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Product details

Parameters

VO (V) 1.225 Reference voltage Adjustable Initial accuracy (Max) (%) 0.2 Rating Catalog VO adj (Min) (V) 1.225 VO adj (Max) (V) 10 Iz for regulation (Min) (uA) 45 Temp coeff (Max) (ppm/ degree C) 100 Operating temperature range (C) -40 to 85 Iout/Iz (Max) (mA) 25 open-in-new Find other Shunt voltage references

Package | Pins | Size

SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 SOT-SC70 (DCK) 5 4 mm² 2 x 2.1 open-in-new Find other Shunt voltage references

Features

  • 1.225-V Fixed and Adjustable Outputs (1.225 V to 10 V)
  • Tight Output Tolerances and Low Temperature Coefficient
    • Max 0.1%, 100 ppm/°C — A Grade
    • Max 0.2%, 100 ppm/°C — B Grade
    • Max 0.5%, 100 ppm/°C — C Grade
    • Max 1.0%, 150 ppm/°C — D Grade
  • Low Output Noise . . . 20 µVRMS (Typ)
  • Wide Operating Current Range . . . 45 µA (Typ) to 12 mA
  • Stable With All Capacitive Loads; No Output Capacitor Required
  • Available in
    • Industrial Temperature: -40°C to 85°C
    • Extended Temperature: -40°C to 125°C
  • Applications
    • Data-Acquisition Systems
    • Power Supplies and Power-Supply Monitors
    • Instrumentation and Test Equipment
    • Process Control
    • Precision Audio
    • Automotive Electronics
    • Energy Management/Metering
    • Battery-Powered Equipment

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Description

The LM4041 series of shunt voltage references are versatile, easy-to-use references suitable for a wide array of applications. They require no external capacitors for operation and are stable with all capacitive loads. Additionally, the reference offers low dynamic impedance, low noise, and a low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4041 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to-performance ratio for their applications. The LM4041 is available in a fixed (1.225 V nominal) or an adjustable version (which requires an external resistor divider to set the output to a value between 1.225 V and 10 V).

Packaged in space-saving SC-70 and SOT-23-3 and requiring a minimum current of 45 µA (typ), the LM4041 also is ideal for portable applications. The TO-92 package also is available for through-hole packaging needs. The LM4041xI is characterized for operation over an ambient temperature range of -40°C to 85°C. The LM4041xQ is characterized for operation over an ambient temperature range of -40°C to 125°C.

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Technical documentation

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Type Title Date
* Datasheet LM4041 datasheet (Rev. E) Feb. 17, 2006
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Technical articles Tripping Point: Simplifying circuit breaker design using delta-sigma ADCs Aug. 10, 2016
More literature SLL Precision Reference Product Clip Feb. 23, 2006

Design & development

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

Reference designs

REFERENCE DESIGNS Download
Signal Processing Subsystem and Current Input Based Self Power for Breaker Applications (ACB/MCCB)
TIDA-00498 THe TIDA-00498 reference design features signal processing front-end and self-power block for electronic trip unit (ETU) used in circuit breakers.  A FRAM based micro-controller is used for processing current inputs from signal conditioning amplifiers for 3-phase, neutral and ground current (...)
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REFERENCE DESIGNS Download
High Resolution, Fast Startup Analog Front End for Air Circuit Breaker Reference Design
TIDA-00661 The TIDA-00661 reference design features signal processing front-end subsystem for electronic trip units (ETU) used in air circuit breakers (ACB) or molded case circuit breakers (MCCB). This subsystem consists of Delta-Sigma ADC with 24-Bit resolution and fast startup (< 3ms), ±2.5V (...)
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REFERENCE DESIGNS Download
EMC Compliant, Group Isolated, 2-Channel Binary Input Module for Wide AC/DC Input Reference Design
TIDA-00809 — The TIDA-00809 TI design showcases a cost optimized architecture that improves resolution of a binary input module. A microcontroller unit (MCU) is shared between two input channels (group isolation) to minimize the cost per channel. Wide input range is covered using an amplifier with gain and a MCU (...)
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REFERENCE DESIGNS Download
100W USB Type C PD Power Monitoring Dongle Reference Design
PMP11474 — The PMP11474 reference design measures the voltage and current present on a USB type C cable.  Current is monitored across a 5 mΩ sense resistor by an INA213 current amplifier.  Voltage is monitored by an LM321 amplifier.  These measurements are processed and displayed on a small (...)
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REFERENCE DESIGNS Download
Measurement Module for Branch Circuit Power Monitor Reference Design
TIDA-00222 This reference design targets measurement accuracy across the rated current range while at the same time being a cost efficient solution. This is achieved by using a highly integrated SoC device which has up to 7 channels of the 24-bit Delta-Sigma ADCs available for current measurement. For voltage (...)
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REFERENCE DESIGNS Download
Zero drift PGA based Analog Front End Design for Circuit Breakers (ACB/MCCB-ETU)
TIDA-00130 This reference design is intended for use in molded case circuit breakers (MCCB) electronic trip units.  The programmable gain amplifier based design acts as the current monitoring for over-current earth fault relays. Utilizing a zero drift programmable amplifier, this design provides a (...)
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REFERENCE DESIGNS Download
Analog Front End for Motor Electronic Overload Relays with Enhanced Current Range
TIDA-00191 This reference design is the analog front end (AFE) for an electronic overload relay, used for monitoring and protecting motors from overcurrent or undercurrent events. It is an ideal tool for developers creating overload relays for sensitive AC motors in industrial applications. This programmable (...)
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CAD/CAE symbols

Package Pins Download
SC70 (DCK) 5 View options
SOT-23 (DBZ) 3 View options

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