User Manual
4 of 18
Rev.1.00
2020-05-25
TLD5542-1IVREG-EVAL evaluation board
User Manual
Quick start procedure
3
Quick start procedure
Below, step by step procedures are laid out for setup and running the TLD5542-1IVREG-EVAL in all available
configurations.
Installation procedure for PC GUI (graphical user interface) and μIO stick interface is described from Chapter 4.
3.1
Setup as LED driver limp home mode (microcontroller-less)
The following is the simplest configuration, in order to start evaluating the TLD5542-1 without a
microcontroller connection, and without µIO stick. In limp home all the registers are set to their default value,
and the analog dimming is provided by the voltage on the SET pin (adjustable with RSET trimmer).
1.
Configure solder jumper for LED driver configuration: Figure 4
2.
Connect LHI (limp home), J_EN (Enable) and J_PWMI jumpers
Figure 4
Connect loads and set jumpers for limp home
3.
Connect the LED load
4.
Connect a 12 V power supply to the
V
IN
connector → the LED should turn on indicating
I
VCC
present
5.
Adjust
I
OUT
with RSET (>150 mA suggested for better accuracy and transient response)
Figure 5
Connect power supply and adjust LED current