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TPS37-ADJ-CALC

TPS37, TPS38, and TPS3760 adjustable-resistor and time-delay calculator

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TPS37-ADJ-CALC

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Overview

This calculator tool guides the user through the design process for the adjustable variants of the TPS37/38 dual-channel supervisors. The default voltage threshold and hysteresis level for these devices are set to 800 mV and 2% respectively, but can be adjusted through the addition of resistors. This tool recommends resistance values based on user input of desired specifications. Additional calculations for recommended capacitance values based on desired reset time delay and sense time delay are also provided.
Features
  • Case-specific tool to calculate resistance values for desired threshold voltage
  • Options for all open-drain active low variants, including TPS37A, TPS38A, TPS38J and TPS3760
  • Input fields for each channel's monitored rail voltage, desired hysteresis level, pullup resistance, VDD and more
  • Variable definitions and recommended values provided for clarity and ease-of-use
  • Error messages whenever user specifications cannot be met
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Design tool

TPS37-ADJ-CALC — TPS37, TPS38, and TPS3760 adjustable-resistor and time-delay calculator

Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TPS37 — 65-V window supervisor with ultra-low quiescent current and time-delay function TPS37-Q1 — Automotive 65-V window supervisor with ultra-low quiescent current and time-delay function TPS38-Q1 — Automotive 65-V dual-channel supervisor with ultra-low quiescent current and time-delay function TPS3760 — 65-V overvoltage or undervoltage supervisor with sense, ultra-low quiescent current and delay TPS3760-Q1 — Automotive 65-V overvoltage or undervoltage supervisor with sense, ultra-low IQ and delay
Hardware development
Evaluation board
TPS37AQ1EVM — TPS37 evaluation module for 65-V window supervisor with ultra-low IQ and time-delay function TPS3760EVM — TPS3760 evaluation module for 65-V overvoltage or undervoltage supervisor with sense, IQ and delay
Launch

TPS37-ADJ-CALC — TPS37, TPS38, and TPS3760 adjustable-resistor and time-delay calculator

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Latest version
Version: 1.0
Release date: 31 Aug 2022
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Release notes

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Products
Supervisor & reset ICs
TPS37 — 65-V window supervisor with ultra-low quiescent current and time-delay function TPS37-Q1 — Automotive 65-V window supervisor with ultra-low quiescent current and time-delay function TPS38-Q1 — Automotive 65-V dual-channel supervisor with ultra-low quiescent current and time-delay function TPS3760 — 65-V overvoltage or undervoltage supervisor with sense, ultra-low quiescent current and delay TPS3760-Q1 — Automotive 65-V overvoltage or undervoltage supervisor with sense, ultra-low IQ and delay
Hardware development
Evaluation board
TPS37AQ1EVM — TPS37 evaluation module for 65-V window supervisor with ultra-low IQ and time-delay function TPS3760EVM — TPS3760 evaluation module for 65-V overvoltage or undervoltage supervisor with sense, IQ and delay

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