LP8863-Q1
LP8863-Q1 is Automotive Display LED-Backlight Driver manufactured by Texas Instruments.
ures
- 1 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 k Hz 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
Simplified Schematic
RISENSE Q2 L1 D1
VOUT
CIN...
