Texas Instruments TPS2661EVM, User Manual, Page: 2 / 32

Table 4-3. Jumper and LED Descriptions.................................................................................................................................... 5
Table 5-1. Default Jumper Setting for TPS2661EVM eFuse Evaluation Board........................................................................... 7
Table 7-1. TPS2661EVM Bill of Materials.................................................................................................................................. 24
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1 Introduction
The TPS2661EVM allows reference circuit evaluation of the TPS26610 and TPS26612 current-loop protector
from TI. The TPS2661x device is a 50-V, universal (±20 mA, 0 to 20 mA, 4–20 mA) current-loop protector with
integrated fixed bipolar 30-mA current limit and output overvoltage protection. The device provides protection
against miswiring conditions on input/output and offers robust signal-line protection in industrial and process
automation systems.
1.1 EVM Features
TPS2661EVM board features include:
• Bidirectional current input for CH1, range: ±20 mA
• Onboard selectable 3 burden resistors for CH1: 50 Ω, 100 Ω, 250 Ω
• Voltage Input on CH2
• Onboard Power Amplifier OPA551 on CH2 for providing power for Analog output on CH2
• Gain options of 1, 2.5, and 4 for CH2 with provision to compensate for ON resistance of the TPS2661x
• Selectable overload response using jumpers on MODE pin
• IEC61000-4-5 Signal Line Surge (±1 kV, 42 Ω) Immunity with TVS3301 on Input (CH1) and Output (CH2)
• External LED to indicate status of the system
1.2 EVM Applications
Use this EVM on the following applications:
• Factory automation and control – PLCs- analog input/output module
• Motor drives control
• HART
• HVAC controllers
• Thermal controller
• UART IO protection
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2 TPS2661EVM: Evaluation Module for TPS2661x
Current-Loop Protector SLVUBX8B – OCTOBER 2020 – REVISED DECEMBER 2021
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