Texas Instruments TPS3801L30DCKRG4

Overview

TPS3801L30DCKRG4 from Texas Instruments is a fixed-threshold voltage supervisor IC with 2.64 V detection, 200 ms reset delay, push-pull RESET output, and SC-70 (DCK) 5-pin package-designed for reliable power-on reset supervision in microcontroller-based embedded systems operating from 2 V to 6 V supply rails.

For engineers reviewing the TPS3801L30DCKRG4 datasheet, TPS3801L30DCKRG4 pinout, TPS3801L30DCKRG4 application, or TPS3801L30DCKRG4 equivalent, this page delivers verified electrical parameters, validated pin functions, confirmed thermal and timing behavior across –40°C to +85°C, and real-world substitution guidance aligned with TI's official family documentation.

Technical Context

The TPS3801L30DCKRG4 uses an internal precision reference (1.14 V) and resistor divider to set a factory-trimmed 2.64 V threshold with ±3% total accuracy over temperature and supply variation. Its internal oscillator drives a fixed 200 ms reset timeout after VDD rises above threshold.

This device asserts RESET low when VDD drops below 2.64 V (VIT– = 2.58 V min, 2.70 V max), maintains assertion for ≥200 ms after recovery, and features no manual reset (MR) input-distinguishing it from TPS3800/TPS3802 variants and non–"-01" members of the TPS380x family.

Key Specifications

Pinout & Package

TPS3801L30DCKRG4 is housed in a 5-pin SC-70 (DCK) package-1.85 mm × 1.35 mm footprint, 1.1 mm max height-with gull-wing leads and pin 1 located in quadrant Q3 per JEDEC tape orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS3801K33DCKR and TPS3802L30DCKR, the TPS3801L30DCKRG4 offers optimal timing and threshold alignment for 2.7 V rail supervision-enabling direct replacement in legacy 2.7 V designs without recalculating delay margins or adjusting threshold resistors.

Availability

TPS3801L30DCKRG4 is available at Aetrix Electronics and suitable for industrial control systems, medical wearables, automotive body electronics, and smart home hubs requiring stable component supply with full lifecycle support.

Supply support for TPS3801L30DCKRG4 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 connectivity solutions with emphasis on reliability, precision, and energy efficiency.

The TPS380x family was designed specifically for ultra-small, low-power supply voltage supervision in DSP, microcontroller, and microprocessor systems-prioritizing accuracy, compact packaging, and robust operation across industrial temperatures.

FAQ

What is the exact reset threshold voltage of the TPS3801L30DCKRG4?

The TPS3801L30DCKRG4 has a factory-trimmed threshold voltage of 2.64 V (typical), with guaranteed minimum and maximum values of 2.58 V and 2.70 V respectively, measured over –40°C to +85°C and 2 V to 6 V supply range. This value is fixed and does not require external components-unlike adjustable variants such as TPS3801-01.

Does the TPS3801L30DCKRG4 include a manual reset (MR) input?

No, the TPS3801L30DCKRG4 does not include a functional MR input. Pin 2 is GND, and pin 5 (SENSE) is internally tied to VDD-making it a fixed-threshold, no-MR variant. Only TPS3800-xx and TPS3802-xx devices in the family retain MR functionality; TPS3801-xx parts exclude MR except for the TPS3801-01.

What is the function of the SENSE pin on the TPS3801L30DCKRG4?

On the TPS3801L30DCKRG4, the SENSE pin (pin 5) is not actively used-it is internally connected to VDD to configure the device for fixed-threshold operation. It must be left unconnected or tied to VDD in the PCB layout; applying an external voltage will not alter the 2.64 V detection point.

Can the TPS3801L30DCKRG4 drive a microcontroller reset pin directly?

Yes, the TPS3801L30DCKRG4 features a push-pull RESET output capable of sinking 5 mA while maintaining VOL ≤ 0.4 V at 2 mA load-sufficient to directly assert the active-low reset input of most ARM Cortex-M, PIC, and MSP430 microcontrollers without an external pull-up resistor.

What package type and dimensions does the TPS3801L30DCKRG4 use?

The TPS3801L30DCKRG4 uses the SC-70 (DCK) package: 5-pin gull-wing, 1.85 mm × 1.35 mm body size, 1.1 mm maximum height, with pin 1 located in quadrant Q3 per tape-and-reel orientation. Footprint matches JEDEC MO-203 with 0.65 mm pitch and 0.33 mm lead width.