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Product details

Parameters

Topology Boost with Current Sink, Sepic Controller Channels (#) 4 Vin (Min) (V) 3 Vin (Max) (V) 48 Vout (Min) (V) 0 Vout (Max) (V) 48 Iout (Max) (A) 20 LED current per channel (mA) 200 Operating temperature range (C) -40 to 125 Applications LCD Backlight Rating Automotive open-in-new Find other Automotive LED drivers

Package | Pins | Size

HTSSOP (DCP) 38 43 mm² 9.7 x 4.4 open-in-new Find other Automotive LED drivers

Features

  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, TA
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Input voltage operating range 3 V to 48 V
  • high-precision current sinks
    • Up to -mA DC current for each current sink
    • Current matching 1% (typical)
    • Dimming ratio 32 000:1 using 152-Hz LED output PWM frequency
    • Up to 16-bit LED dimming resolution with I2C, or PWM input
    • 8 Configurable LED strings configuration
  • Auto-phase shift PWM dimming
  • 12-bit Analog dimming
  • Up to 48-V VOUT boost or SEPIC DC/DC controller
    • Switching frequency 100 kHz to 2.2 MHz
    • Boost spread spectrum for reduced EMI
    • Boost sync input to set boost switching frequency from an external clock
    • Output voltage automatically discharged when boost is disabled
  • Extensive fault

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open-in-new Find other Automotive LED drivers

Description

The is high-efficiency LED driver with boost controller. The high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.

The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions.

The supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

open-in-new Find other Automotive LED drivers
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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet LP8864-Q1 Automotive Display LED-backlight with Four 200-mA Channels datasheet Aug. 07, 2020
Application notes LP8864-Q1, LP8864S-Q1, LP8866-Q1, and LP8866S-Q1 Diagnostic Description and Faul Jul. 16, 2020
More literature LP8864EVM EU Declaration of Conformity (DoC) Jun. 04, 2020
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

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

The LP8866EVM helps designers to evaluate the characteristics, operation, and performance of the LP8866(S)-Q1 device, a 6-channel high-efficiency LED driver for automotive display LED backlighting. The LP8866(S)-Q1 device integrates a boost or SEPIC controller and six high-precision current sinks (...)

Features
  • Input voltage range 3 V to 48 V
  • Up to 48-V Vout boost controller
  • Six high-precision current sinks
  • Supports built-in phase-shift PWM dimming, hybrid dimming, current dimming and direct PWM dimming mode
  • LED brightness controlled globally through I2C interface or PWM input
  • Extensive fault diagnostics

Design tools & simulation

SIMULATION TOOLS Download
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 (...)
Features
  • 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
HTSSOP (DCP) 38 View options

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