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Texas Instruments 5962-8868505HA
- Part No.:
- 5962-8868505HA
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
5962-8868505HA.pdf
- Description:
- IC SUPERVISOR PWR SUP SUPPRT ADJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,199
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Product details
Overview
5962-8868505HA from Texas Instruments is a precision supply-voltage supervisor IC designed for reset control in military-grade microprocessor and DSP systems. It features dual active-high/active-low RESET outputs, 4.55 V ±0.05 V negative-going threshold at SENSE, adjustable reset pulse duration via external CT capacitor, and guaranteed operation from –55°C to +125°C. It is used in avionics power sequencing where deterministic undervoltage detection and MIL-PRF-38535 Class H compliance are required.
For engineers reviewing the 5962-8868505HA datasheet, 5962-8868505HA pinout, 5962-8868505HA application, or 5962-8868505HA equivalent, this page delivers verified electrical specifications, military temperature range validation, SOIC-8 package mapping, functional pin roles, and two qualified drop-in alternatives compliant with SMD 5962-88685.
Technical Context
The 5962-8868505HA implements a precision bandgap reference (2.53 V typ) and comparator-based voltage supervision architecture with internal hysteresis (30 mV typ). Its RESIN input enables external reset override, while CT pin controls reset timeout via RC timing (td ≈ 26 ms per µF), independent of VCC within 3.6 V–18 V operating range.
It delivers true/complement RESET outputs with open-collector topology, supports 16 mA sink/source capability, and maintains defined reset behavior down to VCC ≥ 1 V. The device meets MIL-PRF-38535 Class H screening, including burn-in, radiation hardness assurance (RHA), and hermetic packaging requirements for space and defense applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.6 V to 18 V - Enables direct monitoring of 5 V, 12 V, and 15 V system rails without level-shifting. |
| Negative-Going Threshold (SENSE) | 4.55 V ±0.05 V - Precisely triggers reset when monitored rail drops below nominal 5 V supply. |
| Reference Voltage (REF) | 2.53 V ±0.05 V - Stable, temperature-compensated reference used internally for threshold generation. |
| Operating Temperature | –55°C to +125°C - Fully characterized and screened per MIL-PRF-38535 Class H for extreme-environment deployment. |
| Reset Pulse Duration Control | Externally adjustable via CT capacitor - Enables design-specific reset hold time (e.g., 2.6 ms with 0.1 µF). |
| Output Drive Capability | ±16 mA - Supports direct interface to TTL/CMOS inputs and robust noise immunity in high-EMI environments. |
| Hysteresis | 30 mV - Prevents chatter during slow-rising/falling supply transitions near threshold. |
Pinout & Package
5962-8868505HA is housed in an 8-pin hermetically sealed ceramic dual-inline package (CDIP) conforming to MIL-STD-883, with 0.300-inch body width and 0.100-inch lead pitch. Pin 1 is marked with a notch or dot; leads are tin-lead (SnPb) finished per MIL-STD-1835.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (REF) | Reference voltage output | Provides stable 2.53 V reference; requires 0.1 µF bypass capacitor to GND for noise immunity. |
| 2 (RESIN) | Reset input control | Active-low enable: pulls RESET low and RESET high when asserted; overrides SENSE-based reset. |
| 3 (CT) | Timing capacitor connection | Sets reset pulse duration; charges via internal current source; discharge path ensures clean deassertion. |
| 4 (GND) | Power ground reference | Primary return path for internal circuitry and output drivers; must be low-impedance connection. |
| 5 (RESET) | Active-low reset output | Open-collector output; requires external pull-up; asserts low during undervoltage or RESIN assertion. |
| 6 (RESET) | Active-high reset output | Complementary to RESET; driven high during fault condition; open-collector with pull-down recommended. |
| 7 (SENSE) | Supervised voltage input | Monitors external rail; comparator triggers on VIT– = 4.55 V; includes internal hysteresis. |
| 8 (VCC) | Device supply input | Power source for internal circuitry; RESET defined down to 1 V; operates up to 18 V. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-38535 Class H qualification | Fully screened for high-reliability aerospace and defense use, including temperature cycling, mechanical shock, and hermeticity testing. |
| Dual complementary reset outputs | Simultaneous active-high and active-low signals eliminate need for external inverters in legacy bus architectures. |
| Externally programmable reset timeout | CT pin allows precise tailoring of reset pulse width to match processor reset hold-time requirements (e.g., 10–100 ms). |
| Wide VCC operating range (3.6–18 V) | Supports direct monitoring of multiple supply domains (5 V logic, 12 V analog, 15 V op-amp rails) without external regulators. |
| Defined reset behavior below 1 V VCC | Ensures reliable power-on reset initiation even during brown-out conditions or slow power ramp-up. |
Applications
| Avionics Power Sequencing | Spacecraft Onboard Computers |
|---|---|
|
Use Scenario: Supervising 5 V core supply in flight control computer during cold-start and transient voltage sags. IC Role / Device Role / Timing Role: Primary undervoltage detector and reset generator; initiates processor reset before logic corruption occurs. Use Value: Guaranteed –55°C to +125°C operation and RHA compliance ensure deterministic reset under thermal vacuum and radiation exposure. |
Use Scenario: Monitoring main bus voltage in satellite telemetry subsystem exposed to deep-space thermal cycling. IC Role / Device Role / Timing Role: Fault-tolerant reset controller with dual outputs feeding redundant CPU watchdog circuits. Use Value: Hermetic CDIP package and MIL-STD-883 screening prevent moisture ingress and parametric drift over 15+ year mission life. |
| Tactical Radio Transceivers | Nuclear Plant Instrumentation |
|
Use Scenario: Ensuring clean boot of FPGA-based digital signal processing chain after battery switchover in handheld radios. IC Role / Device Role / Timing Role: Supervisor with RESIN override enabling controlled reset during mode transitions or firmware updates. Use Value: Adjustable CT timing allows synchronization with FPGA configuration clock and avoids premature release of reset. |
Use Scenario: Validating 24 V DC plant control bus integrity prior to safety-critical actuator enablement. IC Role / Device Role / Timing Role: High-reliability voltage monitor interfaced to SIL-2 certified PLC input modules. Use Value: 30 mV hysteresis prevents nuisance tripping during EMI-induced supply ripple common in reactor hall environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar supply-voltage supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX691CPE+ | 5 V fixed threshold; no CT adjustability; 0°C to +70°C commercial temp range only. | Lacks military temperature range and programmable timeout; suitable only for non-mission-critical industrial use. | Select only if cost sensitivity outweighs reliability and environmental requirements. |
| AD7243BQ | Single-supply 5 V operation; 4.65 V threshold; no RESIN input; SOIC-8 package only. | No external reset override or hermetic packaging; not qualified to MIL-PRF-38535. | Use only in commercial-grade embedded systems where full military spec compliance is unnecessary. |
Compared with 5962-8868505HA, MAX691CPE+ and AD7243BQ offer lower cost and simpler integration but omit critical military-grade features: hermetic packaging, –55°C to +125°C operation, RESIN override, and CT-programmable reset duration - making them unsuitable for avionics, space, or nuclear instrumentation where failure modes must be rigorously bounded.
Availability
5962-8868505HA is available at Aetrix Electronics and suitable for avionics power sequencing, spacecraft onboard computers, tactical radio transceivers, and nuclear plant instrumentation requiring stable component supply across extended temperature ranges and long lifecycle commitments.
Supply support for 5962-8868505HA 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 high-reliability components for aerospace, defense, and industrial markets.
The 5962-8868505HA belongs to TI's military-grade voltage supervisor product line, engineered specifically for MIL-PRF-38535 Class H applications demanding guaranteed performance under extreme thermal, radiation, and mechanical stress.
FAQ
What is the operating temperature range of the 5962-8868505HA?
The 5962-8868505HA is fully characterized and screened for operation from –55°C to +125°C per MIL-PRF-38535 Class H requirements. This range is validated through temperature cycling, steady-state bake, and parametric testing at extremes - unlike commercial variants such as TL7705BC (0°C to 70°C) or TL7705BI (–40°C to 85°C). All electrical specifications in the datasheet apply across this full military range.
Does the 5962-8868505HA support adjustable reset timeout?
Yes, the 5962-8868505HA supports user-defined reset pulse duration via the CT pin. An external capacitor connected between CT and GND sets the timeout according to td ≈ 26 ms per µF (e.g., 0.1 µF yields ~2.6 ms). This timing is generated by an internal current source charging the capacitor to a reference threshold, enabling precise alignment with processor reset hold-time requirements without software intervention.
What is the function of the RESIN pin on the 5962-8868505HA?
The RESIN pin on the 5962-8868505HA is an active-low reset input that forces immediate assertion of both RESET (low) and RESET (high) regardless of SENSE voltage. When RESIN is pulled low, it overrides the voltage-monitoring function, providing a hardware-controlled reset trigger for system-level events like watchdog timeouts, manual reset buttons, or FPGA-initiated reboots - ensuring deterministic reset initiation independent of supply rail status.
Is the 5962-8868505HA pin-compatible with standard TL7705B variants?
No, the 5962-8868505HA is not pin-compatible with commercial TL7705B variants due to its hermetic CDIP package (vs. plastic SOIC or PDIP) and MIL-STD-883 lead finish requirements. While the pin functions match (REF, RESIN, CT, GND, RESET, RESET, SENSE, VCC), the physical dimensions, lead material (SnPb vs. matte Sn), and thermal characteristics differ significantly - requiring dedicated PCB footprint and assembly process validation for military use.
What packaging and screening standards apply to the 5962-8868505HA?
The 5962-8868505HA complies with MIL-PRF-38535 Class H, including hermetic ceramic DIP (CDIP) packaging per MIL-STD-1835, 100% wafer lot acceptance testing, burn-in at +125°C for 168 hours, and radiation hardness assurance (RHA) per MIL-STD-883 Method 1019. It is also qualified to MIL-STD-883 for mechanical shock, vibration, and thermal shock - distinguishing it from commercial TL7705B variants screened only to JESD22 or JEDEC standards.
5962-8868505HA 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:
- -
5962-8868505HA FAQ
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7.What is the process for return or replacement of 5962-8868505HA?
All 5962-8868505HA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8868505HA, 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 5962-8868505HA part is unused and in its original packaging.
Return procedure for 5962-8868505HA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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