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Texas Instruments TL4050A10IDCKT
- Part No.:
- TL4050A10IDCKT
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TL4050A10IDCKT.pdf
- Description:
- IC VREF SHUNT 0.1% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:301
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Product details
Overview
TL4050A10IDCKT from Texas Instruments is a precision micropower shunt voltage reference delivering a fixed 10V output with ±0.1% initial tolerance and ±50ppm/°C temperature coefficient over –40°C to 85°C. It operates from 60μA to 15mA cathode current, exhibits 150μVRMS wideband noise, and maintains stability without an output capacitor-ideal for high-accuracy ADC/DAC biasing in portable instrumentation.
For engineers reviewing the TL4050A10IDCKT datasheet, TL4050A10IDCKT pinout, TL4050A10IDCKT application, or TL4050A10IDCKT equivalent, key selection criteria include its SC-70 package footprint, low dynamic impedance (0.7Ω), thermal hysteresis (2.8mV), long-term stability (120ppm), and compatibility with capacitive loads in space-constrained analog signal chains.
Technical Context
The TL4050A10IDCKT functions as a two-terminal shunt reference, requiring only an external series resistor to regulate voltage across a load. Its internal bandgap core achieves tight initial accuracy and low drift via curvature-compensated design, enabling stable operation across full industrial temperature range without trimming.
It delivers 10V reverse breakdown at 100μA test current, with dynamic impedance of 0.7Ω at 1mA and 120Hz, and supports load current variation up to 15mA while maintaining output regulation within ±23mV across 1mA–15mA cathode current range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10V nominal; enables precise 12-bit ADC full-scale calibration with 1mV LSB resolution in 5V systems. |
| Initial Tolerance | ±0.1% max at 25°C; ensures ≤10mV absolute error before temperature or aging effects. |
| Temp Coefficient | ±50ppm/°C max over –40°C to 85°C; contributes ≤5.5mV drift across full operating range. |
| Noise (10Hz–10kHz) | 150μVRMS typical; limits added uncertainty to <0.015% of full-scale in precision measurement paths. |
| Dynamic Impedance | 0.7Ω at 1mA/120Hz; minimizes output voltage shift under varying load current transients. |
| Min Cathode Current | 100μA typical; allows ultra-low-power operation in battery-powered sensor nodes. |
| Thermal Hysteresis | 2.8mV over –40°C ↔ 125°C cycling; defines repeatability error after thermal stress exposure. |
Pinout & Package
TL4050A10IDCKT is housed in a 3-pin SC-70 (DCK) package, measuring 2.0mm × 2.1mm × 0.9mm, optimized for high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Reference ground terminal | Connected to system ground; serves as return path for cathode current and load current. |
| Cathode (Pin 2) | Output voltage node | Provides regulated 10V output; must be biased above anode by external resistor to sustain conduction. |
| NC / Floating (Pin 3) | No-connect terminal | Internally unused; must remain unconnected or tied to Pin 2 per TI SOT-23/SC-70 layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitor-free stability | Operates stably with any capacitive load-eliminates need for output bypass capacitor and associated board area. |
| Micropower operation | 60μA typical minimum cathode current enables >10-year battery life in always-on monitoring circuits. |
| Extended temperature range | Specified from –40°C to +85°C; supports deployment in automotive cabin modules and industrial field sensors. |
| Low thermal hysteresis | 2.8mV max; ensures repeatable voltage output after thermal cycling-critical for calibration-critical equipment. |
| ESD robustness | ±2000V HBM rating; withstands handling and board-level ESD events without parameter shift or failure. |
Applications
| Data-Acquisition Systems | Power-Supply Monitors |
|---|---|
Use Scenario: High-resolution 12-bit SAR ADC front-end in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Provides stable 10V reference for ADC full-scale calibration and ratiometric sensor excitation. Use Value: Enables ≤0.01% total unadjusted error (TUE) over temperature, meeting Class A metrology requirements. | Use Scenario: Precision feedback path in isolated DC-DC converters for telecom base stations. IC Role / Device Role / Timing Role: Shunt-based voltage sense node referenced to secondary-side ground, decoupled from primary control loop. Use Value: Delivers ±0.1% initial accuracy and <5mV total drift over lifetime-reducing need for periodic recalibration. |
| Instrumentation & Test Equipment | Battery-Powered Equipment |
Use Scenario: Reference source in handheld oscilloscope vertical amplifiers and arbitrary waveform generator DACs. IC Role / Device Role / Timing Role: Low-noise 10V bias for op-amp gain-setting networks and DAC reference inputs. Use Value: 150μVRMS noise floor prevents degradation of ENOB beyond 11.5 bits in 12-bit signal chains. | Use Scenario: Voltage reference in wireless IoT sensor nodes powered by coin-cell batteries. IC Role / Device Role / Timing Role: Micropower shunt reference establishing ADC reference rail with minimal quiescent draw. Use Value: 60μA min cathode current allows operation down to 2.2V supply, extending usable battery voltage range by 15%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3010AIDBZR | 10V, ±0.2% initial tolerance, 100ppm/°C, SOT-23-3, 50μA min current | Higher tempco and looser tolerance; lower min current enables deeper sleep modes | Prefer when cost sensitivity outweighs accuracy requirements and board space permits SOT-23 |
| ADR3410ARJZ-R7 | 10V, ±0.1% initial tolerance, 30ppm/°C, SOT-23-5, 120μA min current, 10μVRMS noise | Lower noise and tempco but higher quiescent current and 5-pin package | Choose when sub-10μVRMS noise is mandatory and SC-70 footprint is not required |
Compared with REF3010AIDBZR and ADR3410ARJZ-R7, TL4050A10IDCKT offers the smallest footprint (SC-70), lowest cost, and best balance of accuracy (±0.1%), noise (150μVRMS), and micropower operation (60μA)-making it optimal for volume production of compact, battery-aware analog systems.
Availability
TL4050A10IDCKT is available at Aetrix Electronics and suitable for data-acquisition systems, power-supply monitors, and battery-powered instrumentation requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for TL4050A10IDCKT 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 over 90 years of innovation in precision analog ICs.
The TL4050 series was developed to deliver high-accuracy, low-power shunt references for portable and space-constrained measurement systems-emphasizing ease of use, capacitor-free stability, and robust thermal performance.
FAQ
What is the operating temperature range for TL4050A10IDCKT?
The TL4050A10IDCKT is specified for industrial temperature operation from –40°C to +85°C. This range is confirmed in Section 5.10 of the datasheet under "TL4050x10I Electrical Characteristics" and applies to the 'I' suffix variant. It does not support the extended –40°C to +125°C range offered by the 'Q' grade variants like TL4050A10QDCKT.
Does TL4050A10IDCKT require an output capacitor?
No, TL4050A10IDCKT does not require an output capacitor for stability. As stated in Section 8.1 and the Description section, it is designed to remain stable with all capacitive loads-including zero capacitance-and no external capacitor is needed for proper operation.
What is the minimum cathode current required for TL4050A10IDCKT to maintain regulation?
The TL4050A10IDCKT requires a minimum cathode current of 100μA (typical) and 103μA (max over temperature) to maintain regulation, as specified in Table 5.10. Below this threshold, the device exits regulation and output voltage drops nonlinearly.
How is the SC-70 pinout configured for TL4050A10IDCKT?
TL4050A10IDCKT uses a 3-pin SC-70 (DCK) package with Pin 1 = Anode (ground), Pin 2 = Cathode (10V output), and Pin 3 = No-connect. Per Section 8.2, Pin 3 must remain floating or be tied to Pin 2-never used as a functional terminal.
What is the long-term stability specification for TL4050A10IDCKT?
The TL4050A10IDCKT exhibits 120ppm long-term stability after 1000 hours of operation at 25°C and 100μA cathode current, as documented in Tables 5.10 and 5.11. This value represents the maximum expected drift due to aging under controlled conditions.
TL4050A10IDCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- ±0.1%
- 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:
- SC-70-5
TL4050A10IDCKT FAQ
1.How can I place an order for TL4050A10IDCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TL4050A10IDCKT 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 TL4050A10IDCKT reliable?
The price and inventory of TL4050A10IDCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL4050A10IDCKT is usually 5 days.
3.What payment methods are accepted for TL4050A10IDCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL4050A10IDCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL4050A10IDCKT?
TL4050A10IDCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL4050A10IDCKT 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 TL4050A10IDCKT?
For technical support, including TL4050A10IDCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL4050A10IDCKT requirements.
6.How does Aetrix verify that TL4050A10IDCKT is sourced from the original manufacturer or authorized distributors?
All TL4050A10IDCKT 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 TL4050A10IDCKT meets industry standards.
7.What is the process for return or replacement of TL4050A10IDCKT?
All TL4050A10IDCKT units undergo pre-shipment inspection (PSI). If there is an issue with TL4050A10IDCKT, 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 TL4050A10IDCKT part is unused and in its original packaging.
Return procedure for TL4050A10IDCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL4050A10IDCKT Tags
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LM4040DIM3X-2.5/NOPB
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