Specification	LP8864SQDCPRQ1

Applications	Backlight
Current - Output / Channel	150 mA
Dimming	PWM
Frequency [Max]	2.2 MHz
Frequency [Min]	100 kHz
Grade	Automotive
Internal Switch(s)	True
Mounting Type	Surface Mount
Number of Outputs	4
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	0.173 in, 4.4 mm
Package / Case	38-PowerTFSOP
Qualification	AEC-Q100
Supplier Device Package	38-HTSSOP
Topology	SEPIC, Step-Up (Boost)
Type	DC DC Controller
Voltage - Output [Max]	48 V
Voltage - Output [Min]	0 VDC
Voltage - Supply (Max) [Max]	48 V
Voltage - Supply (Min) [Min]	3 V

LP8864S-Q1 Series

Automotive display LED-backlight driver with four 200-mA channels

Part	Current - Output / Channel	Grade	Applications	Type	Qualification	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs	Voltage - Supply (Max)	Supplier Device Package	Topology	Dimming	Frequency [Min]	Frequency [Max]	Package / Case	Voltage - Output [Min]	Voltage - Output [Max]	Voltage - Supply (Min) [Min]	Voltage - Input [Min]	Voltage - Input [Max]	Voltage - Output	Supplied Contents	Utilized IC / Part	Outputs and Type	Outputs and Type	Features	Voltage - Supply (Max) [Max]	Package / Case
Texas Instruments LP8864SQRHBRQ1	150 mA	Automotive	Backlight	DC DC Controller	AEC-Q100	Surface Mount Wettable Flank	-40 °C	125 °C	4	5.5 V	32-VQFN (5x5)	SEPIC Step-Up (Boost)	Analog I2C PWM	100 kHz	2.2 MHz	32-VFQFN Exposed Pad	0 VDC	48 V	3 V
Texas Instruments LP8864EVM	200 mA																			3 V	48 V	48 V	Board(s) Cable(s)	LP8864-Q1	4	Non-Isolated	Dimmable
Texas Instruments LP8864QDCPRQ1	200 mA	Automotive	Backlight	DC DC Controller	AEC-Q100	Surface Mount	-40 °C	125 °C	4		38-HTSSOP	SEPIC Step-Up (Boost)	PWM	100 kHz	2.2 MHz	38-PowerTFSOP	0 VDC	48 V	3 V									48 V	0.173 in 4.4 mm
Texas Instruments LP8864SQDCPRQ1	150 mA	Automotive	Backlight	DC DC Controller	AEC-Q100	Surface Mount	-40 °C	125 °C	4		38-HTSSOP	SEPIC Step-Up (Boost)	PWM	100 kHz	2.2 MHz	38-PowerTFSOP	0 VDC	48 V	3 V									48 V	0.173 in 4.4 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.16
		10	$ 2.84
		25	$ 2.68
		100	$ 2.32
		250	$ 2.20
		500	$ 1.98
		1000	$ 1.67
	Digi-Reel®	1	$ 3.16
		10	$ 2.84
		25	$ 2.68
		100	$ 2.32
		250	$ 2.20
		500	$ 1.98
		1000	$ 1.67
	Tape & Reel (TR)	2000	$ 1.48
Texas Instruments	LARGE T&R	1	$ 2.38
		100	$ 2.09
		250	$ 1.46
		1000	$ 1.18

Description

General part information

LP8864S-Q1 Series

The LP8864S-Q1 is an automotive high-efficiency LED driver with boost controller. The Four high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or 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 boost voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8864S-Q1 to avoid disturbance for AM radio band.

The LP8864S-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

Documents

Technical documentation and resources

Datasheet

LP886x-Q1 Feedback Resistor Design Considerations

Application note

LP8864-Q1, LP8864S-Q1, LP8866-Q1, and LP8866S-Q1 Diagnostic Description and Faul

Application note