Texas Instruments TPS3800G27DCKR

Overview

TPS3800G27DCKR from Texas Instruments is a fixed-threshold voltage supervisor IC with 2.5 V detection, 95 ms reset delay, push-pull RESET output, manual reset (MR) input, and SC-70 (DCK) 5-pin package - used for reliable power-on reset supervision in microcontroller-based systems operating from 1.6 V to 6 V supply rails.

For engineers reviewing the TPS3800G27DCKR datasheet, TPS3800G27DCKR pinout, TPS3800G27DCKR application, or TPS3800G27DCKR equivalent, this page delivers verified specifications, validated pin functions, real-world use cases, and confirmed alternative parts for embedded power sequencing and DSP/microcontroller initialization design.

Technical Context

The TPS3800G27DCKR integrates a precision 2.5 V threshold comparator with ±2.5% accuracy over –40°C to +85°C, internal oscillator-based timing circuitry for factory-programmed 95 ms reset pulse width, and push-pull output stage capable of sinking 5 mA or sourcing –5 mA. It monitors VDD directly (not SENSE), eliminating external resistor dividers.

Unlike adjustable variants (e.g., TPS3801-01), this device uses fixed VDD monitoring and includes MR for external reset assertion. Its low 13–18 mA supply current and 5-pin SC-70 footprint support space-constrained battery-powered and portable applications requiring stable, low-power supervision.

Key Specifications

Pinout & Package

TPS3800G27DCKR is housed in a 5-pin SC-70 (DCK) package with exposed pad option not specified; body dimensions are 2.15 mm × 1.4 mm × 1.1 mm max height. Pin 1 is located in quadrant Q3 per tape-and-reel orientation standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS3800G27DCKR, TPS3801J25DCKR offers shorter threshold but longer delay, while TPS3802L30DCKR raises both threshold and delay - enabling fine-grained selection across 2.25–2.64 V rails and 95–380 ms timing windows without layout changes.

Availability

TPS3800G27DCKR is available at Aetrix Electronics and suitable for industrial PLC control, portable medical monitors, automotive body control modules, and wireless sensor nodes requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TPS3800G27DCKR 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 connectivity technologies, with decades of expertise in power management and system supervision ICs.

The TPS380x family was designed specifically for ultra-small, low-quiescent-current voltage supervision in space- and power-constrained digital systems - targeting DSP, microcontroller, and ASIC power sequencing applications.

FAQ

What is the exact reset threshold voltage of the TPS3800G27DCKR?

The TPS3800G27DCKR has a factory-trimmed threshold voltage of 2.5 V (typical), with guaranteed range of 2.45 V to 2.55 V over –40°C to +85°C. This fixed value applies to VDD monitoring only and does not require external resistors - ensuring consistent behavior across production units without calibration.

Does the TPS3800G27DCKR include a manual reset (MR) input?

Yes, the TPS3800G27DCKR includes an active-low manual reset (MR) input on pin 3. Pulling MR low forces the RESET output active regardless of VDD level, enabling hardware-triggered system recovery. This function is retained across all TPS380x variants except TPS3801-01.

What is the reset delay time for the TPS3800G27DCKR, and is it adjustable?

The TPS3800G27DCKR features a factory-programmed reset delay time of 95 ms (typical), with range 60–140 ms. This delay is fixed and non-adjustable - no external capacitor or resistor is required, simplifying design and improving timing predictability versus RC-based solutions.

What package type and pin count does the TPS3800G27DCKR use?

The TPS3800G27DCKR uses the SC-70 (DCK) package with 5 pins. Physical dimensions are 2.15 mm × 1.4 mm × 1.1 mm max height. Pin 1 is located in quadrant Q3 per JEDEC-compliant tape-and-reel orientation, and dual GND pins (pins 2 and 5) enhance noise immunity.

Can the TPS3800G27DCKR monitor a separate SENSE input, or only VDD?

The TPS3800G27DCKR monitors VDD directly and does not support a separate SENSE input. It belongs to the fixed-threshold "TPS3800" subfamily (as opposed to adjustable "TPS3801-01" or SENSE-capable "TPS3801E18"), meaning its 2.5 V threshold is applied to the VDD pin itself - eliminating external divider networks and reducing component count.