My Inquiry
My Account
Texas Instruments TL4050A10IDBZT
- Part No.:
- TL4050A10IDBZT
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TL4050A10IDBZT.pdf
- Description:
- IC VREF SHUNT 0.1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:165
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TL4050A10IDBZT from Texas Instruments is a precision micropower shunt voltage reference delivering a stable 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 with any capacitive load-enabling use in high-resolution ADC biasing and portable power-supply monitoring.
For engineers reviewing the TL4050A10IDBZT datasheet, TL4050A10IDBZT pinout, TL4050A10IDBZT application, or TL4050A10IDBZT equivalent, key selection criteria include its 10V fixed output, A-grade accuracy, SOT-23-3 package compatibility, low-noise performance, and industrial-temperature operation without external capacitance.
Technical Context
The TL4050A10IDBZT functions as a two-terminal shunt reference, sinking cathode current to regulate voltage across its anode–cathode terminals. Its internal bandgap core achieves 10V reverse breakdown with 0.7Ω typical dynamic impedance at 1mA and thermal hysteresis of 2.8mV after –40°C/125°C cycling.
It requires no output capacitor and remains stable under all capacitive loads due to inherent pole-zero compensation. The device's 100μA minimum operating current (typical) and 15mA absolute maximum cathode current define its usable bias range in series-resistor-based shunt regulator topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10V nominal; enables direct LSB-matched scaling for 10-bit+ ADCs referenced to 10V full-scale. |
| Initial Tolerance | ±0.1% at 25°C; supports 12-bit system accuracy without trimming in data-acquisition front-ends. |
| Temp Coefficient | ±50ppm/°C max over –40°C to 85°C; contributes ≤0.5mV drift across industrial temperature range. |
| Noise (10Hz–10kHz) | 150μVRMS; limits quantization error in precision instrumentation signal chains. |
| Cathode Current Range | 60μA to 15mA; allows design flexibility in low-power sensor nodes and higher-current supply monitors. |
| Dynamic Impedance | 0.7Ω at 1mA/120Hz; ensures minimal load-induced voltage shift in dynamic current-sink applications. |
| Long-Term Stability | 120ppm after 1000h; supports >10-year calibration intervals in test equipment and process controls. |
Pinout & Package
SOT-23-3 package (DBZ), 2.92mm × 1.3mm × 1.02mm body, gull-wing leads, JEDEC MO-178AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Reference ground return path | Must connect to system ground; serves as common reference node for load and bias resistor. |
| Cathode (Pin 2) | Regulated output terminal | Sinks current to maintain 10V across anode–cathode; connects to VREF input of ADC/DAC or feedback node. |
| NC / Floating (Pin 3) | No internal connection | Must remain unconnected or tied to Pin 2 per TI recommendation to avoid parasitic Schottky conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 10V output | Eliminates external resistor divider errors and reduces BOM count in calibrated measurement systems. |
| No output capacitor required | Reduces PCB area and component cost while enabling immediate start-up in battery-powered equipment. |
| Stable with all capacitive loads | Allows direct connection to ADC input capacitors or long traces without phase-margin risk. |
| Low 60μA typical operating current | Extends battery life in portable instrumentation and wireless sensor transmitters. |
| –40°C to 85°C operation | Meets industrial ambient requirements for factory automation and energy management controllers. |
Applications
| Data-Acquisition Systems | Power-Supply Monitors |
|---|---|
Use Scenario: High-accuracy analog front-end for 12-bit SAR ADCs in environmental sensor nodes. IC Role / Device Role / Timing Role: Provides stable 10V reference voltage for ADC full-scale calibration and offset nulling. Use Value: Enables ±0.5LSB total unadjusted error budget by contributing only ±0.1% initial error and <0.5mV temp drift. | Use Scenario: Monitoring 24V DC bus voltage in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Shunt reference in resistor-divider + op-amp comparator circuit detecting overvoltage thresholds. Use Value: Delivers repeatable 10V threshold with <1mV hysteresis, ensuring reliable trip-point consistency across temperature. |
| Instrumentation & Test Equipment | Battery-Powered Equipment |
Use Scenario: Precision voltage source in handheld multimeter reference subsystems. IC Role / Device Role / Timing Role: Primary voltage standard for auto-ranging and autoranging DAC calibration routines. Use Value: Maintains 120ppm long-term stability over 1000 hours, supporting annual field calibration cycles. | Use Scenario: Reference for fuel-gauge ICs in lithium-ion battery packs for medical wearables. IC Role / Device Role / Timing Role: Low-current 10V reference enabling accurate cell-voltage sampling during sleep mode. Use Value: Draws only 60μA typical, extending standby time beyond 1 year on a 200mAh coin cell. |
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, 100μA min current, SC-70 package | Higher min current increases power in ultra-low-IQ designs; SC-70 footprint differs from SOT-23-3 | Select when board space permits SC-70 and ±0.2% tolerance suffices for cost-sensitive production. |
| ADR3410ARJZ-R7 | 10V, ±0.1% tolerance, 120ppm/°C tempco, 1.2mA min current, SOT-23-5 | Higher min current and wider tempco reduce suitability for battery operation; 5-pin package requires layout change | Choose for improved PSRR in noisy industrial environments where 5-pin routing is acceptable. |
Compared with REF3010AIDBZR and ADR3410ARJZ-R7, TL4050A10IDBZT offers the lowest operating current (60μA) and tightest industrial-tempco (±50ppm/°C) in a drop-in SOT-23-3 footprint-making it optimal for portable, high-accuracy, low-power applications where layout reuse is critical.
Availability
TL4050A10IDBZT is available at Aetrix Electronics and suitable for data-acquisition systems, power-supply monitors, and portable instrumentation requiring stable component supply with guaranteed long-term sourcing.
Supply support for TL4050A10IDBZT 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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs and industrial-grade components.
The TL4050 series belongs to TI's precision shunt voltage reference product line, engineered for high-accuracy, low-power, and capacitor-free operation in measurement, control, and portable electronics.
FAQ
What is the output voltage tolerance of TL4050A10IDBZT at 25°C?
The TL4050A10IDBZT has a maximum initial output voltage tolerance of ±0.1% at 25°C, corresponding to ±10mV around its nominal 10V output. This A-grade specification is verified per TI's Electrical Characteristics table 5.10 and applies under 100μA cathode current test conditions.
Does TL4050A10IDBZT require an external output capacitor?
No, TL4050A10IDBZT does not require an external output capacitor for stability. Its internal design ensures unconditional stability with all capacitive loads, including direct connection to ADC input capacitors or long PCB traces-eliminating the need for bypass components in space-constrained layouts.
What is the minimum cathode current needed for TL4050A10IDBZT to regulate properly?
The TL4050A10IDBZT requires a minimum cathode current of 60μA (typical) and 103μA (maximum over temperature) to maintain regulation within specifications. Below this threshold, output voltage may deviate beyond the ±0.1% tolerance band, especially at temperature extremes.
Can TL4050A10IDBZT operate across the full –40°C to 125°C range?
No, TL4050A10IDBZT is rated for operation from –40°C to 85°C only. For extended temperature range (–40°C to 125°C), the qualified variant is TL4050A10QDBZT-identifiable by the 'Q' suffix in the orderable part number and distinct electrical characteristics in section 5.11 of the datasheet.
How does the noise performance of TL4050A10IDBZT compare to lower-voltage variants?
TL4050A10IDBZT exhibits 150μVRMS wideband noise (10Hz–10kHz), higher than the 41μVRMS of the 2.5V TL4050A25IDBZT due to increased internal gain and thermal noise scaling with output voltage. This is confirmed in Tables 5.4 and 5.10, where noise rises proportionally with VKA across the TL4050 family.
TL4050A10IDBZT 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:
- ±0.1%
- 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:
- SOT-23-3
TL4050A10IDBZT FAQ
1.How can I place an order for TL4050A10IDBZT through Aetrix?
Please submit a Request for Quotation (RFQ) for TL4050A10IDBZT 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 TL4050A10IDBZT reliable?
The price and inventory of TL4050A10IDBZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL4050A10IDBZT is usually 5 days.
3.What payment methods are accepted for TL4050A10IDBZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL4050A10IDBZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL4050A10IDBZT?
TL4050A10IDBZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL4050A10IDBZT 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 TL4050A10IDBZT?
For technical support, including TL4050A10IDBZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL4050A10IDBZT requirements.
6.How does Aetrix verify that TL4050A10IDBZT is sourced from the original manufacturer or authorized distributors?
All TL4050A10IDBZT 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 TL4050A10IDBZT meets industry standards.
7.What is the process for return or replacement of TL4050A10IDBZT?
All TL4050A10IDBZT units undergo pre-shipment inspection (PSI). If there is an issue with TL4050A10IDBZT, 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 TL4050A10IDBZT part is unused and in its original packaging.
Return procedure for TL4050A10IDBZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL4050A10IDBZT 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…
