LP8860-Q1 Automotive Low-EMI High-Performance 4-Channel LED Driver | TI.com

LP8860-Q1 (ACTIVE)

Automotive Low-EMI High-Performance 4-Channel LED Driver

 

Description

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.

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
  • 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.

View more

Parametrics Compare all products in Automotive LED drivers

 
Topology
Channels (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Iq (Typ) (mA)
LED current per channel (mA)
Switching Frequency (Max) (kHz)
Operating temperature range (C)
Features
Applications
Package Group
Package size: mm2:W x L (PKG)
Rating
LP8860-Q1 LP8861-Q1 LP8863-Q1 TPS61165 TPS61193-Q1 TPS61194-Q1 TPS61196 TPS61196-Q1 TPS61199
Boost Controller     Boost
Sepic    
Boost Controller
Sepic Controller    
Boost     Boost
Sepic    
Boost
Sepic    
Boost     Boost     Boost    
4     4     6     1     3     4     6     6     8    
3     4.5     3     3     4.5     4.5     8     8     8    
48     40     48     18     40     40     30     30     30    
2     7     7     3     6     6     8     120     8    
48     40     48     38     45     40     120     120     60    
0.6     0.4     0.9     1     0.1     0.4     1.2     0.2     0.56    
2.5     5     10     1.5     5     5     1.5     2     1.5    
150     100     150     400     100     100     200     200     70    
2200     2200     2200     1200     2200     2200     800     800     800    
-40 to 125     -40 to 125     -40 to 125     -40 to 85     -40 to 125     -40 to 125     -40 to 85     -40 to 125     -40 to 85    
Adjustable Switch Frequency
Boost Sync
Fault Diagnostic
Hybrid Dimming/Phase Shift
I2C Control
Spread Spectrum    
Adjustable Switch Frequency
Boost Sync
Fault Detection
Power-Line FET
Sepic Sync
Spread Spectrum
Temperature Compensation    
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    
EasyScale 1-Wire Interface
Load Disconnect During Shutdown    
Boost Sync
Spread Spectrum    
Boost Sync
Spread Spectrum    
OVP     Adjustable Switch Frequency     Adjustable Switch Frequency
Enable/Shutdown
OVP
PWM Control
Thermal Shutdown    
Backlight
Dome
Foot Well    
Backlight
Dome
Foot Well    
Backlight       Backlight     Backlight       Backlight      
HLQFP | 32     HTSSOP | 20     HTSSOP | 38     SOT-23 | 6
WSON | 6    
HTSSOP | 20     HTSSOP | 20