LP8867C-Q1 Series

Highly-integrated 4-channel 120-mA automotive LED driver with power line FET protection

Catalog

Highly-integrated 4-channel 120-mA automotive LED driver with power line FET protection

Part	Dimming	Grade	Type	Voltage - Output [Max]	Voltage - Output [Min]	Frequency [Max]	Frequency [Min]	Applications	Supplier Device Package	Qualification	Mounting Type	Current - Output / Channel	Topology	Number of Outputs	Package / Case	Package / Case [custom]	Package / Case	Voltage - Supply (Max) [Max]	Voltage - Supply (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]
Texas Instruments LP8867CQPWPRQ1	PWM	Automotive	DC DC Regulator	45 V	6 V	2.2 MHz	300 kHz	Backlight	20-HTSSOP	AEC-Q100	Surface Mount	120 mA	SEPIC Step-Up (Boost)	3	20-PowerTSSOP	4.4 mm	0.173 in	45 V	4.5 V	-40 °C	125 °C
Texas Instruments LP8867Q1EVM
Texas Instruments LP8867QPWPRQ1	PWM	Automotive	DC DC Regulator	45 V	6 V	2.2 MHz	300 kHz	Backlight	20-HTSSOP	AEC-Q100	Surface Mount	120 mA	SEPIC Step-Up (Boost)	3	20-PowerTSSOP	4.4 mm	0.173 in	45 V	4.5 V	-40 °C	125 °C

Catalog

Highly-integrated 4-channel 120-mA automotive LED driver with power line FET protection

Key Features

• AEC-Q100 Qualified for automotive applications:Device temperature grade 1:–40°C to +125°C, TAFunctional safety capableDocumentation available to aid functional safety system design3-, 4-Channel 120-mA current sinksHigh dimming ratio of 10 000:1 at 100 HzCurrent matching 1% (typical)LED String current up to 120 mA per channelOutputs can be combined externally for higher current per stringIntegrated boost and SEPIC converter for LED string powerInput voltage operating range 4.5 V to 40 VOutput voltage up to 45 VIntegrated 3.3-A Switch FETSwitching frequency 300 kHz to 2.2 MHzSwitching synchronization inputSpread spectrum for lower EMIFault detection and protectionFault outputInput voltage OVP, UVLO and OCPBoost block SW OVP and output OVPLED open and short fault detectionPower-Line FET control for battery bus protectionAutomatic LED current reduction with external temperature sensorThermal shutdownAEC-Q100 Qualified for automotive applications:Device temperature grade 1:–40°C to +125°C, TAFunctional safety capableDocumentation available to aid functional safety system design3-, 4-Channel 120-mA current sinksHigh dimming ratio of 10 000:1 at 100 HzCurrent matching 1% (typical)LED String current up to 120 mA per channelOutputs can be combined externally for higher current per stringIntegrated boost and SEPIC converter for LED string powerInput voltage operating range 4.5 V to 40 VOutput voltage up to 45 VIntegrated 3.3-A Switch FETSwitching frequency 300 kHz to 2.2 MHzSwitching synchronization inputSpread spectrum for lower EMIFault detection and protectionFault outputInput voltage OVP, UVLO and OCPBoost block SW OVP and output OVPLED open and short fault detectionPower-Line FET control for battery bus protectionAutomatic LED current reduction with external temperature sensorThermal shutdown

Description

The LP8867C-Q1, LP8869C-Q1 is an automotive highly-integrated, low-EMI, easy-to-use LED driver with DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four or three high-precision current sinks that can be combined for higher current capability. The DC-DC converter has adaptive output voltage control based on the LED forward voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the LP886xC-Q1 to avoid disturbance for sensitive frequency band. The input voltage range for the LP886xC-Q1 is from 4.5 V to 40 V to support automotive stop, start and load dump condition. The LP886xC-Q1 integrates extensive fault detection features. The LP8867C-Q1, LP8869C-Q1 is an automotive highly-integrated, low-EMI, easy-to-use LED driver with DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four or three high-precision current sinks that can be combined for higher current capability. The DC-DC converter has adaptive output voltage control based on the LED forward voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the LP886xC-Q1 to avoid disturbance for sensitive frequency band. The input voltage range for the LP886xC-Q1 is from 4.5 V to 40 V to support automotive stop, start and load dump condition. The LP886xC-Q1 integrates extensive fault detection features.