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Product details

Parameters

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 1.71, 2.25, 2.64, 2.93 Features Active-low enable, Manual reset Reset threshold accuracy (%) 1.75 Output driver type/reset output Active-low, Open-drain Time delay (ms) Programmable Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 85 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Supervisor & reset ICs

Features

  • Supply current: 220 nA (typical)
  • Precision supply voltage supervision range:
    1.8 V, 2.5 V, 3.0 V, and 3.3 V
  • Power-on reset generator with selectable delay time: 10 ms or 200 ms
  • Push and pull RESET output (TPS3836),
    Push and pull RESET output (TPS3837), or open-drain RESET output (TPS3838)
  • Manual reset
  • 5-pin SOT23 and 2-mm × 2-mm, 6-pin SON packages
  • Temperature range: –40°C to 85°C

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Description

The TPS3836, TPS3837, and TPS3838 device families of supervisory circuits provide circuit initialization and timing supervision, primarily for digital signal processors (DSP) and processor-based systems.

During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps the RESET output active as long as VDD remains below the threshold voltage of VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time starts after VDD rises above the threshold voltage VIT.

When CT is connected to GND, a fixed delay time of typically 10 ms is asserted. When connected to VDD, the delay time is typically 200 ms. When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again. All the devices of this family have a fixed-sense threshold voltage (VIT) set by an internal voltage divider.

The TPS3836 has an active-low, push-pull RESET output. The TPS3837 has an active-high, push-pull RESET, and the TPS3838 integrates an active-low, open-drain RESET output. The product spectrum is designed for supply voltages of 1.8 V, 2.5 V, 3.0 V, and 3.3 V. The circuits are available in either a SOT23-5 or a 2-mm × 2-mm SON-6 package. The TPS3836, TPS3837, and TPS3838 families are characterized for operation over a temperature range of –40°C to 85°C.

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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
TPS3840 ACTIVE Nanopower high-input voltage supervisor with manual reset and programmable-reset time delay TPS3840 offers more threshold voltage options (1.6 V to 4.9 V) with low 0.3-uA quiescent current and more accurate reset threshold.

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 16
Type Title Date
* Datasheet TPS383x Nano Power Voltage Supervisor With Selectable Reset Delay datasheet (Rev. F) Sep. 11, 2019
Selection guides Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) Feb. 28, 2020
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
User guides DLPC350 Programmer’s Guide (Rev. G) Jul. 05, 2018
User guides TIDA-00570 Test Results (Rev. A) Aug. 01, 2017
User guides TIDA-00254 User's Guide (Rev. B) Jul. 26, 2017
User guides TIDA-00254 Test Results (Rev. A) Apr. 21, 2016
More literature TI DLP® Technology for 3D Machine Vision (Rev. C) Apr. 08, 2016
User guides TIDA-00254 User's Guide Jul. 25, 2014
More literature DLP Point Cloud Generation and 3D Machine Vision Reference Design Jul. 22, 2014
Technical articles Don’t underestimate the power of an LDO Oct. 19, 2013
Technical articles How to optimize your DSP power budget Oct. 03, 2013
Technical articles "X" Marks the spot - 7 Treasures in a pirate engineer's treasure chest Sep. 19, 2013
Technical articles Power Tips: How to be discrete Sep. 17, 2013
User guides DLP4500-C350REF Test Results Sep. 12, 2013
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011

Design & development

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Software development

SUPPORT SOFTWARE Download
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Design tools & simulation

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PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Reference designs

REFERENCE DESIGNS Download
High Resolution, Portable Light Steering Reference Design using DLP Technology
DLP4500-C350REF This reference design, featuring the DLP® 0.45” WXGA chipset and implemented in the DLP® LightCrafter™ 4500 evaluation module (EVM), enables flexible control of high resolution, accurate patterns for industrial, medical, and scientific applications. With a free USB-based GUI and (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Accurate Point Cloud Generation for 3D Machine Vision Applications using DLP® Technology
TIDA-00254 The 3D Machine Vision reference design employs Texas Instruments DLP® Advanced Light Control Software Development Kit (SDK) for LightCrafter™ series controllers, which allows developers to easily construct 3D point clouds by integrating TI’s digital micromirror device (DMD (...)
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REFERENCE DESIGNS Download
High Speed DLP Sub-system for Industrial 3D Printing and Digital Lithography Reference Design
TIDA-00570 The High Speed DLP® Sub-system Reference Design provides system-level DLP development board designs for industrial Digital Lithography and 3D Printing applications that require high resolution, superior speed and production reliability. The system design offers maximum throughput by integrating (...)
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CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options
WSON (DRV) 6 View options

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