RTQ4554-QT
RTQ4554-QT is Automotive Display 4-Channel LED Backlight Driver manufactured by Richtek.
Automotive Display 4-Channel LED Backlight Driver with I2C Interface
1 General Description
The RTQ4554-QT is a 4-channel LED driver capable of delivering 170mA for each channel with a DC-DC controller. The current-mode switching DC-DC controller supports boost or SEPIC topologies and operates in the 300kHz to 2.2MHz frequency range. The device accepts a wide 3V to 40V input voltage range and withstands direct automotive cold crank and load-dump events. The internal current sinks support a maximum of 3.5% current accuracy and mismatching for excellent brightness uniformity in each string of LEDs.
The RTQ4554-QT automatically detects and disconnects any unconnected and/or broken...
