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TPS92390

ACTIVE

Boost/SEPIC high dimming performance LED driver with four 200-mA channels

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Data sheet

TPS92390

ACTIVE
Data sheet Order now

Product details

Number of channels 4 Vin (min) (V) 3 Vin (max) (V) 48 Vout (min) (V) 0 Vout (max) (V) 48 Switching frequency (max) (kHz) 2200 LED current per channel (mA) 200 Topology Boost, Current Sink Features Adjustable Switch Frequency, Analog Dimming, Analog/PWM mixed dimming, Direct PWM Dimming, Enable/Shutdown, Fault Detection, I2C control, OVP, PWM control, Programmable output current, Soft Start, Thermal shutdown Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 4 Vin (min) (V) 3 Vin (max) (V) 48 Vout (min) (V) 0 Vout (max) (V) 48 Switching frequency (max) (kHz) 2200 LED current per channel (mA) 200 Topology Boost, Current Sink Features Adjustable Switch Frequency, Analog Dimming, Analog/PWM mixed dimming, Direct PWM Dimming, Enable/Shutdown, Fault Detection, I2C control, OVP, PWM control, Programmable output current, Soft Start, Thermal shutdown Operating temperature range (°C) -40 to 125 Rating Catalog
VQFN (RHB) 32 25 mm² 5 x 5
  • Input voltage operating range 3 V to 48 V
  • Four high-precision current sinks
    • Up to 200-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
  • 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
  • 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
  • Extensive fault diagnostics
  • Input voltage operating range 3 V to 48 V
  • Four high-precision current sinks
    • Up to 200-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
  • 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
  • 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
  • Extensive fault diagnostics

The TPS92390 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 TPS92390 to avoid disturbance for AM radio band.

The TPS92390 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

The TPS92390 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 TPS92390 to avoid disturbance for AM radio band.

The TPS92390 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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TPS92391 ACTIVE Boost/SEPIC high dimming performance LED driver with six 200-mA channels TPS92390 and TPS92391 are hardware compatible

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* Data sheet TPS92390 Boost/SEPIC High Dimming Performance LED Driver with Four 200-mA Channels datasheet PDF | HTML 11 Mar 2021

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Evaluation board

LP8864EVM — LP8864-Q1 4-channel automotive display LED driver evaluation module

The LP8864EVM helps designers to evaluate the characteristics, operation, and performance of the LP8864(S)-Q1 product a 4-channel high-efficiency LED driver for automotive display LED backlighting. The LP8864(S)-Q1 product integrates a boost or SEPIC controller and four high-precision current (...)
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