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See Technical Specifications

LP8864SQDCPRQ1

Automotive display LED-backlight with four 150-mA channels

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LP8864SQDCPRQ1
Datasheet:

LP8864SQDCPRQ1 Datasheet (PDF)
Number of channels:

4
Topology:

Boost with Current Sink, SEPIC
Rating:

Automotive
Operating temperature range (°C):

-40 to 125
EDA/CAD Models:

Request Free CAD Models for LP8864SQDCPRQ1

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LP8864SQDCPRQ1 General Description

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.

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
Four high-precision current sinks
- Up to 150-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

Number of channels	4	Topology	Boost with Current Sink, SEPIC
Rating	Automotive	Operating temperature range (°C)	-40 to 125
Vin (min) (V)	3	Vin (max) (V)	48
Vout (min) (V)	0	Vout (max) (V)	48
Iout (max) (A)	0.6	Iq (typ) (mA)	20
Switching frequency (max) (kHz)	2200	Features	Adjustable Switch Frequency, Boost Sync, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Short to Ground Detection, LED Shorted Detection, PWM Dimming, Power-Line FET, SEPIC Sync, Soft Start, Spread Spectrum, Thermal shutdown
feature-number-of-digits		feature-number-of-segments
feature-number-of-led-outputs		feature-topology
feature-process-technology		feature-input-output-type
feature-minimum-operating-supply-voltage-v		feature-maximum-operating-supply-voltage-v
feature-output-voltage-v		feature-maximum-supply-current-ua
feature-maximum-output-current-ma		feature-maximum-power-dissipation-mw
feature-packaging		feature-rad-hard
feature-pin-count	38	feature-cecc-qualified
feature-esd-protection		feature-military	No
feature-aec-qualified	Yes	feature-aec-qualified-number	AEC-Q100
feature-auto-motive	Yes	feature-p-pap	Yes
feature-eccn-code	EAR99	feature-svhc
feature-svhc-exceeds-threshold	No

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Ratings and Reviews

E**y 05/08/2024

Soundly, quickly, reliably!))

C**n 04/11/2024

It came within 5 days. In appearance, everything is fine. I'll check it out.

P**a 05/13/2023

The STM32F303K8T6 components I bought from Avaq are remarkable. They're absolutely genuine, in perfect condition, and worked flawlessly in my project. Highly recommended! - David L.

I**h 07/28/2021

Very good, good product, I recommend this seller!