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1 Introduction
The Texas Instruments TPS6116xEVM-243 evaluation module contains a TPS61160 or TPS61161
integrated circuit (IC), supporting active and passive components and either 6 or 10 white light-emitting
diodes (WLEDs) in series. The goal of this EVM is to facilitate evaluation of the TPS61160 or TPS61161
in a typical WLED application.
1.1 Performance Specification Summary
Table 1 provides a summary of the TPS6116xEVM-243 performance specifications. All specifications are
given for an ambient temperature of 25°C.
Table 1. Typical Performance Specification Summary
CONDITION MIN TYP MAX UNITS
V
IN
supply 9 18 V
CTRL=VIN, JP2 shorted 29.5 V
TPS61161
V
OUT
CTRL=VIN, JP2 open 37 38 39 V
CTRL=VIN, JP2 shorted 17.7
TPS61160
V
OUT
CTRL=VIN, JP2 open 25 26 27
I
OUT
JP2 shorted 19 20 21 mA
1.2 Modifications
To aid user customization of the EVM, the board was designed with devices having 0603 or larger
footprints. A real-world implementation should occupy less total board space.
The inductor and compensation components (R1, C2) were designed for the V
IN
range shown in Table 1.
Using a different input voltage range may require resizing of the inductor and/or the compensation
components. Also, changing components can improve or degrade EVM performance. For example, using
inductors with larger dc resistances lowers efficiency of the solution.
The other members of the TPS6116x IC family have the same footprint.
NOTE: When modifying the REV A version of this PCB, it is strongly recommended that you heat
the PCB on a hot plate before using a soldering iron to remove/replace components,
especially the input capacitor and inductor. Otherwise, the expansion when soldering and
contraction when cooling of the wide traces/places connecting these components to the IC
pins can damage the IC. For further explanation and guidance, see the TI application report
QFN/SON PCB Attachment (SLUA271).
2 Setup and Test Results
2.1 Input/Output Connections
The connection points are described in the following paragraphs.
2.1.1 J1-VIN
This header is the positive connection to the input power supply. Twist the leads to the input supply, and
keep them as short as possible.
2.1.2 J2-GND
This header is the return connection to the input power supply.
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TPS61160EVM-243/TPS61161EVM-243 SLVU221D–December 2007–Revised May 2013
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