Texas Instruments TPS3836J25MDBVTEP

Overview

TPS3836J25MDBVTEP from Texas Instruments is a nano-power supervisory circuit with 2.25 V reset threshold, active-low push-pull RESET output, 10 ms/200 ms selectable delay, 220 nA typical supply current, and operation over –55°C to 125°C - used for reliable power-on reset in radiation-tolerant aerospace and defense microcontroller systems.

For engineers reviewing the TPS3836J25MDBVTEP datasheet, TPS3836J25MDBVTEP pinout, TPS3836J25MDBVTEP application, or TPS3836J25MDBVTEP equivalent, key selection criteria include its precise 2.25 V threshold tolerance (±45 mV), CT-pin configurable delay, manual reset capability, SOT-23-5 package compatibility, and extended temperature qualification for harsh-environment embedded control.

Technical Context

The TPS3836J25MDBVTEP integrates a precision band-gap reference, internal voltage divider for fixed 2.25 V threshold detection, and a refresh timer that initiates after VDD exceeds VIT. Its reset assertion logic ensures stable initialization before processor release.

Delay timing is determined by the CT pin: grounded for 10 ms typical delay, tied to VDD for 200 ms typical delay. The active-low push-pull RESET output drives directly into MCU reset inputs without external pull-up, supporting immediate system recovery on undervoltage or manual reset events.

Key Specifications

Pinout & Package

TPS3836J25MDBVTEP uses a 5-pin SOT-23 (DBV) package with 1.45 mm max height, JEDEC MO-178 compliant footprint, and lead-free NIPDAU finish rated MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar supervisory circuit applications.

Compared with TPS3836J25MDBVTEP, TPS3836L30MDBVREP shifts threshold upward for 3.0 V systems, while TPS3837J25MDBVREP inverts reset polarity - both retain identical nano-power consumption, temperature range, and delay configurability, making them drop-in replacements for voltage- or interface-matched redesigns.

Availability

TPS3836J25MDBVTEP is available at Aetrix Electronics and suitable for aerospace avionics, downhole telemetry, and spacecraft onboard computers requiring stable component supply across extended temperature and long product lifecycles.

Supply support for TPS3836J25MDBVTEP 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 industrial, automotive, and defense markets.

The TPS3836-EP family was designed specifically for extended-temperature, high-reliability power supervision in mission-critical aerospace, defense, and medical electronics - emphasizing nano-power operation, precision threshold stability, and controlled baseline manufacturing.

FAQ

What is the exact reset threshold voltage of the TPS3836J25MDBVTEP?

The TPS3836J25MDBVTEP has a nominal reset threshold voltage of 2.25 V, with a specified tolerance of ±45 mV at TA = 25°C and ±90 mV across the full –55°C to 125°C operating range. This value is factory-trimmed and does not require external calibration. The TPS3836J25MDBVTEP maintains this precision via an internal band-gap reference and fixed resistor divider, ensuring consistent brownout detection in 2.5 V rail applications.

How is the reset delay time configured on the TPS3836J25MDBVTEP?

The reset delay time of the TPS3836J25MDBVTEP is selected by the CT pin: connecting CT to GND yields a typical 10 ms delay, while connecting CT to VDD yields a typical 200 ms delay. No external capacitor is needed. This hardware-selectable timing eliminates firmware dependencies and ensures deterministic reset duration during power-up or brownout recovery - a key feature of the TPS3836J25MDBVTEP for safety-critical systems.

Does the TPS3836J25MDBVTEP support manual reset functionality?

Yes, the TPS3836J25MDBVTEP includes a dedicated MR (Manual Reset) input pin (Pin 3) that provides asynchronous active-low reset triggering. It features an internal 33 kΩ pull-up resistor, so the pin can be left floating or tied to VDD if unused. When asserted, MR forces RESET low regardless of VDD level - a critical capability for field service, diagnostics, or emergency recovery in systems using the TPS3836J25MDBVTEP.

What package type and footprint does the TPS3836J25MDBVTEP use?

The TPS3836J25MDBVTEP uses a 5-pin SOT-23 (DBV) package with JEDEC MO-178 compliance, 1.45 mm maximum height, and a 0.95 mm pin pitch. Its land pattern requires 1.1 mm × 0.6 mm solder pads with 0.15 mm solder mask expansion. The TPS3836J25MDBVTEP is compatible with standard SMT reflow profiles (MSL Level-1, peak 260°C) and supports tape-and-reel delivery in 250-unit reels (DBVT).

Is the TPS3836J25MDBVTEP suitable for space or high-reliability applications?

Yes, the TPS3836J25MDBVTEP is an enhanced-product (EP) grade device qualified per MIL-PRF-38535 with controlled baseline, single-site fabrication and test, extended product lifecycle, and full traceability. It operates from –55°C to 125°C, meets MIL-STD-883 ESD requirements (2000 V HBM), and is used in defense, aerospace, and medical systems. These attributes make the TPS3836J25MDBVTEP appropriate for non-radiation-hardened but high-integrity space subsystems and critical infrastructure.