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Product details

Parameters

Topology Boost Controller, Sepic Controller Channels (#) 6 Vin (Min) (V) 3 Vin (Max) (V) 48 Vout (Min) (V) 7 Vout (Max) (V) 48 Iout (Max) (A) 0.9 Iq (Typ) (mA) 15 LED current per channel (mA) 150 Switching frequency (Max) (kHz) 2200 Operating temperature range (C) -40 to 125 Features Adjustable Switch Frequency, Boost Sync, Enable/Shutdown, Fault Diagnostic, Hybrid Dimming/Phase Shift, I2C Control, Power-Line FET, Precision Dimming Control, Soft Start, Spread Spectrum Applications 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

  • 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
  • Six High-Precision Current Sinks
    • Current Matching 1% (typical)
    • Dimming Ratio 32 000:1 Using 152-Hz LED Output PWM Frequency
    • Up to 16-bit LED Dimming Resolution With SPI, I2C, or PWM Input
    • Automatically Detects Used LED Strings and Adjusts LED-Channel Phase Shift
    • Independent Current Control for Each Channel
  • Hybrid PWM and Current Dimming Function
  • Up to 47-V VOUT Boost or SEPIC DC/DC Controller
    • Switching Frequency 300 kHz to 2.2 MHz
    • Boost Spread Spectrum for Reduced EMI
    • Boost Sync Input to Set Boost Switching Frequency From an External Clock
    • Integrated Charge Pump Supports Low VIN Conditions Such as Cold Crank
    • Output Voltage Automatically Discharged When Boost is Disabled
  • Extensive Fault Diagnostics

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Description

The LP8863-Q1 is an automotive high-efficiency LED driver with boost controller. The six high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. Current sink brightness can be controlled individually and globally through the SPI or I2C interface; brightness can also be globally controlled with 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 voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8863-Q1 to avoid disturbance for AM radio band.

The LP8863-Q1 supports built-in hybrid PWM and current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

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Technical documentation

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
$249.00
GUIS FOR EVALUATION MODULES (EVM) Download
SNVC209.ZIP (4571 KB)

Design tools & simulation

SIMULATION MODELS Download
SNVMB63.ZIP (283 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Optical Sense Backlight Reference Design with Temperature Sensing
TIDA-01008 — This reference design conserves power and extends life of LCD and backlight by adjusting the backlight brightness relative to the ambient light level. The capTIvate touch slider allows the brightness to be finetuned per the user's brightness preference. The sensitive thermal requirements of the LCD (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HTSSOP (DCP) 38 View options

Ordering & quality

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