Texas Instruments TPS3836L30MDBVREP

Overview

TPS3836L30MDBVREP from Texas Instruments is a radiation-hardened, nano-power voltage supervisor IC for space-grade and high-reliability applications. It provides precision 2.64 V supply monitoring, 10 ms/200 ms selectable power-on reset delay, active-low push-pull RESET output, manual reset input (MR), and operates across –55°C to 125°C. Used in satellite power sequencing, radiation-tolerant microcontroller initialization, and military avionics.

For engineers reviewing the TPS3836L30MDBVREP datasheet, TPS3836L30MDBVREP pinout, TPS3836L30MDBVREP application, or TPS3836L30MDBVREP equivalent, this page delivers verified electrical parameters, exact SOT-23-5 pin mapping, functional differences among TPS3836/3837/3838 variants, and design-critical timing behavior under MR and CT control.

Technical Context

The TPS3836L30MDBVREP integrates a precision bandgap reference, internal voltage divider for fixed 2.64 V threshold (VIT), and a refresh timer that initiates reset assertion when VDD falls below VIT or rises above it with configurable delay. Its push-pull RESET output drives low actively during fault or power-up and returns high only after VDD exceeds VIT and the selected delay expires.

CT pin selection determines delay mode: grounded for 10 ms typical delay, tied to VDD for 200 ms typical delay. MR supports external manual reset with internal 33 kΩ pullup; asserting MR low forces immediate RESET activation regardless of VDD state.

Key Specifications

Pinout & Package

TPS3836L30MDBVREP is housed in a 5-pin SOT-23 (DBV) package with 1.45 mm max height, JEDEC MO-178 compliant, and RoHS-compliant NiPdAu lead finish. Pin 1 is marked by an index area; device orientation follows standard SOT-23 top-view layout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS3836L30MDBVREP, TPS3836J25MDBVTEP offers lower threshold and smaller packaging but identical functionality and timing; TPS3837K33MDBVREP differs in both threshold and output polarity, requiring schematic and firmware changes for integration.

Availability

TPS3836L30MDBVREP is available at Aetrix Electronics and suitable for aerospace power sequencing, satellite onboard computer reset, and downhole telemetry modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TPS3836L30MDBVREP 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 delivering analog, embedded processing, and high-reliability solutions for industrial, automotive, and aerospace markets.

The TPS3836 family is part of TI's Enhanced Product (EP) line, engineered specifically for defense, space, and medical applications demanding extended temperature operation, controlled manufacturing baselines, and full traceability.

FAQ

What is the exact reset threshold voltage of the TPS3836L30MDBVREP?

The TPS3836L30MDBVREP has a nominal reset threshold voltage (VIT) of 2.64 V, with a guaranteed range of 2.54 V to 2.71 V over the full –55°C to 125°C operating temperature range. This value is factory-trimmed and does not require external calibration. The TPS3836L30MDBVREP uses an internal voltage divider to set this fixed threshold, ensuring consistent performance across units and environmental conditions.

How does the CT pin affect reset timing in the TPS3836L30MDBVREP?

In the TPS3836L30MDBVREP, the CT pin selects the power-on reset delay time: connecting CT to GND configures a typical 10 ms delay, while connecting CT to VDD selects a typical 200 ms delay. No external capacitor is needed. The TPS3836L30MDBVREP's internal timer begins counting only after VDD rises above the 2.64 V threshold, ensuring accurate delay timing independent of supply ramp rate.

Is the TPS3836L30MDBVREP pin-compatible with other devices in the TPS3836/3837/3838 family?

The TPS3836L30MDBVREP shares identical SOT-23-5 pinout and package dimensions with all TPS3836, TPS3837, and TPS3838 variants, including TPS3837K33MDBVREP and TPS3838E18MDBVREP. However, output polarity differs: TPS3836L30MDBVREP has active-low push-pull RESET, while TPS3837 variants output active-high. Swapping requires logic-level adaptation in the host system.

What is the maximum supply voltage the TPS3836L30MDBVREP can tolerate?

The TPS3836L30MDBVREP supports a recommended operating supply voltage (VDD) range of 1.6 V to 6 V, with an absolute maximum rating of 7 V. Continuous operation at 7 V is limited to 1000 hours per TI specification. For reliable long-term use, VDD should remain within 1.6–6 V, especially in high-temperature environments where leakage currents increase.

Does the TPS3836L30MDBVREP require an external bypass capacitor?

Yes - the TPS3836L30MDBVREP requires a 0.1 µF ceramic bypass capacitor placed as close as possible to the VDD and GND pins. This stabilizes the internal bandgap reference and prevents false resets caused by supply transients or noise coupling. The TPS3836L30MDBVREP datasheet explicitly states this requirement to ensure threshold voltage stability and hysteresis performance across temperature.