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Supervisor & reset ICs

TPS3896

ACTIVE

Single-channel, ultra-small, adjustable supervisor with active-low, push-pull output

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Data sheet

TPS3896

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 1, 2 Threshold voltage 1 (typ) (V) 0.5 Features Manual reset capable, Reset time delay, Undervoltage monitor only Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.006 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 0.04 Supply voltage (min) (V) 1.7 Supply voltage (max) (V) 6.5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 1, 2 Threshold voltage 1 (typ) (V) 0.5 Features Manual reset capable, Reset time delay, Undervoltage monitor only Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.006 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 0.04 Supply voltage (min) (V) 1.7 Supply voltage (max) (V) 6.5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
USON (DRY) 6 1.45 mm² 1.45 x 1
  • Very Small USON (1.45 mm × 1.00 mm) Package
  • Adjustable Threshold Down to 500 mV
  • Threshold Accuracy: 1% Over Temperature
  • Capacitor-Adjustable Delay Time
  • Low Quiescent Current: 6 µA (Typical)
  • External Enable Input
  • Open-Drain (Rated at 18 V) and Push-Pull Output
    Options
  • Temperature Range: –40°C to 125°C
  • Pin-for-Pin Compatible With MAX6895/6/7/8
  • Very Small USON (1.45 mm × 1.00 mm) Package
  • Adjustable Threshold Down to 500 mV
  • Threshold Accuracy: 1% Over Temperature
  • Capacitor-Adjustable Delay Time
  • Low Quiescent Current: 6 µA (Typical)
  • External Enable Input
  • Open-Drain (Rated at 18 V) and Push-Pull Output
    Options
  • Temperature Range: –40°C to 125°C
  • Pin-for-Pin Compatible With MAX6895/6/7/8

The TPS3895, TPS3896, TPS3897, and TPS3898 devices (TPS389x) are a family of very small supervisory circuits that monitor voltages greater than 500 mV with a 0.25% (typical) threshold accuracy and offer adjustable delay time using external capacitors. The TPS389x family also has a logic enable pin (ENABLE or ENABLE) to power on and off the output. With the TPS3895, for example, when the input voltage pin (SENSE) rises above the threshold, and the ENABLE pin is high, then the output pin (SENSE_OUT) goes high after the capacitor-adjustable delay time. When SENSE falls below the threshold or ENABLE is low, then SENSE_OUT goes low.

For TPS389xA versions, both SENSE and ENABLE have a capacitor-adjustable delay. The output asserts after this capacitor-adjustable delay when both SENSE and ENABLE inputs are good. The TPS389xP devices have a small, 0.2-µs propagation delay from when the enable pin asserts to when the output pin asserts, provided SENSE is above the threshold.

All devices operate from 1.7 V to 6.5 V and have a typical quiescent current of 6 µA with an open-drain output rated at 18 V. The TPS389x is available in an ultra-small USON package and is fully specified over the temperature range of TJ = –40°C to 125°C.

The TPS3895, TPS3896, TPS3897, and TPS3898 devices (TPS389x) are a family of very small supervisory circuits that monitor voltages greater than 500 mV with a 0.25% (typical) threshold accuracy and offer adjustable delay time using external capacitors. The TPS389x family also has a logic enable pin (ENABLE or ENABLE) to power on and off the output. With the TPS3895, for example, when the input voltage pin (SENSE) rises above the threshold, and the ENABLE pin is high, then the output pin (SENSE_OUT) goes high after the capacitor-adjustable delay time. When SENSE falls below the threshold or ENABLE is low, then SENSE_OUT goes low.

For TPS389xA versions, both SENSE and ENABLE have a capacitor-adjustable delay. The output asserts after this capacitor-adjustable delay when both SENSE and ENABLE inputs are good. The TPS389xP devices have a small, 0.2-µs propagation delay from when the enable pin asserts to when the output pin asserts, provided SENSE is above the threshold.

All devices operate from 1.7 V to 6.5 V and have a typical quiescent current of 6 µA with an open-drain output rated at 18 V. The TPS389x is available in an ultra-small USON package and is fully specified over the temperature range of TJ = –40°C to 125°C.
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TPS3899 ACTIVE Nanopower supervisor with programmable sense and reset delay This product offers a separate SENSE pin with high accuracy, adjustable or fixed threshold options and programmable SENSE delay feature.

Technical documentation

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Type Title Date
* Data sheet TPS389x Single-Channel, Adjustable Voltage Monitor in Ultra-Small Package datasheet (Rev. B) PDF | HTML 02 Sep 2014
Application note Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) 17 Mar 2020
Application note Programmable Push-Button, Pulse Detector, and Pulse Generator Solutions 10 Mar 2020
Selection guide Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) 28 Feb 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Application brief Latching a Voltage Supervisor (Reset IC) (Rev. A) 05 Apr 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS3897A-6P-EVM047 — Evaluation module for TPS389xx single-channel adjustable supervisory circuit

The TPS3897A-6P-EVM047 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS3897A and TPS3896P single-channel adjustable supervisory circuit. The EVM has two complete adjustable supervisory circuits, one featuring a push-pull output and one featuring an (...)
User guide: PDF
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Simulation model

TPS3896A Unencrypted PSpice Transient Model Package (Rev. A)

SBVM071A.ZIP (34 KB) - PSpice Model
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Simulation model

TPS3896P Unencrypted PSpice Transient Model Package (Rev. A)

SBVM072A.ZIP (34 KB) - PSpice Model
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Calculation tool

SBVC043 — TPS389x Reset Time Delay Calculator

Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TPS3895 — Single-channel, ultra-small, adjustable supervisor with active-high, push-pull output TPS3896 — Single-channel, ultra-small, adjustable supervisor with active-low, push-pull output TPS3897 — Single-channel, ultra-small, adjustable supervisor with active-high, open-drain output TPS3898 — Single-channel, ultra-small, adjustable supervisor with active-low, open-drain output
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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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USON (DRY) 6 Ultra Librarian
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