TPS61194PWPRQ1 Description

The TPS61194PWPRQ1 is an automotive high-efficiency, low-EMI, easy-to-use LED driver with integrated DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four high-precision current sinks that can be combined for higher current capability.
The DC-DC converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the TPS61194PWPRQ1 to avoid disturbance for AM radio band.
TPS61194PWPRQ1 Features

● Input Voltage Operating Range 4.5 V to 40 V
● High Dimming Ratio of 10 000:1 at 100 Hz
● Integrated Boost/SEPIC Converter for LED String Power
◆ Output Voltage up to 45 V
◆ Switching Frequency 300 kHz to 2.2 MHz
◆ Switching Synchronization Input
◆ Spread Spectrum for Lower EMI
● Extensive Fault Detection Features

◆ Fault Output
◆ Input Voltage OVP and UVLO
◆ Open and Shorted LED Fault Detection
◆ Thermal Shutdown
● Minimum Number of External Components
TPS61194PWPRQ1 Applications

● Automotive Applications

● Backlight for:
◆ Automotive Infotainment
◆ Automotive Instrument Clusters
◆ Smart Mirrors
◆ Heads-Up Displays (HUD)
◆ Central Information Displays (CID)
◆ Audio-Video Navigation (AVN)
● 5G Communication
● Electrification of automobile
● Industrial 4.0