My Inquiry
My Account
Texas Instruments LM4041DIM3X-ADJ
- Part No.:
- LM4041DIM3X-ADJ
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4041DIM3X-ADJ.pdf
- Description:
- IC VREF SHUNT ADJ 1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,839
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4041DIM3X-ADJ from Texas Instruments is a precision adjustable shunt voltage reference in SOT-23 package, delivering 1.233 V reference voltage with ±0.5% initial tolerance at 25°C, 100 ppm/°C max temperature coefficient, and 20 μVRMS wideband noise (10 Hz–10 kHz). It operates from 60 μA to 12 mA and supports output voltages from 1.24 V to 10 V - used in high-accuracy ADC biasing, battery monitor feedback loops, and portable energy metering.
For engineers reviewing the LM4041DIM3X-ADJ datasheet, LM4041DIM3X-ADJ pinout, LM4041DIM3X-ADJ application, or LM4041DIM3X-ADJ equivalent, key selection criteria include adjustable output range (1.24–10 V), low operating current (60 μA min), no external capacitor requirement, automotive-grade qualification (AEC-Q100 Grade 1), and SOT-23 thermal performance (RθJA = 291.9 °C/W).
Technical Context
The LM4041DIM3X-ADJ implements a bandgap-based shunt reference architecture with curvature-corrected temperature drift compensation and Zener-zap wafer-level trimming for ±0.5% initial accuracy. Its feedback (FB) pin enables resistor-divider-based output adjustment while maintaining stable regulation across load and temperature.
It features low dynamic output impedance (0.3 Ω typical at 1 mA), tolerates capacitive loads without oscillation, and maintains <0.08% thermal hysteresis over −40°C to +125°C - enabling reliable operation in automotive engine control units and industrial sensor signal chains where long-term voltage stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage | 1.233 V at 100 μA, VOUT = 5 V - sets precise divider ratio for programmable output |
| Initial Tolerance | ±0.5% at 25°C (C grade) - ensures ≤±6.2 mV error in 5 V systems without calibration |
| Temp Coefficient | ±100 ppm/°C max (−40°C to +125°C) - contributes ≤±12.5 mV drift over full range at 5 V |
| Operating Current | 60 μA to 12 mA - supports ultra-low-power sensor nodes and high-current DAC references |
| Noise (10 Hz–10 kHz) | 20 μVRMS - avoids quantization noise floor degradation in 16-bit+ data acquisition |
| Dynamic Impedance | 0.3 Ω typical at 1 mA - minimizes load-induced voltage shift in varying-current applications |
| Feedback Current | 60–100 nA - enables high-impedance resistor dividers (e.g., 1 MΩ/1.2 MΩ) with <0.1% error |
Pinout & Package
SOT-23 (DBZ) package: 3-pin surface-mount, 1.30 mm × 2.92 mm body, JEDEC MO-178AC compliant. Thermal resistance RθJA = 291.9 °C/W (board-mounted).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Ground reference node | Connected to system GND; provides return path for shunt current |
| Cathode (Pin 2) | Output voltage node | Delivers regulated VREF; sinks current to maintain setpoint |
| FB (Pin 1) | Feedback input | Connects to resistor divider midpoint; controls output via internal reference comparator |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable output range | 1.24 V to 10 V via external resistors - replaces multiple fixed references in multi-rail systems |
| No output capacitor required | Stable with any capacitive load - eliminates BOM cost and layout area for bypass caps |
| AEC-Q100 Grade 1 qualified | Rated for −40°C to +125°C ambient - suitable for under-hood automotive modules |
| Low quiescent current | 60 μA minimum operating current - extends battery life in portable instrumentation |
| High ESD robustness | ±2 kV HBM on all pins (±1 kV on FB) - withstands handling and board assembly stress |
Applications
| Battery-Powered Equipment | Data-Acquisition Systems |
|---|---|
Use Scenario: Precision voltage reference for Li-ion cell voltage monitoring in handheld medical devices. IC Role / Device Role / Timing Role: Shunt reference providing stable 2.5 V bias to ADC input stage and comparator threshold. Use Value: Enables ±0.1% SOC estimation accuracy over temperature and battery aging due to 100 ppm/°C drift and 120 ppm long-term stability. | Use Scenario: Reference source for 16-bit SAR ADC in portable environmental sensor node. IC Role / Device Role / Timing Role: Adjustable shunt reference set to 4.096 V to match ADC full-scale range. Use Value: 20 μVRMS noise prevents LSB uncertainty; 60 μA min current allows operation from micro-power LDO. |
| Automotive Electronics | Energy Management/Metering |
Use Scenario: Feedback reference for isolated DC-DC converter in EV battery management system. IC Role / Device Role / Timing Role: Provides stable 5 V reference to optocoupler feedback circuit across isolation barrier. Use Value: AEC-Q100 Grade 1 qualification ensures reliability at 125°C ambient; thermal hysteresis <0.08% prevents calibration drift after thermal cycling. | Use Scenario: Reference for polyphase electricity meter IC measuring active/reactive power. IC Role / Device Role / Timing Role: Adjustable 2.49 V reference driving metrology ADC and anti-tampering comparators. Use Value: ±0.5% initial tolerance and ±100 ppm/°C TC meet IEC 62053-21 Class 0.5 accuracy requirements over industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431CDBZR | Fixed 2.495 V output; higher 1 mA min current; 22 Ω typical ZOUT | Lacks adjustability; unsuitable for sub-2.4 V or >5 V outputs | Select when fixed 2.5 V reference suffices and higher current is acceptable |
| MAX6008AEUR+T | Fixed 1.25 V output; 35 ppm/°C TC; SC70-3 package; 1.5 μA max quiescent current | Lower power but non-adjustable; limited to 1.25 V; not AEC-Q100 qualified | Select for ultra-low-power, fixed-voltage bias in non-automotive space-constrained designs |
Compared with TL431CDBZR and MAX6008AEUR+T, the LM4041DIM3X-ADJ uniquely combines automotive qualification, 1.24–10 V adjustability, 60 μA min current, and 20 μVRMS noise - making it optimal for high-accuracy, thermally demanding, and programmable reference needs where flexibility and reliability are co-prioritized.
Availability
LM4041DIM3X-ADJ is available at Aetrix Electronics and suitable for battery-powered equipment, data-acquisition systems, and automotive electronics requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LM4041DIM3X-ADJ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision reference design and automotive-grade component validation.
The LM4041-N series was engineered for high-accuracy, low-power shunt reference applications in space-constrained and thermally aggressive environments - particularly targeting automotive, industrial, and portable instrumentation markets.
FAQ
What is the output voltage range supported by the LM4041DIM3X-ADJ?
The LM4041DIM3X-ADJ supports an adjustable output voltage range from 1.24 V to 10 V, set externally using two resistors connected to the FB pin. This range is validated across its full operating current (60 μA to 12 mA) and temperature range (−40°C to +125°C), with reference voltage specified as 1.233 V at 100 μA and VOUT = 5 V. The LM4041DIM3X-ADJ achieves this via internal bandgap reference and feedback comparator architecture.
Does the LM4041DIM3X-ADJ require an external output capacitor for stability?
No, the LM4041DIM3X-ADJ does not require an external output capacitor for stability. Its advanced design eliminates the need for stabilization capacitance while remaining stable with any capacitive load - a key advantage over legacy shunt references. This simplifies layout, reduces BOM count, and improves reliability in high-vibration environments like automotive applications. The LM4041DIM3X-ADJ achieves this through optimized internal compensation and low dynamic impedance (0.3 Ω typical).
What is the minimum operating current for the LM4041DIM3X-ADJ, and how does it affect low-power designs?
The LM4041DIM3X-ADJ has a minimum operating current of 60 μA at 25°C, rising to 65 μA over the full industrial temperature range (−40°C to +85°C) and 68 μA in extended range (−40°C to +125°C). This ultra-low current enables use in battery-powered systems where standby current must be minimized - for example, enabling >10-year operation from a CR2032 coin cell in wireless sensor nodes. The LM4041DIM3X-ADJ maintains ±0.5% initial accuracy and 100 ppm/°C TC even at this low current.
Is the LM4041DIM3X-ADJ qualified for automotive applications?
Yes, the LM4041DIM3X-ADJ is AEC-Q100 qualified as Grade 1 (−40°C to +125°C ambient), meeting automotive reliability and stress-test requirements. It is explicitly listed in TI's LM4041-N-Q1 family documentation as qualified for automotive electronics, including engine control, battery monitoring, and ADAS subsystems. The LM4041DIM3X-ADJ also features ±2 kV HBM ESD rating and <0.08% thermal hysteresis - critical for under-hood durability.
How does the feedback (FB) pin function in the LM4041DIM3X-ADJ?
The FB pin of the LM4041DIM3X-ADJ is the high-impedance input to an internal error amplifier that compares the divided output voltage against the internal 1.233 V reference. With typical feedback current of 60–100 nA, it enables high-value resistor dividers (e.g., 1 MΩ/1.2 MΩ) without significant loading error. The LM4041DIM3X-ADJ uses this feedback to regulate cathode voltage precisely - allowing accurate, resistor-programmable output from 1.24 V to 10 V while maintaining stability and low noise.
LM4041DIM3X-ADJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Shunt
- Output Type:
- Adjustable
- Voltage - Output (Min/Fixed):
- 1.233V
- Voltage - Output (Max):
- 10 V
- Current - Output:
- 12 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 150ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 20µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 70 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM4041DIM3X-ADJ FAQ
1.How can I place an order for LM4041DIM3X-ADJ through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4041DIM3X-ADJ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM4041DIM3X-ADJ reliable?
The price and inventory of LM4041DIM3X-ADJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4041DIM3X-ADJ is usually 5 days.
3.What payment methods are accepted for LM4041DIM3X-ADJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4041DIM3X-ADJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4041DIM3X-ADJ?
LM4041DIM3X-ADJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4041DIM3X-ADJ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM4041DIM3X-ADJ?
For technical support, including LM4041DIM3X-ADJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4041DIM3X-ADJ requirements.
6.How does Aetrix verify that LM4041DIM3X-ADJ is sourced from the original manufacturer or authorized distributors?
All LM4041DIM3X-ADJ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM4041DIM3X-ADJ meets industry standards.
7.What is the process for return or replacement of LM4041DIM3X-ADJ?
All LM4041DIM3X-ADJ units undergo pre-shipment inspection (PSI). If there is an issue with LM4041DIM3X-ADJ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM4041DIM3X-ADJ part is unused and in its original packaging.
Return procedure for LM4041DIM3X-ADJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4041DIM3X-ADJ Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
