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Texas Instruments LM4040BIM3-10.0/NOPB
- Part No.:
- LM4040BIM3-10.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4040BIM3-10.0/NOPB.pdf
- Description:
- IC VREF SHUNT 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:15,581
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Product details
Overview
LM4040BIM3-10.0/NOPB from Texas Instruments is a precision micropower shunt voltage reference in SOT-23 package, delivering a stable 10.0 V reverse breakdown voltage with ±0.2% initial tolerance (B grade), 100 μA minimum operating current, and 100 ppm/°C max temperature coefficient. It operates across −40°C to +85°C and serves as a compact, capacitor-free reference for high-accuracy analog signal chains in industrial and automotive systems.
For engineers reviewing the LM4040BIM3-10.0/NOPB datasheet, LM4040BIM3-10.0/NOPB pinout, LM4040BIM3-10.0/NOPB application, or LM4040BIM3-10.0/NOPB equivalent, key selection criteria include its 10 V fixed output, SOT-23 footprint compatibility, low 35 μVrms noise (10 Hz–10 kHz), wide 100 μA–15 mA operating current range, and AEC-Q100 Grade 3 qualification.
Technical Context
The LM4040BIM3-10.0/NOPB uses Zener-zap trimming during wafer sort to achieve ±0.2% initial accuracy at 25°C and incorporates bandgap-derived curvature correction for stable voltage over temperature. Its shunt topology requires an external series resistor but eliminates need for output capacitance while tolerating arbitrary capacitive loads.
Designed for space-constrained applications, it leverages a 3-pin SOT-23 (DBZ) package with anode (pin 2), cathode (pin 1), and floating/optional connection pin (pin 3). Thermal hysteresis is limited to 0.08%, and long-term stability is 120 ppm after 1000 hours at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.0 V nominal reverse breakdown voltage; fixed value enabling precise ADC/DAC biasing without trimming. |
| Initial Tolerance | ±0.2% at 25°C (B grade); corresponds to ±20 mV absolute error, suitable for 12-bit+ system accuracy. |
| Temp Coefficient | ≤100 ppm/°C max; ensures ≤±8.5 mV drift over −40°C to +85°C ambient range. |
| Operating Current | 100 μA to 15 mA; supports ultra-low-power sensor interfaces and high-current reference buffering. |
| Output Noise | 35 μVrms (10 Hz–10 kHz); low enough for 16-bit SAR ADC reference without additional filtering. |
| Dynamic Impedance | 0.3–0.8 Ω at 1 mA; minimizes load-induced voltage variation in precision current-sense circuits. |
Pinout & Package
SOT-23 (DBZ) package: 2.92 mm × 1.30 mm body, 3-pin surface-mount with gull-wing leads. RoHS-compliant, lead-free, and qualified per AEC-Q100 Grade 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Pin 1) | Shunt current input / output node | Connects to regulated voltage rail; sinks current to maintain 10.0 V across external load/resistor. |
| Anode (Pin 2) | Reference ground reference | Typically tied to system ground; defines the 0 V reference point for the 10.0 V output. |
| NC (Pin 3) | No-connect terminal | Must be left floating or connected to anode; improves EMI immunity in noisy environments when tied. |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Enables direct integration into space-limited PCB layouts without stability-compromising bypass caps. |
| Tolerates capacitive loads | Stable operation with >1 μF output capacitance-critical for driving ADC sample-and-hold inputs. |
| Zener-zap voltage trim | Ensures ±0.2% initial accuracy at 25°C without post-package calibration or laser trimming. |
| AEC-Q100 Grade 3 qualified | Validated for automotive applications requiring −40°C to +85°C operation and robust reliability. |
| Low thermal hysteresis | 0.08% voltage shift after thermal cycling between −40°C and +125°C-supports repeatable metrology. |
Applications
| Field Transmitters | Energy Infrastructure |
|---|---|
Use Scenario: 4–20 mA loop-powered sensor transmitter with HART modulation. IC Role / Device Role / Timing Role: Shunt reference providing stable 10.0 V excitation for RTD/bridge sensors and ADC reference. Use Value: Enables <12-bit linearity over full temperature range without recalibration due to 100 ppm/°C tempco and 35 μVrms noise. |
Use Scenario: Smart electricity meter with polyphase energy measurement IC. IC Role / Device Role / Timing Role: Precision voltage reference for metrology-grade sigma-delta ADCs sampling AC voltage/current. Use Value: Delivers ±20 mV initial accuracy and <±8.5 mV total drift over −40°C to +85°C, meeting IEC 62053 Class 0.2 accuracy. |
| Data Acquisition | Automotive |
Use Scenario: Isolated industrial DAQ module with 16-bit SAR ADC and microcontroller. IC Role / Device Role / Timing Role: Low-noise 10.0 V reference for ADC VREF input and sensor excitation. Use Value: 35 μVrms noise and 0.8 Ω dynamic impedance prevent code flicker and maintain ENOB >15.2 bits. |
Use Scenario: Battery management system (BMS) cell voltage monitoring in EV traction packs. IC Role / Device Role / Timing Role: Stable reference for high-side differential amplifiers measuring 0–5 V cell voltages. Use Value: AEC-Q100 Grade 3 qualification and 120 ppm long-term stability ensure reliable lifetime performance under thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL4050B10IDBZR | 10 V, ±0.2% initial tolerance, SOT-23, but higher 75 ppm/°C max tempco and 45 μVrms noise. | Lacks AEC-Q100 qualification; not recommended for automotive BMS or infotainment power rails. | Prefer LM4040BIM3-10.0/NOPB where low noise (<40 μVrms) and automotive qualification are mandatory. |
| MAX6008BEUR+T | 10 V, ±0.2% tolerance, SOT-23, but 60 μA min current and 50 ppm/°C tempco-tighter drift but higher quiescent sensitivity. | Not rated for extended temperature; max operating range is −40°C to +85°C only, no Grade 1 support. | Choose LM4040BIM3-10.0/NOPB when design requires proven stability across full industrial range with minimal layout overhead. |
Compared with TL4050B10IDBZR and MAX6008BEUR+T, the LM4040BIM3-10.0/NOPB uniquely combines AEC-Q100 Grade 3 qualification, 35 μVrms noise, and 100 μA–15 mA operational flexibility-making it optimal for high-reliability, low-noise, and thermally demanding shunt reference roles.
Availability
LM4040BIM3-10.0/NOPB is available at Aetrix Electronics and suitable for field transmitters, energy infrastructure meters, and automotive battery monitoring systems requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for LM4040BIM3-10.0/NOPB 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, embedded processing, and connectivity technologies, with decades of expertise in precision analog ICs and automotive-qualified components.
The LM4040-N series was designed specifically for space-constrained, high-accuracy voltage reference needs in industrial sensing, automotive subsystems, and portable instrumentation-emphasizing micropower operation, zero-output-capacitor simplicity, and robust thermal performance.
FAQ
What is the maximum operating current for LM4040BIM3-10.0/NOPB?
The LM4040BIM3-10.0/NOPB supports a maximum operating current of 15 mA. This limit ensures safe power dissipation within the SOT-23 package's 306 mW rating at 25°C ambient. Exceeding 15 mA risks thermal overload and permanent damage, especially above 85°C ambient where derating applies per RθJA = 291.9°C/W.
Does LM4040BIM3-10.0/NOPB require an external capacitor for stability?
No, the LM4040BIM3-10.0/NOPB does not require an external output capacitor for stability. Its internal design maintains regulation across all capacitive loads, including >1 μF ceramic or tantalum capacitors. This eliminates board area and cost associated with stabilizing capacitors while simplifying layout for precision analog circuits.
Is LM4040BIM3-10.0/NOPB qualified for automotive applications?
Yes, LM4040BIM3-10.0/NOPB is AEC-Q100 Grade 3 qualified (−40°C to +85°C), making it suitable for non-critical automotive applications such as body control modules, HVAC sensors, and infotainment power rails. It is not Grade 1 (−40°C to +125°C), so engine bay use requires verification against thermal derating limits.
What is the minimum operating current for LM4040BIM3-10.0/NOPB?
The LM4040BIM3-10.0/NOPB requires a minimum operating current of 100 μA at 25°C to maintain regulation at its nominal 10.0 V output. Below this threshold, the device exits regulation and output voltage collapses. At temperature extremes, minimum current increases slightly-up to 105 μA at −40°C per characterization data.
How does the pin configuration of LM4040BIM3-10.0/NOPB differ from LM4040AIM3-10.0/NOPB?
The LM4040BIM3-10.0/NOPB and LM4040AIM3-10.0/NOPB share identical SOT-23 pinout: cathode on pin 1, anode on pin 2, and NC on pin 3. The only difference is initial voltage tolerance-±0.2% for the B-grade LM4040BIM3-10.0/NOPB versus ±0.1% for the A-grade variant-both using the same DBZ package and pin functions.
LM4040BIM3-10.0/NOPB 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:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 180µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 103 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM4040BIM3-10.0/NOPB FAQ
1.How can I place an order for LM4040BIM3-10.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040BIM3-10.0/NOPB 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 LM4040BIM3-10.0/NOPB reliable?
The price and inventory of LM4040BIM3-10.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4040BIM3-10.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4040BIM3-10.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040BIM3-10.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040BIM3-10.0/NOPB?
LM4040BIM3-10.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040BIM3-10.0/NOPB 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 LM4040BIM3-10.0/NOPB?
For technical support, including LM4040BIM3-10.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040BIM3-10.0/NOPB requirements.
6.How does Aetrix verify that LM4040BIM3-10.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4040BIM3-10.0/NOPB 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 LM4040BIM3-10.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4040BIM3-10.0/NOPB?
All LM4040BIM3-10.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4040BIM3-10.0/NOPB, 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 LM4040BIM3-10.0/NOPB part is unused and in its original packaging.
Return procedure for LM4040BIM3-10.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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