Texas Instruments 5962-8868504HA

Overview

5962-8868504HA 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 ±25 mV negative-going threshold at SENSE, adjustable reset pulse duration via external CT capacitor, and operation from –40°C to 85°C. Used in avionics power sequencing and hardened industrial controllers.

For engineers reviewing the 5962-8868504HA datasheet, 5962-8868504HA pinout, 5962-8868504HA application, or 5962-8868504HA equivalent, this page delivers verified electrical characteristics, military temperature-range validation, SOIC-8 package mapping, and real-world reset timing behavior - critical for MIL-PRF-38535 Class H qualification and high-reliability system design.

Technical Context

The 5962-8868504HA implements a precision bandgap reference (2.53 V typ) feeding a comparator with hysteresis (30 mV typ), enabling stable undervoltage detection during supply transients. Its RESIN input provides manual reset override independent of SENSE voltage level.

Reset assertion is triggered when SENSE falls below V_IT– = 4.55 V (typ), and deassertion occurs after SENSE rises above V_IT+ = 4.58 V (typ), with pulse duration set by CT capacitor (t_d ≈ 2.6 × 10⁴ × C_T). Both RESET and RESET outputs are open-collector, requiring external pullup/pulldown resistors.

Key Specifications

Pinout & Package

5962-8868504HA is housed in an 8-pin SOIC package (body size 4.90 mm × 3.91 mm), compliant with MIL-PRF-38535 Class H screening and hermetic sealing requirements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar supply-voltage supervision applications.

Compared with TL7705BIDR and MAX691CPD+, the 5962-8868504HA uniquely delivers MIL-qualified dual-reset outputs with externally programmable timing - essential for deterministic boot in safety-critical platforms where commercial alternatives lack traceability, screening, or functional completeness.

Availability

5962-8868504HA is available at Aetrix Electronics and suitable for aerospace power sequencing, hardened industrial PLCs, military radios, and avionics display units requiring stable component supply under extended temperature and reliability constraints.

Supply support for 5962-8868504HA 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 defense, aerospace, and industrial markets.

The 5962-8868504HA belongs to TI's military-grade voltage supervisor product line, engineered specifically for MIL-PRF-38535 Class H applications demanding guaranteed performance across extreme temperature, radiation, and vibration profiles.

FAQ

What is the operating temperature range certified for the 5962-8868504HA?

The 5962-8868504HA is fully characterized and screened for operation from –40°C to +85°C per MIL-PRF-38535 Class H requirements. This includes extended burn-in, temperature cycling, and parametric testing across the full range - unlike commercial TL7705B variants which share nominal specs but lack military qualification evidence. The 5962-8868504HA datasheet specifies V_IT– = 4.55 V with ±25 mV tolerance across this entire span.

Does the 5962-8868504HA require external components to function as a reset controller?

Yes, the 5962-8868504HA requires three external components for basic operation: a 0.1 µF capacitor from REF to GND for reference stability, a timing capacitor (e.g., 0.1 µF) from CT to GND to set reset pulse duration, and pullup/pulldown resistors on RESET/RESET outputs due to their open-collector architecture. TI recommends 10 kΩ resistors for both, and notes that mismatched termination can cause waveform plateauing and undefined states.

How does the RESIN pin function in the 5962-8868504HA?

The RESIN pin on the 5962-8868504HA is an active-low manual reset input. When pulled low, it forces RESET to logic low and RESET to logic high - overriding all SENSE-based supervision. When held high (≥2 V), the device reverts to automatic reset control based on SENSE voltage thresholds. This enables pushbutton resets, system-level fault recovery, or integration with other supervisory logic without modifying the 5962-8868504HA's core supervision behavior.

What is the significance of the CT pin timing equation t_d ≈ 2.6 × 10⁴ × C_T for the 5962-8868504HA?

This equation defines the reset pulse duration (t_d) in seconds based on the external CT capacitor value in farads. For example, a 0.1 µF capacitor yields ~2.6 ms hold time - sufficient for most microcontroller and FPGA initialization sequences. The 5962-8868504HA's internal current source charges CT until it reaches a reference voltage; variation in the current source (±15%) and reference (±5%) means actual t_d has ~20% tolerance, confirmed in TI's switching characteristics table.

Can the 5962-8868504HA supervise voltages other than 5 V?

Yes - the 5962-8868504HA's SENSE input monitors any DC voltage up to 18 V, but its fixed 4.55 V threshold makes it optimized for 5 V rail supervision. To supervise other rails (e.g., 3.3 V or 12 V), external resistor dividers must scale the target voltage to match the 4.55 V trip point. The device's high-impedance SENSE input (I_I < –2 µA) minimizes loading error, and hysteresis (30 mV) prevents chatter during slow transitions.