1 Overview
The TPL1401EVM is an easy-to-use platform to evaluate the functionality and performance of the TPL1401
device. The TPL1401 is a digital potentiometer (DPOT) with buffered wiper. The buffered wiper isolates the
resistor string from the output load impedance making the TPL1401 an excellent choice for voltage divider and
analog setpoint applications. The TPL1401 consumes very low power and is available in a tiny 8- pin WSON
package. The NVM also supports 2 bytes of user data storage for storing configuration revision data or
calibration settings of companion devices. The DPOT uses the power supply as the voltage reference, which can
operate between 1.8 V and 5.5 V. In this power supply range, the DPOT can be used as a programmable gain or
attenuation device. This device supports I2C standard mode, fast mode, and fast+ mode. The TPL1401 provides
the FB pin to configure the output as a programmable current sink using an external MOSFET. The TPL1401 is
simple to program using an I2C interface at factory or in real-time. An integrated nonvolatile memory (NVM)
enables factory programming for trimming and calibration applications. This makes the operation of the DPOT
processor-less. The EVM provides the GPIO and I
2
C programming interface using a PC-based graphical user
interface (GUI).
1.1 Kit Contents
details the contents of the EVM kit. Contact the TI Product Information Center nearest you if any
component is missing. TI highly recommends that the user verify latest versions of the related software at the TI
website,
.
Table 1-1. Contents of TPL1401EVM Kit
Item
Quantity
TPL1401EVM evaluation board PCB
1
Table 1-2. Required Components Not Included With Kit
Item
Quantity
BOOSTXL-DAC-PORT
1
MSP-EXP432E401Y Launchpad
™
(Analog EVM Controller)
1
The Analog EVM Controller can be purchased from
on www.ti.com.
1.2 Related Documentation from Texas Instruments
The following document provides information regarding Texas Instruments integrated circuits used in the
assembly of the TPL1401EVM. This user's guide is available from the TI web site under literature number
SLAU805. Any letter appended to the literature number corresponds to the document revision that is current at
the time of the writing of this document. Newer revisions may be available from the TI web site at http://
www.ti.com/, or call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product
Information Center at (972) 644-5580. When ordering, identify the document by both title and literature number.
Table 1-3. Related Documentation
Document
Literature Number
product data sheet
Overview
4
TPL1401 Evaluation Module
SNAU257 – OCTOBER 2020
Copyright © 2020 Texas Instruments Incorporated
