Description:
●The TLD5190QV is a synchronous MOSFET H-Bridge DC/DC controller with built in protection features. This concept of a synchronous and seamless buck-boost regulation provides a very efficient solution for circuits where the output (load) voltage is on the same level as the input voltage, e.g. in short chains with 2 to 3 high power LEDs or laser diodes connected to a 12 V electrical system.
●Thanks to the flexibility to be used in current and in voltage mode it is also a perfect device for powering non LED applications like USB and mobile wireless charger or as multipurpose pre-regulation like for infotainment.
●As it comes without SPI it is also ideal for all application where a basic feature set is sufficient or where a Microcontroller is not used.
●Summary of Features:
● MOSFET H-Bridge with Single Inductor DC/DC Controller for high power BUCK-BOOST LED control
● Constant Current and Constant Voltage Regulation
● Wide VIN Range (Device 4.5V to 40V, Power Stage 4.5V to 55V)
● Wide LED forward voltage Range (2V up to 55V)
● LED current accuracy+/-3% at Tj=25° and 4% over the whole automotive temperature range
● Switching Frequency Range from 200 kHz to 700 kHz
● Maximum Efficiency in every condition (up to 96%)
● Flexible current sense (Highside or Lowside)
● EMC optimized device: Features an auto Spread Spectrum concept to ensure best in class EMC performance
● Open Load, Overvoltages, Shorted LED fault and Overtemperature Diagnostic Outputs
● LED and Input current sense with dedicated monitor Outputs
● Smart power protection features for device and load (open load, short of Load, Overtemperature)
● Capability to supply Gate Drivers via external Voltage Regulator
● Adjustable Soft Start
● Enhanced Dimming features to adjust average LED current and PWM dimming
● Available in a small thermally enhanced VQFN-48-31 package
● Automotive AEC Qualified
