infineon TLD6098 LITIX Power Multitoplology Single Channel DC DC Controller
About this document
Product Description
The TLD6098-1EP is an AEC-qualified DC-DC boost controller, specially designed to drive LEDs. It embeds:
- Built-in diagnosis and protection features
- Pulse width modulator to implement a dimming function with reduced color shifting
- Coded faults to easily detect the root cause of load failures
- Voltage loop availability to implement constant output voltage power supply
The device also incorporates a spread spectrum modulator to reduce electromagnetic emissions outside the allowed bands.
Scope and purpose
Scope of this user guide is to provide instructions on use of the TLD6098-12B_EVAL board.
Intended audience
Hardware engineers, software engineers, system architects
Evaluation Board
This board is to be used during the design-in process for evaluating and measuring characteristic curves, and for checking datasheet specifications.
Note: PCB and auxiliary circuits are NOT optimized for final customer design.
Important notice
“Evaluation Boards and Reference Boards” shall mean products embedded on a printed circuit board (PCB) for demonstration and/or evaluation purposes, which include, without limitation, demonstration, reference and evaluation boards, kits and design (collectively referred to as “Reference Board”).
- Environmental conditions have been considered in the design of the Evaluation Boards and Reference Boards provided by Infineon Technologies. The design of the Evaluation Boards and Reference Boards has been tested by Infineon Technologies only as described in this document. The design is not qualified in terms of safety requirements, manufacturing and operation over the entire operating temperature range or lifetime.
- The Evaluation Boards and Reference Boards provided by Infineon Technologies are subject to functional testing only under typical load conditions. Evaluation Boards and Reference Boards are not subject to the same procedures as regular products regarding returned material analysis (RMA), process change notification (PCN) and product discontinuation (PD).
- Evaluation Boards and Reference Boards are not commercialized products, and are solely intended for evaluation and testing purposes. In particular, they shall not be used for reliability testing or production. The Evaluation Boards and Reference Boards may therefore not comply with CE or similar standards (including but not limited to the EMC Directive 2004/EC/108 and the EMC Act) and may not fulfill other requirements of the country in which they are operated by the customer. The customer shall ensure that all Evaluation Boards and Reference Boards will be handled in a way which is compliant with the relevant requirements and standards of the country in which they are operated.
- The Evaluation Boards and Reference Boards as well as the information provided in this document are addressed only to qualified and skilled technical staff, for laboratory usage, and shall be used and managed according to the terms and conditions set forth in this document and in other related documentation supplied with the respective Evaluation Board or Reference Board.
- It is the responsibility of the customer’s technical departments to evaluate the suitability of the Evaluation Boards and Reference Boards for the intended application, and to evaluate the completeness and correctness of the information provided in this document with respect to such application.
- The customer is obliged to ensure that the use of the Evaluation Boards and Reference Boards does not cause any harm to persons or third party property. The Evaluation Boards and Reference Boards and any information in this document is provided “as is” and Infineon Technologies disclaims any warranties, express or implied, including but not limited to warranties of non-infringement of third party rights and implied warranties of fitness for any purpose, or for merchantability.
- Infineon Technologies shall not be responsible for any damages resulting from the use of the Evaluation Boards and Reference Boards and/or from any information provided in this document. The customer is obliged to defend, indemnify and hold Infineon Technologies harmless from and against any claims or damages arising out of or resulting from any use thereof.
- Infineon Technologies reserves the right to modify this document and/or any information provided herein at any time without further notice.
Safety precautions
Note: Please note the following warnings regarding the hazards associated with development systems
Table 1 Safety precautions
The board at a glance
TLD6098-12B EVAL is a PCB board designed to supply high power LED with TLD6098-1EP in boost topologies. It serves boost to ground and boost to battery configurations, depending on the load connection at the terminal X7.
In both configurations, the board can deliver up to 25 W. Auxiliary circuits are present and enabled to protect the DC-DC and the load during the short to ground failure.
Table 2 Performance summary
The output current is fixed by R2. Change this resistor if different output current is needed.
The overvoltage protection and the short to ground protection thresholds are defined by R4 and R7.
Scope of supply
The jumpers are positioned as follows:
Table 3 Jumper position
The default configuration is depicted below.
System and functional description
Current adjustment
- The output current adjustment is performed by adjusting the value of trimmer R14. The feature is enabled when the jumper X10 is closed.
- The output current can vary from 0% to 100% of the maximum output current. Jumpers are positioned as follows:
Table 4 Jumper position
Embedded PWM engine
The embedded PWM engine provides an internal PWM signal without any external dimming signal required. To enable the feature the jumper XDC is closed. RDC1 trimmer adjusts the dimming duty cycle by changing the voltage on the respective DC/PWMI pin. The PWM dimming frequency is set to 410 Hz. If another PWM frequency is needed, the respective RPWM1 and/or RPWM2 must be changed to a proper value (please refer to the TLD6098-1EP datasheet [1] for more information).
Jumpers are positioned as follows:
Table 5 Jumper position
External dimming and output adjustment
The analog output adjustment and the dimming signals can be provided by external sources. To enable the control from external sources the jumpers are positioned as follows:
Table 6 Jumper position
Faults
The system has been designed to use hard threshold for overvoltage detection. With this option, once the threshold is reached, the gate driver is disabled until the output voltage goes below the reset threshold. This behavior is selected with a resistor on FPWM/FAULT pin in range 18 kΩ to 90 kΩ (X3 closed in position 1-2).
In this case each fault type is reported by the FPWM/FAULT pin with a dedicated PWM waveform. Typical values for these waveforms are
Table 7 Coded PWM pulses on FPWM/FAULT pin
This feature is disabled if X3 is closed in position 2-3.
Boost to battery
TLD6098-12B_EVAL has been designed to work in boost to ground or boost to battery. The choice of the configuration depends on the load connection at the connector X7. Overvoltage and short to ground protections presented for boost to ground configuration are also available in boost to battery.
System design
Schematics
PCB Layout
Bill of material
Table 8 Bill of Material
References
Infineon: TLD6098-1EP Datasheet; https://www.infineon.com/cms/en/product/power/lighting-ics/litixautomotive-led-driver-ic/litix-power/tld6098-1ep/#!documents
Revision history
Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2024-03-06
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2024 Infineon Technologies AG.
All Rights Reserved.
Do you have a question about this document?
Email: erratum@infineon.com
Document reference
Z8F80416293
Warnings
Due to technical requirements, products may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies office. Except as otherwise explicitly approved by Infineon Technologies in a written document signed by authorized representatives of Infineon Technologies, Infineon Technologies’ products may not be used in any applications where a failure of the product or any consequences of the use thereof can reasonably be expected to result in personal injury.
Documents / Resources
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