range 3 V to 48 V
  • Four High-Precision Current Sinks
    • Current Matching 0.5% (typical)
    • LED String Current up to 150 mA per Channel
    • Dimming Ratio > 13 000:1 With External PWM Brightness Control
    • 16-bit Dimming Control with SPI or I2C
    • Supports Display Mode (Global Dimming) and Cluster Mode (Independent Dimming)
  • Hybrid PWM and Current Dimming for Higher LED Drive Optical Efficiency
  • Synchronization for LED PWM Frequency
  • Boost Controller With Programmable Switching Frequency 100 kHz to 2.2 MHz and Spread-Spectrum Option for Lower EMI
  • Boost Synchronization Input
  • Power-Line FET Control for Inrush Current Protection and Standby Energy Saving
  • Automatic LED Current Reduction With External Temperature Sensor
  • Extensive Fault Diagnostics

All trademarks are the property of their respective owners.

open-in-new Find other Automotive LED drivers


The LP8860-Q1 is an automotive high-efficiency LED driver with boost controller. It has 4 high-precision current sinks that can be controlled by a PWM input signal, an SPI or I2C master, or both.

The boost converter has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8860-Q1 to avoid disturbance for AM radio band.

The LP8860-Q1 supports built-in hybrid PWM and current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency. Phase-shift PWM reduces audible noise and output ripple.

open-in-new Find other Automotive LED drivers
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NEW LP8866-Q1 ACTIVE Automotive display LED-backlight driver with six 200-mA channels Upgraded version with enhanced diagnostics feature and power density
Similar but not functionally equivalent to the compared device:
NEW LP8866S-Q1 ACTIVE Automotive display LED-backlight with six 150-mA channels Upgraded version with enhanced diagnostics feature and power density

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet LP8860-Q1 Low-EMI Automotive LED Driver With Four 150-mA Channels datasheet (Rev. G) Oct. 31, 2017
Application note Selecting the Correct LP8860-Q1 EEPROM Version (Rev. D) Sep. 04, 2020
Application note Some Guidelines and Tips for the LED Driver Application Aug. 14, 2019
Application note LP8860-Q1 Boost Compensation Registers (Rev. A) Aug. 12, 2019
Application note LP8860-Q1 Electrical Overstress Analysis and Recommendation Aug. 07, 2018
Application note Automotive Cold Crank Operation with LP8860-Q1 Apr. 04, 2018
Application note Using the LP8860-Q1 for Low EMI Automotive Designs Feb. 15, 2018
White paper Powering automotive displays to create interactive driving experiences Dec. 21, 2017
Application note LP8860-Q1 End-of-Line Programming guide of EEPROM Dec. 14, 2017
Application note PCB Layout Guideline for Automotive LED Drivers Apr. 07, 2017
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
Technical articles Take better selfies with innovative LED flashes Nov. 18, 2014
Technical articles Solving the automotive EMI issues in new cars with all the screens Sep. 10, 2014
User guide LP8860-Q1EVM User's Guide (Rev. A) Jun. 12, 2014

Design & development

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

Hardware development


The LP8860-Q1EVM evaluation module helps designers evaluate the operation and performance of LP8860-Q1 - high efficiency automotive LED driver for LCD backlighting. In order to facilitate ease of testing and evaluation of this circuit, the EVM contains a TI MSP430 microprocessor to provide easy (...)

  • 3V-40V input range
  • 48V maximum boost output voltage
  • True dimming ratio 1:13000 
  • Power supply connections for the VIN and VDD and test points for the each signal
  • Evaluation software

Software development

Linux Driver for LP8860-Q1
LP8860SW-LINUX The Linux driver supports the LP8860 4-Channel LED Driver. The Linux driver supports communication through the I2C bus and interfaces with the LED sub-system.


Linux Mainline Status

Available in Linux Main line: Yes
Available through N/A

Supported Devices:

  • lp8860


Linux Source Files

The files (...)

SNVC156A.ZIP (656 KB)

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
  • (...)

Reference designs

Automotive TFT LCD Display Solution
TIDA-00169 This reference design implements a video over LVDS solution for automotive infotainment applications.It highlights the support of multi-touch with haptic feedback, LCD backlight control, and ambient light sensing, without the introduction of dedicated support lines back to the host processor. This (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
HLQFP (VFP) 32 View options

Ordering & quality

Information included:
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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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