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Product details

Parameters

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 3 Features Ease-of-use, Wide input voltage Reset threshold accuracy (%) 5 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 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-SC70 (DCK) 5 4 mm² 2 x 2.1 open-in-new Find other Supervisor & reset ICs

Features

  • Ultra-Low Power
  • 3-V Detection
  • Input Voltage From 0.8 V to 7 V
  • Open-Drain Output
  • Ultra-Small 5-Pin SC70 Package
  • Extended Temperature Range (–40°C to 85°C)
  • Ultra-Low Quiescent Current (1 µA Typical)
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Description

The LMS33460 device is an undervoltage detector with a 3‑V threshold and extremely low power consumption. The LMS33460 is specifically designed to accurately monitor power supplies. It is especially suited to battery-powered systems where low quiescent current and small size are required. This IC generates an active output whenever the input voltage drops below 3 V.

This part uses a precision on-chip voltage reference and a comparator to measure the input voltage. Built-in hysteresis helps to prevent erratic operation in the presence of noise. The UVD is available in the ultra-miniature 5-pin SC70 package.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet LMS33460 3-V Undervoltage Detector datasheet (Rev. E) Dec. 09, 2016
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018

Design & development

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

Design tools & simulation

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PSpice® for TI design and simulation tool
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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  • Supports simultaneous analysis of multiple products
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Reference designs

REFERENCE DESIGNS Download
400-V to 690-V AC Input, 50-W Flyback Isolated Power Supply Reference Design for Motor Drives
TIDA-00173 This reference design provides isolated +24V (45W), ±16 V (4.5W), and +6V (0.5W) outputs to power the control electronics in variable speed drives.  The power supply can be either powered directly from 3-phase AC mains (380Vac to 690Vac) or can be powered from the DC-link voltage (400Vdc (...)
document-generic Schematic
REFERENCE DESIGNS Download
30W Ultra Wide Range Power Supply for Protection Relays Reference Design
TIDA-00127 This power supply solution for Protection Relays handles an ultra-wide range of both AC (88-276V AC) and DC (24-250V DC) inputs making it a suitable platform to power a variety of Protection Relays. The power supply is designed to output industry standard voltages (such as +/- 12V and isolated (...)
document-generic Schematic
REFERENCE DESIGNS Download
100/200Vac Input, 30W Isolated Power Supply Reference Design for Servo Drives
TIDA-00315 This reference design provides isolated 24Vdc, 16Vdc (x3) and 6V outputs to power the control electronics, IGBT module and fan for 100Vac/200Vac input servo drives. The power supply can be either powered directly from a single or 3- phase AC mains or can be powered from the DC link voltage. This (...)
document-generic Schematic
REFERENCE DESIGNS Download
Small Form Factor 12W Ultra Wide Range Power Supply for Protection Relays - Reference Design
TIDA-00227 This small form factor, 12W power supply solution for protection relays handles an ultra-wide range of both AC and DC inputs making it a suitable platform to power a variety of lower power protection relays that need to be placed in a small housing.  The power supply is designed to output (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 5 View options

Ordering & quality

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