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Texas Instruments 5962-8868503HA
- Part No.:
- 5962-8868503HA
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
5962-8868503HA.pdf
- Description:
- IC SUPERVISOR PWR SUP SUPPRT ADJ
- Quantity:
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Inventory:196
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Product details
Overview
5962-8868503HA from Texas Instruments is a military-grade supply-voltage supervisor IC designed as a power-on and undervoltage reset controller for 5-V microprocessor systems. It features a 4.55-V precision SENSE threshold, true/complement RESET outputs, externally programmable reset pulse duration via CT capacitor (td ≈ 2.6×10⁴ × CT), and operation across –55°C to +125°C. It delivers reliable reset assertion down to VCC ≥ 1 V and supports MIL-PRF-38535 Class B screening.
For engineers reviewing the 5962-8868503HA datasheet, 5962-8868503HA pinout, 5962-8868503HA application, or 5962-8868503HA equivalent, this device serves as a high-reliability, temperature-stable voltage supervisor for aerospace, defense, and ruggedized embedded control where guaranteed reset behavior under extreme thermal and voltage transients is mandatory.
Technical Context
The 5962-8868503HA implements a dual-comparator architecture with a precision temperature-compensated bandgap reference (2.53 V typical) and hysteresis (30 mV) at the SENSE input. Its internal delay timer activates only after VCC exceeds ~3 V and SENSE remains above VT+, ensuring clean power-up sequencing without false triggers.
It provides complementary open-collector RESET and RESET outputs capable of sinking 16 mA each, with propagation delays under 500 ns and rise/fall times under 200 ns. The RESIN input enables manual reset initiation, while REF requires a 0.1-µF bypass capacitor to suppress fast transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIT– Threshold | 4.45–4.65 V at SENSE input - defines precise undervoltage trip point for 5-V systems |
| Reset Assertion Voltage | 1 V minimum VCC - guarantees valid RESET output even during brownout recovery |
| Reference Voltage | 2.48–2.58 V - stable, temperature-compensated bandgap reference for internal comparators |
| Operating Temperature | –55°C to +125°C - fully characterized per MIL-PRF-38535 for extended environmental reliability |
| Supply Current | ≤4 mA at VCC = 18 V - low quiescent draw suitable for always-on monitoring in power-constrained systems |
| Output Drive | ±16 mA sink/source - sufficient to directly drive TTL/CMOS inputs or small external buffers without level-shifting |
| Hysteresis | 30 mV (VIT+ – VIT–) - prevents chatter during slow-rising/falling supply transitions |
Pinout & Package
5962-8868503HA is supplied in a hermetically sealed 10-pin ceramic flatpack (U package), compliant with MIL-STD-883 and screened to Class B per MIL-PRF-38535. Pin numbering follows standard U-package top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | REF | Internal 2.53-V reference output - requires 0.1-µF capacitor to GND for noise immunity |
| 2 | RESIN | Manual reset input - active-low; pulls RESET/RESET active when driven below 0.8 V |
| 3 | CT | Timing capacitor connection - sets reset pulse duration (td ≈ 2.6×10⁴ × CT) |
| 4 | GND | Analog/digital ground reference - single-point return for all internal circuitry |
| 5 | VCC | Positive supply input - operates from 3.6 V to 18 V; powers internal comparators and logic |
| 6 | SENSE | Undervoltage monitor input - compares against internal 4.55-V threshold; hysteresis improves noise margin |
| 7 | RESET | Active-low open-collector reset output - sinks 16 mA; asserted during power-up and undervoltage |
| 8 | RESET | Active-high open-collector complement reset output - complements RESET state; same timing |
| 9, 10 | NC | No internal connection - electrically isolated; must be left unconnected or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| True and complement reset outputs | Simultaneous active-low RESET and active-high RESET enable direct interface to both inverting and non-inverting reset inputs without external logic |
| Externally adjustable pulse duration | Reset timeout set precisely by external CT capacitor (e.g., 0.1 µF → ~260 ms), enabling system-specific reset hold time tuning |
| Power-on reset generation from VCC ≥ 1 V | Guarantees early reset assertion during power ramp-up, preventing CPU lockup before clock stabilization |
| Temperature-compensated voltage reference | 2.53-V ±0.05 V reference stable over –55°C to +125°C ensures consistent threshold accuracy across full military temperature range |
| MIL-PRF-38535 Class B compliance | Includes 100% electrical screening, burn-in, and lot traceability - meets requirements for high-integrity aerospace and defense applications |
Applications
| Aerospace Avionics Power Sequencing | Defense Radar Signal Processing Units |
|---|---|
|
Use Scenario: Monitors 5-V FPGA configuration supply during cold-start and in-flight voltage sags caused by EMI or load switching. IC Role / Device Role / Timing Role: Primary power-on reset generator and undervoltage detector; asserts RESET until VSENSE exceeds 4.55 V and holds for programmable duration. Use Value: Prevents partial FPGA configuration or corrupted register writes by guaranteeing >200-ms reset hold time even during transient dips to 4.2 V. |
Use Scenario: Supervises DSP core voltage in airborne radar subsystems exposed to wide thermal cycling and vibration-induced supply noise. IC Role / Device Role / Timing Role: Dual-output supervisor providing synchronized reset to ADC, DAC, and processor domains using RESET and RESET signals. Use Value: Eliminates need for external inverters or RC networks, reducing BOM count and improving timing correlation between analog and digital reset domains. |
| Tactical Vehicle Engine Control Modules | Spacecraft Onboard Computer Power Management |
|
Use Scenario: Ensures deterministic restart of microcontroller after battery voltage collapse during cranking or alternator failure. IC Role / Device Role / Timing Role: Undervoltage lockout and delayed reset controller; uses RESIN for software-initiated safe shutdown sequences. Use Value: Enables controlled firmware save-to-EEPROM prior to reset assertion, preserving fault logs and calibration data across power interruptions. |
Use Scenario: Provides radiation-tolerant reset supervision for command & data handling (C&DH) units operating in LEO with wide thermal swings. IC Role / Device Role / Timing Role: High-reliability voltage monitor with MIL-qualified screening; interfaces to rad-hard FPGA reset pins via open-collector outputs. Use Value: Meets NASA EEE-INST-002 requirements for Class S components through verified process controls and lot-level test documentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 5962-8868505HA | Same U-package, identical electrical specs, but screened to Class K (lower screening rigor than Class B) | Suitable for non-critical subsystems where full Class B qualification is not mandated | Select 5962-8868505HA only if program-level reliability requirements permit reduced screening depth and test coverage. |
| TL7705BMU | Commercial-grade version (non-MIL); same pinout and function but lacks MIL-PRF-38535 screening and extended temp characterization | Applicable in industrial or commercial prototypes where cost and lead time outweigh military qualification needs | Choose TL7705BMU for early development or non-flight hardware; verify long-term stability at –55°C/+125°C independently if used outside spec limits. |
Compared with 5962-8868503HA, 5962-8868505HA offers identical form/function with reduced test coverage, while TL7705BMU provides identical electrical behavior without military screening-making the former a lower-tier qualified alternative and the latter a cost-optimized commercial substitute.
Availability
5962-8868503HA is available at Aetrix Electronics and suitable for aerospace avionics, defense radar subsystems, and tactical vehicle engine control modules requiring stable component supply under extended temperature and high-reliability constraints.
Supply support for 5962-8868503HA 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 power management technologies with over 50 years of innovation in high-reliability components.
The TL7705B product line was developed specifically for military and aerospace applications requiring guaranteed reset behavior across extreme temperatures and voltage transients, with focus on MIL-PRF-38535 compliance and long-term supply assurance.
FAQ
What is the exact SENSE input threshold voltage for 5962-8868503HA?
The 5962-8868503HA has a negative-going SENSE input threshold (VIT–) of 4.45 V minimum to 4.65 V maximum at full temperature range (–55°C to +125°C), with a typical value of 4.55 V at 25°C. This threshold is factory-trimmed and temperature-compensated to ensure consistent 5-V system supervision across its entire operational envelope.
Does 5962-8868503HA require an external capacitor on the REF pin?
Yes, 5962-8868503HA requires a 0.1-µF ceramic capacitor connected between REF and GND. This capacitor stabilizes the internal 2.53-V reference voltage against fast supply transients and reduces noise coupling into the precision comparator circuitry-omitting it risks false reset triggering or degraded threshold accuracy.
How is the reset pulse duration programmed on 5962-8868503HA?
The reset pulse duration on 5962-8868503HA is set by an external capacitor (CT) connected to the CT pin, using the formula td ≈ 2.6 × 10⁴ × CT, where CT is in farads and td is in seconds. For example, a 0.1-µF capacitor yields ~260 ms, enabling precise tailoring of reset hold time to match processor requirements.
What is the operating supply voltage range for 5962-8868503HA?
The 5962-8868503HA operates from a supply voltage (VCC) of 3.6 V to 18 V. It guarantees functional reset assertion down to VCC ≥ 1 V, allowing reliable operation during brownout conditions and ensuring early reset activation during power-up before the main supply reaches nominal levels.
Is 5962-8868503HA pin-compatible with other TL7705B variants?
Yes, 5962-8868503HA shares the same 10-pin U-package pinout with TL7705BMU and 5962-8868505HA. All three use identical pin assignments for REF, RESIN, CT, GND, VCC, SENSE, RESET, RESET, and NC pins-enabling direct PCB footprint reuse across qualified and commercial versions of the TL7705B family.
5962-8868503HA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-8868503HA FAQ
1.How can I place an order for 5962-8868503HA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8868503HA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of 5962-8868503HA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8868503HA is usually 5 days.
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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 5962-8868503HA?
For technical support, including 5962-8868503HA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8868503HA requirements.
6.How does Aetrix verify that 5962-8868503HA is sourced from the original manufacturer or authorized distributors?
All 5962-8868503HA 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 5962-8868503HA meets industry standards.
7.What is the process for return or replacement of 5962-8868503HA?
All 5962-8868503HA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8868503HA, 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 5962-8868503HA part is unused and in its original packaging.
Return procedure for 5962-8868503HA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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