Infineon TLD5542-1IVREG-EVAL, User Manual, Page: 3 / 18

User Manual 3 of 18 Rev.1.00
2020-05-25
TLD5542-1IVREG-EVAL evaluation board
User Manual
Description
2 Description
The H-Bridge architecture is among the most efficient buck-boost topologies for high current applications. The
TLD5542-1 provides complete control and diagnostics through the SPI interface.
The device can be used in microcontroller-less applications, because of the limp home mode.
The TLD5542-1IVREG-EVAL is an evaluation platform for the TLD5542-1 as LED driver or voltage regulator.
The default configuration is constant current LED driver with 1.5 A maximum output current. The output current
can be increased up to 6A by changing RSHO. If higher currents are needed, the output filter has to be bypassed.
Figure 2 TLD5542-1 as LED driver
By reconfiguring a few solder jumps, the board becomes a powerful voltage regulator.
Figure 3 TLD5542-1 as voltage regulator
On the board, in addition the following are present:
 16-pin 2.54 mm pitch connector for µIO interface or external microcontroller interface

Limp home jumper for microcontroller-less operation

Trimmer to adjust output voltage when set as voltage regulator

Trimmer to adjust output current when set as LED driver and limp home