LP8863-Q1 LP8863-Q1 Automotive Display LED-Backlight Driver With Six 150-mA Channels | TI.com

LP8863-Q1 (ACTIVE) LP8863-Q1 Automotive Display LED-Backlight Driver With Six 150-mA Channels

 

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.

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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Parametrics

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Part number Order 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
LP8863-Q1 Order now Boost Controller
Sepic Controller    
6     3     48     7     48     0.9     10     150     2200     -40 to 125     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    
Backlight     HTSSOP | 38     38HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 38)     Automotive    
LP8860-Q1 Order now Boost Controller     4     3     48     2     48     0.6     2.5     150     2200     -40 to 125     Adjustable Switch Frequency
Boost Sync
Fault Diagnostic
Hybrid Dimming/Phase Shift
I2C Control
Spread Spectrum    
Backlight
Dome
Foot Well    
HLQFP | 32     32HLQFP: 81 mm2: 9 x 9 (HLQFP | 32)     Automotive    
LP8861-Q1 Order now Boost
Sepic    
4     4.5     40     7     40     0.4     5     100     2200     -40 to 125     Adjustable Switch Frequency
Boost Sync
Fault Detection
Power-Line FET
Sepic Sync
Spread Spectrum
Temperature Compensation    
Backlight
Dome
Foot Well    
HTSSOP | 20     20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)     Automotive    
TPS61193-Q1 Order now Boost
Sepic    
3     4.5     40     6     45     0.1     5     100     2200     -40 to 125     Boost Sync
Spread Spectrum    
Backlight     HTSSOP | 20     20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)     Automotive    
TPS61194-Q1 Order now Boost
Sepic    
4     4.5     40     6     40     0.4     5     100     2200     -40 to 125     Boost Sync
Spread Spectrum    
Backlight     HTSSOP | 20     20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)     Automotive    
TPS61196-Q1 Order now Boost     6     8