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Texas Instruments LM4050BIM3-10/NOPB
- Part No.:
- LM4050BIM3-10/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4050BIM3-10/NOPB.pdf
- Description:
- IC VREF SHUNT 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,792
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Product details
Overview
LM4050BIM3-10/NOPB from Texas Instruments is a precision micropower shunt voltage reference with 10 V nominal reverse breakdown voltage, ±0.2% initial tolerance (B-grade), 50 ppm/°C max temperature coefficient, and stable operation from 100 μA to 15 mA supply current - used in high-accuracy ADC/DAC biasing, portable instrumentation, and battery-powered data acquisition systems.
For engineers reviewing the LM4050BIM3-10/NOPB datasheet, LM4050BIM3-10/NOPB pinout, LM4050BIM3-10/NOPB application, or LM4050BIM3-10/NOPB equivalent, key selection criteria include output voltage accuracy over −40°C to +125°C, low 150 μVRMS wideband noise (10 Hz–10 kHz), no external capacitor requirement, and SOT-23 package compatibility with space-constrained PCB layouts.
Technical Context
The LM4050BIM3-10/NOPB employs bandgap-based Zener-zap trimmed shunt regulation with curvature-corrected temperature drift compensation, enabling stable 10 V reference output across industrial and extended temperature ranges. Its design eliminates need for output capacitance while tolerating arbitrary capacitive loads - critical for isolated sensor front-ends and low-noise analog signal chains.
It operates as a two-terminal device: cathode accepts input current and sets reference voltage at anode (ground-referenced node), with dynamic impedance of 0.7 Ω at 1 mA. Minimum operating current is 100 μA at 25°C, rising to 110 μA over −40°C to +125°C, ensuring reliable startup under ultra-low-power conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10 V nominal reverse breakdown voltage, fixed and non-adjustable |
| Initial Tolerance | ±0.2% at 25°C (B-grade), verified via wafer-level Zener-zap trimming |
| Temp Coefficient | ≤50 ppm/°C over −40°C to +125°C, enabling <±12 mV drift in full range |
| Operating Current | 100 μA to 15 mA - supports micropower sensing and high-current DAC reference buffering |
| Output Noise | 150 μVRMS (10 Hz–10 kHz), measured at 150 μA bias, suitable for 16-bit+ precision systems |
| Dynamic Impedance | 0.7 Ω at 1 mA, 120 Hz - ensures minimal load-induced voltage shift in varying current conditions |
| Long-Term Stability | 120 ppm after 1000 hrs at 25°C - critical for calibration-critical field-deployed equipment |
Pinout & Package
SOT-23 (DBZ) package: 3-pin surface-mount, 2.92 mm × 1.30 mm body size, JEDEC MO-178 compatible. Pin 1 = Cathode (input/shunt node), Pin 2 = Anode (ground reference), Pin 3 = NC (no internal connection, must float or tie to Pin 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Pin 1) | Shunt current input / voltage sense node | Accepts external current source; regulates voltage between Cathode and Anode to 10 V |
| Anode (Pin 2) | Reference ground / common return | Must be connected to system ground; defines 0 V reference point for output voltage |
| NC (Pin 3) | No internal connection | Electrically isolated; leave floating or connect to Pin 2 per TI layout guidance |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Stable operation without external C - reduces BOM count and board area in compact designs |
| Tolerates capacitive loads | Unconditional stability with any value or ESR of output capacitance - simplifies filtering in noisy environments |
| Fixed 10 V breakdown voltage | Factory-trimmed Zener-zap precision eliminates external resistor networks or trimming steps |
| Wide operating current range | 100 μA min to 15 mA max enables use from energy-harvesting sensors to high-speed data converters |
| Low thermal hysteresis | 2.8 mV max after −40°C ↔ +125°C cycling - preserves calibration integrity in thermally cycled systems |
Applications
| Portable Instrumentation | Data Acquisition Systems |
|---|---|
Use Scenario: Handheld multimeter with 24-bit sigma-delta ADC requiring stable reference under battery voltage decay. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 10 V reference for ADC full-scale calibration. Use Value: ±0.2% initial tolerance and ≤50 ppm/°C drift ensure <±0.01% full-scale error across operating temperature and battery life. |
Use Scenario: Isolated industrial DAQ module measuring 4–20 mA sensor loops with galvanically separated analog front-end. IC Role / Device Role / Timing Role: Ground-referenced shunt reference supplying excitation and measurement reference in isolated domain. Use Value: No-output-capacitor operation avoids creepage/clearance issues; 150 μVRMS noise supports >110 dB SNR in 16-bit+ systems. |
| Precision Audio Components | Energy Management Systems |
Use Scenario: High-fidelity audio ADC/DAC stage requiring ultra-low-noise, DC-stable reference for analog signal biasing. IC Role / Device Role / Timing Role: Low-noise 10 V shunt reference establishing clean common-mode voltage for op-amp input stages. Use Value: 150 μVRMS (10 Hz–10 kHz) and 0.7 Ω dynamic impedance minimize audible noise modulation and distortion. |
Use Scenario: Smart battery monitor IC in Li-ion pack with integrated fuel gauge and protection circuitry. IC Role / Device Role / Timing Role: Micropower reference for cell voltage measurement ADC, active during sleep mode. Use Value: 100 μA minimum operating current enables accurate voltage sampling at <10 μW quiescent power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5010IDR | Series reference (not shunt); requires external pass transistor; 3 ppm/°C tempco; 10 V output | Higher accuracy but needs additional components; unsuitable for 2-terminal topology constraints | Select when ultra-low drift (<5 ppm/°C) and higher PSRR are prioritized over simplicity and board space |
| TL431CDBVR | Adjustable shunt reference; 2.495 V nominal; ±1% initial tolerance; 500 mV dropout headroom needed | Requires two external resistors to set 10 V; higher tempco (92 ppm/°C); higher noise (200 μVRMS) | Select when cost sensitivity outweighs precision; acceptable where ±1% tolerance and higher noise are permissible |
Compared with REF5010IDR and TL431CDBVR, the LM4050BIM3-10/NOPB delivers factory-trimmed 10 V output in a 2-terminal SOT-23 package with superior initial accuracy (±0.2%), lower noise, and zero external component requirement - making it optimal for space- and power-constrained precision analog designs where shunt topology is mandated.
Availability
LM4050BIM3-10/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, data acquisition systems, and precision audio components requiring stable component supply with guaranteed long-term continuity and automotive-grade traceability.
Supply support for LM4050BIM3-10/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 leadership in precision reference design.
The LM4050-N series was developed for high-accuracy, low-power shunt reference applications in portable, industrial, and automotive systems - emphasizing micropower operation, capacitor-free stability, and wide-temperature performance.
FAQ
What is the minimum operating current for LM4050BIM3-10/NOPB at 25°C?
The LM4050BIM3-10/NOPB requires a minimum operating current of 100 μA at 25°C to maintain regulation within specification. This value increases to 110 μA over the full −40°C to +125°C extended temperature range. Below this threshold, the device may not sustain its rated 10 V output accuracy or stability.
Does LM4050BIM3-10/NOPB require an external output capacitor?
No - the LM4050BIM3-10/NOPB is specifically designed to operate stably without any external output capacitor. Its internal architecture ensures unconditional stability even with arbitrary capacitive loads, eliminating the need for external compensation and reducing bill-of-materials count.
What is the temperature coefficient specification for LM4050BIM3-10/NOPB?
The LM4050BIM3-10/NOPB has a maximum average temperature coefficient of 50 ppm/°C over the −40°C to +125°C range. This translates to a worst-case drift of ±12 mV across the full temperature span, supporting high-accuracy applications such as calibrated test equipment and precision data loggers.
How does the LM4050BIM3-10/NOPB differ from the LM4050AIM3-10/NOPB?
The LM4050BIM3-10/NOPB has ±0.2% initial output voltage tolerance at 25°C, whereas the LM4050AIM3-10/NOPB offers tighter ±0.1% tolerance. Both share identical 10 V nominal output, 50 ppm/°C max tempco, and SOT-23 packaging - the A-grade variant is selected when highest initial accuracy is mandatory.
Is LM4050BIM3-10/NOPB qualified for automotive applications?
No - the LM4050BIM3-10/NOPB is part of the industrial-grade LM4050-N series. For automotive use, TI offers the LM4050-N-Q1 family (e.g., LM4050BIM3-10Q/NOPB), which is AEC-Q100 Grade 1 qualified (−40°C to +125°C) and manufactured on an automotive-grade flow.
LM4050BIM3-10/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:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 150µVrms
- 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
LM4050BIM3-10/NOPB FAQ
1.How can I place an order for LM4050BIM3-10/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4050BIM3-10/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 LM4050BIM3-10/NOPB reliable?
The price and inventory of LM4050BIM3-10/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4050BIM3-10/NOPB is usually 5 days.
3.What payment methods are accepted for LM4050BIM3-10/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4050BIM3-10/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4050BIM3-10/NOPB?
LM4050BIM3-10/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4050BIM3-10/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 LM4050BIM3-10/NOPB?
For technical support, including LM4050BIM3-10/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4050BIM3-10/NOPB requirements.
6.How does Aetrix verify that LM4050BIM3-10/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4050BIM3-10/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 LM4050BIM3-10/NOPB meets industry standards.
7.What is the process for return or replacement of LM4050BIM3-10/NOPB?
All LM4050BIM3-10/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4050BIM3-10/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 LM4050BIM3-10/NOPB part is unused and in its original packaging.
Return procedure for LM4050BIM3-10/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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