Product details

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 8.5, 10.8 Features Ease-of-use, Manual reset capable, Wide input voltage Reset threshold accuracy (%) 2.5 Output driver type/reset output Active-low, Push-pull Time delay (ms) 5 Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 105
Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 8.5, 10.8 Features Ease-of-use, Manual reset capable, Wide input voltage Reset threshold accuracy (%) 2.5 Output driver type/reset output Active-low, Push-pull Time delay (ms) 5 Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 105
SOT-23 (DBV) 5 5 mm² 2.9 x 1.6
  • Ultralow Supply Current: 380 nA
  • Wide Supply Voltage Range: 4.5 V to 18 V
  • High Threshold Accuracy: ±2.5%
  • Internal Hysteresis
  • Push-Pull Output
  • 20-ms (max) Delay Timing
  • Factory-Trimmed, Fixed-Voltage Thresholds
  • Specified Operating Temperature Range:
    –40°C to +85°C
  • Operational from –40°C to +105°C
  • Package: 5-Pin SOT
  • Ultralow Supply Current: 380 nA
  • Wide Supply Voltage Range: 4.5 V to 18 V
  • High Threshold Accuracy: ±2.5%
  • Internal Hysteresis
  • Push-Pull Output
  • 20-ms (max) Delay Timing
  • Factory-Trimmed, Fixed-Voltage Thresholds
  • Specified Operating Temperature Range:
    –40°C to +85°C
  • Operational from –40°C to +105°C
  • Package: 5-Pin SOT

The TPS3847 family consists of wide operating voltage, ultralow-current devices that monitor the voltage at the supply pin. The device asserts an active-low reset signal whenever the VCC supply voltage drops below the factory-trimmed reset threshold voltage. The reset output remains asserted for 20 ms (max) after the VCC voltage rises above the threshold voltage.

The ultralow current consumption of 380 nA combined with 18-V capability makes the TPS3847 ideal for use in low-power and portable applications.

The TPS3847 features precision, factory-trimmed threshold voltages and extremely low-power operation. The TPS3847 is available in an industry-standard, 5-pin, SOT package.

The TPS3847 family consists of wide operating voltage, ultralow-current devices that monitor the voltage at the supply pin. The device asserts an active-low reset signal whenever the VCC supply voltage drops below the factory-trimmed reset threshold voltage. The reset output remains asserted for 20 ms (max) after the VCC voltage rises above the threshold voltage.

The ultralow current consumption of 380 nA combined with 18-V capability makes the TPS3847 ideal for use in low-power and portable applications.

The TPS3847 features precision, factory-trimmed threshold voltages and extremely low-power operation. The TPS3847 is available in an industry-standard, 5-pin, SOT package.

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Technical documentation

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Type Title Date
* Data sheet TPS3847 18-V, 380-nA Voltage Monitor datasheet (Rev. A) 04 Mar 2015
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Technical article Monitoring 12-V automotive battery systems: Load-dump, cold-crank and false-reset management 24 Mar 2021
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
Technical article How to implement voltage monitoring 22 Jul 2015
Technical article Increase battery life with low voltage monitoring 28 Oct 2014
User guide TPS3847085EVM-577 User's Guide 04 Aug 2014

Design & development

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Evaluation board

TPS3847085EVM-577 — TPS3847 380nA voltage monitor for 12V rails evaluation module

The TPS3847085EVM-577 is a fully assembled and tested Evaluation Module (EVM) for evaluating the TPS3847085 supervisor. The EVM circuit is configured to be a reference design for engineering applications. Connectors and test points are provided for convenience.

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Simulation model

TPS3847108 Unencrypted PSpice Transient Model

SBVM576.ZIP (2 KB) - PSpice Model
Simulation model

TPS3847085 Unencrypted PSpice Transient Model

SBVM577.ZIP (2 KB) - PSpice Model
Simulation model

TPS3847108 PSpice Transient Model

SLUM450.ZIP (38 KB) - PSpice Model
Simulation model

TPS3847085 PSpice Transient Model

SLVMAC9.ZIP (45 KB) - PSpice Model
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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SOT-23 (DBV) 5 View options

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