TLD5501-2QV

综述

描述:

The TLD5501-2QV is a synchronous Dual-Channel Buck DC/DC controller with built in protection features and SPI interface. The synchronous concept is beneficial for driving high power LEDs with maximum system efficiency or to provide a high power constant voltage supply for lighting and non-lighting application. To give maximum flexibility for different applications both DC/DC channels of the TLD5501-2QV can be operated separately or in multiphase.

特征描述:

Dual-Channel synchronous Buck DC/DC Controller
Constant Current and Constant Voltage Regulation
Individual channel or Multiphase operation
Wide VIN Range (Device 4.5V to 40V, Power Stage 4.5V to 55V)
Wide LED forward voltage Range (2V to 50V)
LED current accuracy+/-3% at Tj=25° and 5% over the whole automotive temperature range
Switching Frequency Range from 200 kHz to 700 kHz
16bit SPI for diagnostics and control, providing daisy chain capability
Maximum Efficiency in every condition (up to 96%)
Limp Home Function (Fail Safe Mode)
Flexible current sense (Highside or Lowside)
EMC optimized device: Features an auto Spread Spectrum concept to ensure best in class EMC performance
Provides output current accuracy calibration for improved system accuracy
LED current sense with dedicated monitor Output
Adjustable soft start feature to limit the current peak and the voltage overshoot at start-up
Smart power protection features for device and load (open load, short of Load, Overtemperature)
Enhanced Dimming features to adjust average LED current and PWM dimming
Available in a small thermally enhanced PG-VQFN-48-31 package
Automotive AEC Qualified

目标应用:

Especially designed for driving high power LEDs and Laser modules in automotive applications with very high efficiency
Power supply for high power Matrix and Pixel light sources e.g. LED or Laser modules for DMD or parallel LED Matrix arrays
Non LED applications even with currents of >10A like USB, mobile wireless charger and multipurpose pre-regulation like for camera modules
General purpose current/voltage controlled DC/DC LED driver