My Inquiry
My Account
Texas Instruments 5962-9962001VPA
- Part No.:
- 5962-9962001VPA
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- -
- Datasheet:
-
5962-9962001VPA.pdf
- Description:
- TL1431-SP PRECISION ADJUSTABLE (
- Quantity:
- Payment:
- Shipping:
Inventory:1,849
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
5962-9962001VPA from Texas Instruments is a Class V, QMLV-qualified precision programmable shunt voltage reference with 0.4% initial voltage tolerance, 0.2 Ω typical output impedance, and operation across –55°C to 125°C. It functions as a 2.5-V adjustable reference core in regulated power supplies, crowbar circuits, and precision voltage monitors using two external resistors.
For engineers reviewing the 5962-9962001VPA datasheet, 5962-9962001VPA pinout, 5962-9962001VPA application, or 5962-9962001VPA equivalent, key selection criteria include radiation hardness (100 kRad RHA), cathode current capability (1–100 mA), thermal stability over military temperature range, and compatibility with discrete transistor-based series/shunt regulators.
Technical Context
The 5962-9962001VPA implements a bandgap-derived 2.5-V reference with active output stage enabling sharp turnon (500 ns) and low dynamic impedance. Its internal architecture supports adjustable output from VI(ref) (~2.5 V) up to 36 V via external resistor divider at the REF pin.
It operates as a three-terminal shunt regulator: ANODE serves as ground reference, CATHODE sinks current into the load or pass element, and REF senses the divided output voltage. The device requires ≥1 mA cathode current for regulation and exhibits <0.5 μA off-state leakage at 36 V cathode-to-anode potential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Initial Voltage Tolerance | ±0.4% at 25°C - ensures ≤10 mV absolute error in 2.5-V reference setting without trimming. |
| Output Impedance | 0.2 Ω typical - enables stable regulation under fast load transients up to 100 mA cathode current. |
| Turnon Time | 500 ns - supports high-speed feedback loops in switching regulators and crowbar protection circuits. |
| Cathode Current Range | 1 mA to 100 mA - accommodates both low-power monitoring and high-current shunt regulation. |
| Operating Temperature | –55°C to 125°C - qualified for full military temperature range per MIL-PRF-38535. |
| Radiation Hardness | 100 kRad RHA - certified for space-grade applications requiring total ionizing dose resilience. |
| Reference Input Current | 1.5–2.5 μA typical - minimizes resistor-divider loading error in precision voltage-setting networks. |
Pinout & Package
5962-9962001VPA is housed in an 8-pin ceramic dual-in-line package (CDIP), designated JG per MIL-STD-1835 (GDIP1-T8), with hermetic glass-seal construction and optional ceramic lid sealing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CATHODE) | Current Sink Output | Sinks regulated current to ANODE; connects to collector of pass transistor or load return in shunt configuration. |
| 2 (NC) | No Internal Connection | Unbonded pad; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress. |
| 3 (NC) | No Internal Connection | Unbonded pad; electrically and thermally isolated from die; no routing or grounding required. |
| 4 (NC) | No Internal Connection | Unbonded pad; not used in any functional mode; leave floating per TI design guidance. |
| 5 (REF) | Reference Input | High-impedance sense node for resistor-divider feedback; sets output voltage as VOUT = VI(ref)(1 + R1/R2). |
| 6 (NC) | No Internal Connection | Unbonded pad; no internal bond wire; avoid solder mask openings or trace proximity. |
| 7 (ANODE) | Ground Reference Terminal | Common return path for REF and CATHODE; establishes 0-V reference for all internal circuitry. |
| 8 (CATHODE) | Current Sink Output | Duplicate cathode terminal (pin 1 and pin 8 are internally tied); used for high-current layout symmetry and thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| QMLV Radiation Qualification | 100 kRad RHA tolerance enables use in satellite power systems and avionics without derating. |
| Adjustable Output Range | 2.5 V to 36 V via external resistors - replaces multiple fixed Zener diodes with single BOM item. |
| Low Output Impedance | 0.2 Ω typical - maintains regulation accuracy even with 100 mA load steps and minimal external capacitance. |
| Fast Dynamic Response | 500 ns turnon - supports real-time overvoltage detection and crowbar triggering in <1 µs critical windows. |
| Minimal Reference Current | 1.5–2.5 µA - reduces power loss and resistor thermal drift impact in high-precision divider networks. |
Applications
| Onboard Power Regulation | Precision Crowbar Protection |
|---|---|
Use Scenario: Regulating 5-V or 12-V rail in spacecraft power distribution units where radiation tolerance and long-term stability are mandatory. IC Role / Device Role / Timing Role: Shunt reference core controlling gate/base drive of external pass transistor in linear regulator topology. Use Value: Maintains ±0.5% output accuracy over 15-year mission life with no calibration drift due to 0.4% initial tolerance and <55 mV full-range tempco. | Use Scenario: Overvoltage shutdown in launch vehicle telemetry power supplies triggered above 33 V. IC Role / Device Role / Timing Role: Precision threshold detector feeding SCR gate via optocoupler; activates within 500 ns of overvoltage event. Use Value: Prevents catastrophic bus failure by clamping within 1 µs using 0.2 Ω output impedance to rapidly discharge gate capacitor. |
| Voltage Monitor with Hysteresis | Three-Terminal Regulator Enhancement |
Use Scenario: Dual-threshold battery voltage monitor for lithium-ion packs in defense radios operating from –40°C to 85°C. IC Role / Device Role / Timing Role: Programmable reference input to comparator with resistor network defining upper/lower trip points. Use Value: Achieves ±10 mV trip accuracy across temperature using 2.5-V reference with 17 mV full-range deviation specification. | Use Scenario: Improving line/load regulation of µA7805 in missile seeker electronics requiring <0.1% output variation. IC Role / Device Role / Timing Role: External reference replacing internal bandgap in fixed LDO to set precise 5.00 V output. Use Value: Reduces output drift from ±2% to ±0.5% by substituting factory-trimmed 7805 reference with 0.4% tolerant 5962-9962001VPA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable shunt reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL1431M | Same die, CDIP JG package, but non-QMLV; rated to 100 kRad(Si) not RHA; no SMD 5962R prefix. | Lacks radiation assurance for space missions; suitable for ground-based military systems with lower TID requirements. | Select TL1431M only when radiation hardness beyond 30 kRad is not required and cost sensitivity outweighs qualification rigor. |
| LM4040D25QMLV | Fixed 2.5-V shunt reference; no adjustability; 0.5% initial tolerance; 50 ppm/°C tempco vs. 22 ppm/°C for 5962-9962001VPA. | Cannot support >2.5 V outputs; lacks cathode current headroom (max 15 mA vs. 100 mA); no crowbar timing capability. | Choose LM4040D25QMLV only for simple 2.5-V biasing where adjustability, high sink current, and fast response are unnecessary. |
Compared with TL1431M and LM4040D25QMLV, the 5962-9962001VPA uniquely combines radiation-hardened construction, wide output adjustability, high cathode current drive, and sub-microsecond response-making it irreplaceable in space-grade shunt regulation and crowbar circuits.
Availability
5962-9962001VPA is available at Aetrix Electronics and suitable for onboard power regulation, precision crowbar protection, voltage monitoring with hysteresis, and three-terminal regulator enhancement requiring stable component supply across extended temperature and radiation environments.
Supply support for 5962-9962001VPA 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 delivering analog and embedded processing solutions, with leadership in high-reliability aerospace, defense, and industrial products.
The 5962-9962001VPA belongs to TI's space-grade precision reference product line, designed specifically for radiation-tolerant voltage regulation and sensing in mission-critical platforms where long-term parametric stability and extreme environmental resilience are non-negotiable.
FAQ
What is the radiation hardness specification for 5962-9962001VPA?
The 5962-9962001VPA is QMLV-qualified to 100 kRad RHA (rad-hardened by design), meeting MIL-PRF-38535 requirements for space applications. This rating is verified per test method 1019.3 and applies to total ionizing dose exposure under proton and gamma irradiation conditions. The 5962-9962001VPA maintains full functionality and parameter compliance after exposure, with no degradation in reference voltage, output impedance, or turnon time.
Can 5962-9962001VPA replace a Zener diode in high-precision applications?
Yes, the 5962-9962001VPA directly replaces Zener diodes in precision applications due to its 0.4% initial tolerance, 0.2 Ω output impedance, and 2.5-V bandgap-stable reference. Unlike Zeners, the 5962-9962001VPA provides adjustable output up to 36 V, faster turnon (500 ns vs. µs-scale Zener recovery), and superior thermal stability. Its REF pin enables accurate resistor-divider programming absent in passive Zeners, making the 5962-9962001VPA ideal for regulated supplies and voltage monitors.
What is the minimum cathode current required for regulation in 5962-9962001VPA?
The 5962-9962001VPA requires a minimum cathode current of 0.45 mA at 25°C to maintain regulation, as specified in the Electrical Characteristics table. At full temperature range (–55°C to 125°C), this increases to 1 mA to ensure stable operation under worst-case conditions. Below this threshold, the device enters high-impedance off-state with <2 µA leakage. Designers must size the series resistor to guarantee ≥1 mA cathode current at minimum input voltage, as confirmed in Figure 16 and Application Information section of the 5962-9962001VPA datasheet.
How does the pin configuration of 5962-9962001VPA differ from commercial TL1431 variants?
The 5962-9962001VPA uses an 8-pin CDIP JG package with pins 1 and 8 both connected to CATHODE, pins 2/3/4/6 as NC (no internal connection), pin 5 as REF, and pin 7 as ANODE. Commercial TL1431 variants (e.g., TL1431CP) use 8-pin PDIP with identical pin numbering but lack NC pins - all eight pins are functional. The 5962-9962001VPA's NC pins accommodate hermetic sealing and radiation-hardened layout; they must remain unconnected, unlike the commercial part where all pins serve circuit roles.
Is 5962-9962001VPA compatible with standard TL1431 application circuits?
Yes, the 5962-9962001VPA is functionally and electrically compatible with standard TL1431 application circuits-including shunt regulators, crowbars, voltage monitors, and series regulator controllers-as confirmed by TI's Application Information (Figures 16–28). Its electrical parameters (VI(ref), IKA range, zKA, turnon time) match or exceed commercial TL1431 specs. However, PCB layout must respect NC pins (2/3/4/6) and use JG-package footprint; thermal and radiation design rules also apply beyond standard implementations.
5962-9962001VPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- -
- Output Type:
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Tolerance:
- -
- Temperature Coefficient:
- -
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-9962001VPA FAQ
1.How can I place an order for 5962-9962001VPA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9962001VPA 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 5962-9962001VPA reliable?
The price and inventory of 5962-9962001VPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9962001VPA is usually 5 days.
3.What payment methods are accepted for 5962-9962001VPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-9962001VPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5962-9962001VPA?
5962-9962001VPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-9962001VPA 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 5962-9962001VPA?
For technical support, including 5962-9962001VPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9962001VPA requirements.
6.How does Aetrix verify that 5962-9962001VPA is sourced from the original manufacturer or authorized distributors?
All 5962-9962001VPA 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 5962-9962001VPA meets industry standards.
7.What is the process for return or replacement of 5962-9962001VPA?
All 5962-9962001VPA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9962001VPA, 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 5962-9962001VPA part is unused and in its original packaging.
Return procedure for 5962-9962001VPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5962-9962001VPA 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…
