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Product details

Parameters

VO (V) 2.048, 2.5, 4.096, 5, 8.192, 10 Reference voltage Fixed Initial accuracy (Max) (%) 0.1, 0.2, 0.5 Rating Automotive VO adj (Min) (V) 2.048 VO adj (Max) (V) 10 Iz for regulation (Min) (uA) 60, 60, 68, 74, 91, 100 TI functional safety category Functional Safety-Capable Temp coeff (Max) (ppm/ degree C) 50 Operating temperature range (C) -40 to 125, -40 to 85 Iout/Iz (Max) (mA) 15 open-in-new Find other Shunt voltage references

Package | Pins | Size

SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 open-in-new Find other Shunt voltage references

Features

  • Small Package: SOT-23
  • No Output Capacitor Required
  • Tolerates Capacitive Loads
  • Fixed Reverse Breakdown Voltages of 2.048 V,
    2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V
  • Key Specifications (LM4050-N)
    • Output Voltage Tolerance (A Grade, 25°C)
      ±0.1% (Maximum)
    • Low Output Noise (10 Hz to 10 kHz) 41 µVrms
      (Typical)
    • Wide Operating Current Range 60 µA to 15
      mA
    • Industrial Temperature Range –40°C to 85°C
    • Extended Temperature Range –40°C to 125°C
    • Low Temperature Coefficient 50 ppm/°C (max)
    • LM4050-N-Q1 is AEC-Q100 Grade 1 Qualified
      and are Manufactured on an Automotive
      Grade Flow
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Description

Ideal for space-critical applications, the LM4050-N precision voltage reference is available in the sub-miniature (3 mm × 1.3 mm) SOT-23 surface-mount package. The LM4050-N design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4050-N easy to use. Further reducing design effort is the availability of several fixed reverse breakdown voltages: 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V. The minimum operating current increases from 60 µA for the LM4050-N-2.0 to 100 µA for the LM4050-N-10.0. All versions have a maximum operating current of 15 mA.

The LM4050-N utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C. Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.

All grades and voltage options of the LM4050-N are available in both an industrial temperature range (–40°C and 85°C) and an extended temperature range (–40°C and 125°C).

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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 4
Type Title Date
* Datasheet LM4050-N/-Q1 Precision Micropower Shunt Voltage Reference datasheet (Rev. G) Sep. 30, 2015
Application notes LM4050-N-Q1 Functional Safety FIT Rate and Failure Mode Distribution Dec. 18, 2019
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Technical articles Speeding through the ADAS market 0-60 Dec. 07, 2015

Design & development

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

Design tools & simulation

SIMULATION MODELS Download
SNOM326.ZIP (51 KB) - PSpice Model
SIMULATION TOOLS Download
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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOLS Download
Shunt voltage reference external resistor quick-start calculator
SHUNT_VOLTAGE_REFERENCE_RESISTOR_CALCULATOR This external resistor quick-start calculator tool lets you easily calculate valid external resistor values relative to voltage reference, supply and load-current bounds. With these inputs, you can instantly view the resulting calculations and use the color-coded indications to understand (...)
Features
  • Case-specific tool to calculate external resistor value associated with shunt voltage reference
  • Input fields for: voltage reference, supply voltage, load current and Iq bound values
  • Real-time effects of input values on schematic
  • Quick indicators notifying user of valid and invalid outputs
  • Error messages (...)

CAD/CAE symbols

Package Pins Download
SOT-23 (DBZ) 3 View options

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