TLD5501-2QV数据手册Infineon中文资料规格书

描述 Description

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.

特性 Features

• 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

优势:

应用 Application

• 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