Strengthening the link between the real and the digital worldTLD5501-2QV
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.
Summary of 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
Potential Applications
- 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
Infineon tools in one place
The Infineon Toolbox integrates helpful software for our customers. For product development please use the Config Wizard for LED.
Infineon Toolbox can be downloaded here: Download Infineon Toolbox
| Tool | Devices | Description |
|---|---|---|
| Config Wizard |
|
Easily configure LITIXTM Power Flex devices. A user guide can be found in the user manual of the board TLD5542-1IVREG-EVAL |
