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 VOUT 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
Description for the LP8864S-Q1
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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is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.
Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.TI often ships
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