LP8863-Q1 Series

LP8863-Q1 Automotive Display LED-Backlight driver with Six 150-mA channels

Catalog

LP8863-Q1 Automotive Display LED-Backlight driver with Six 150-mA channels

Part	Number of Outputs	Frequency [Max]	Frequency [Min]	Voltage - Supply (Max) [Max]	Supplier Device Package	Voltage - Supply (Min) [Min]	Type	Mounting Type	Topology	Dimming	Applications	Grade	Current - Output / Channel	Internal Switch(s)	Qualification	Package / Case	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Features	Outputs and Type	Outputs and Type	Utilized IC / Part	Supplied Contents
Texas Instruments LP8863ADCPRQ1	6	2.2 MHz	300 kHz	48 V	38-HTSSOP	3 V	DC DC Controller	Surface Mount	Step-Up (Boost)	PWM	Backlight	Automotive	150 mA		AEC-Q100	0.173 in 4.4 mm	38-PowerTFSOP	-40 °C	125 °C
Texas Instruments LP8863EVM													120 mA							Dimmable	Non-Isolated	1	LP8863-Q1	Board(s) Cable(s)

Catalog

LP8863-Q1 Automotive Display LED-Backlight driver with Six 150-mA channels

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureInput Voltage Operating Range 3 V to 48 VSix High-Precision Current SinksCurrent Matching 1% (typical)Dimming Ratio 32 000:1 Using 152-Hz LED Output PWM FrequencyUp to 16-bit LED Dimming Resolution With SPI, I2C, or PWM InputAutomatically Detects Used LED Strings and Adjusts LED-Channel Phase ShiftIndependent Current Control for Each ChannelHybrid PWM and Current Dimming FunctionUp to 47-V VOUTBoost or SEPIC DC/DC ControllerSwitching Frequency 300 kHz to 2.2 MHzBoost Spread Spectrum for Reduced EMIBoost Sync Input to Set Boost Switching Frequency From an External ClockIntegrated Charge Pump Supports Low VINConditions Such as Cold CrankOutput Voltage Automatically Discharged When Boost is DisabledExtensive Fault DiagnosticsQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following Results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureInput Voltage Operating Range 3 V to 48 VSix High-Precision Current SinksCurrent Matching 1% (typical)Dimming Ratio 32 000:1 Using 152-Hz LED Output PWM FrequencyUp to 16-bit LED Dimming Resolution With SPI, I2C, or PWM InputAutomatically Detects Used LED Strings and Adjusts LED-Channel Phase ShiftIndependent Current Control for Each ChannelHybrid PWM and Current Dimming FunctionUp to 47-V VOUTBoost or SEPIC DC/DC ControllerSwitching Frequency 300 kHz to 2.2 MHzBoost Spread Spectrum for Reduced EMIBoost Sync Input to Set Boost Switching Frequency From an External ClockIntegrated Charge Pump Supports Low VINConditions Such as Cold CrankOutput Voltage Automatically Discharged When Boost is DisabledExtensive Fault Diagnostics

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. 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.