LP8864S-Q1

ACTIVE

Automotive display LED-backlight with four 150-mA channels

Texas Instruments LP8864S-Q1 Product Info

1 April 2026 4

Parameters

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

Package

HTSSOP (DCP)-38-62.08 mm² 9.7 x 6.4

Features

AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C, TA
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
Input voltage operating range 3V to 48V
Four high-precision current sinks
- Up to 150mA DC current for each current sink
- Current matching 1% (typical)
- Dimming ratio 32 000:1 using 152Hz 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 48V VOUT boost or SEPIC DC/DC controller
- Switching frequency 100kHz to 2.2MHz
- 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

AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C, TA
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
Input voltage operating range 3V to 48V
Four high-precision current sinks
- Up to 150mA DC current for each current sink
- Current matching 1% (typical)
- Dimming ratio 32 000:1 using 152Hz 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 48V VOUT boost or SEPIC DC/DC controller
- Switching frequency 100kHz to 2.2MHz
- 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

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.

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ELECTRONIC COMPONENTS
All In One Distributor

LP8864S-Q1

Automotive display LED-backlight with four 150-mA channels

Texas Instruments LP8864S-Q1 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

LP8864S-Q1

Automotive display LED-backlight with four 150-mA channels

Texas Instruments LP8864S-Q1 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor