The TPS92391 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 TPS92391 to avoid disturbance for AM radio
band.
The TPS92391 supports built-in hybrid PWM dimming and
analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total
optical efficiency.
The TPS92391 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 TPS92391 to avoid disturbance for AM radio
band.
The TPS92391 supports built-in hybrid PWM dimming and
analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total
optical efficiency.