This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only,

See Technical Specifications

LP8866QDCPRQ1

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

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LP8866QDCPRQ1
Datasheet:

LP8866QDCPRQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Type:

DC DC Controller
Topology:

SEPIC, Step-Up (Boost)
Internal Switch(s):

Yes
EDA/CAD Models:

Request Free CAD Models for LP8866QDCPRQ1

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

LP8866QDCPRQ1 General Description

The LP8866-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. 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 LP8866-Q1 to avoid disturbance for AM radio band.

The LP8866-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

Key Features

AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C, T_A
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
Input voltage operating range 3 V to 48 V
Six high-precision current sinks
- Up to 200-mA DC current for each current sink
- Current matching 1% (typical)
- Dimming ratio 32 000:1 using 152-Hz LED output PWM frequency
- Up to 16-bit LED dimming resolution with I2C, or PWM input
- 8 Configurable LED strings configuration
Auto-phase shift PWM dimming
12-bit Analog dimming
Up to 48-V V_OUT boost or SEPIC DC/DC controller
- Switching frequency 100 kHz to 2.2 MHz
- Boost spread spectrum for reduced EMI
- Boost sync input to set boost switching frequency from an external clock
- Output voltage automatically discharged when boost is disabled
Extensive fault diagnostics

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)LED Drivers	Series	Automotive, AEC-Q100
Type	DC DC Controller	Topology	SEPIC, Step-Up (Boost)
Internal Switch(s)	Yes	Number of Outputs	6
Voltage - Supply (Min)	3V	Voltage - Supply (Max)	48V
Voltage - Output	0V ~ 48V	Current - Output / Channel	200mA
Frequency	100kHz ~ 2.2MHz	Dimming	PWM
Applications	Automotive, Backlight	Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount	Base Product Number	LP8866