TPS92390RHBR LED driver TI original off the shelf

characteristic

Input voltage working range: 3V to 48V

Four high-precision current trap

DC current of each current well up to 200mA

Current matching degree is 1% (typical value)

When 152Hz LED is used to output PWM frequency, the dimming ratio is 32000:1

Maximum 16 bit LED dimming resolution when using I2C or PWM input

8 LED light strings can be configured

Automatic phase shifting PWM dimming

12 bit analog dimming

The switching frequency is 100kHz to 2.2MHz

Boost spread spectrum function can reduce EMI

Boost synchronous input, the boost switch frequency can be set through the external clock

Up to 48V VOUT boost or SEPIC DC/DC controller

The switching frequency is 100kHz to 2.2MHz

Boost spread spectrum function can reduce EMI

Boost synchronous input, the boost switch frequency can be set through the external clock

Multiple fault diagnosis functions

explain

TPS92390 is an automotive type efficient LED driver with boost controller. Four high-precision current wells support automatic adjustment of phase shift according to the number of channels used. Can be passed through I ² The C interface or PWM input controls the LED brightness globally.

The boost controller has adaptive output voltage control based on LED current well margin voltage. This feature can adjust the boost voltage to the lowest level required under all conditions, thus minimizing power consumption. With a wide range of adjustable frequencies, the TPS92390 avoids interference in the AM RF band.

The TPS92390 supports built-in hybrid PWM dimming and analog current dimming to reduce EMI, extend LED life, and improve overall optical efficiency.