Texas Instruments TPS3800G27DCKRG4

Overview

TPS3800G27DCKRG4 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. It monitors supply rails in DSP/microcontroller systems to ensure reliable power-on initialization and brownout protection.

For engineers reviewing the TPS3800G27DCKRG4 datasheet, TPS3800G27DCKRG4 pinout, TPS3800G27DCKRG4 application, or TPS3800G27DCKRG4 equivalent, key selection criteria include threshold accuracy (±2.5%), ultra-low quiescent current (12 µA typ), MR functionality, SC-70 footprint compatibility, and industrial temperature range support.

Technical Context

The TPS3800G27DCKRG4 uses an internal precision reference (1.14 V) and resistor divider to set a factory-trimmed 2.5 V SENSE threshold with ±2.5% total accuracy over –40°C to +85°C. Its reset logic asserts a push-pull RESET signal when VDD falls below 2.45 V (min) and holds it active for 95 ms (typ) after VDD rises above 2.55 V (max).

A dedicated MR input allows external system-level reset initiation; a low pulse on MR forces RESET active regardless of VDD level. The device draws only 12 µA typical supply current at 4 V and supports VDD operation from 1.6 V to 6 V, enabling use across 1.8 V–5 V logic domains.

Key Specifications

Pinout & Package

TPS3800G27DCKRG4 is housed in a 5-pin SC-70 (DCK) package measuring 2.15 mm × 1.40 mm × 1.10 mm max height, optimized for space-constrained PCB layouts. 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 TPS3800G27DCKRG4, TPS3801J25DCKR offers tighter threshold tolerance but doubles reset delay, while TPS3802L30DCKR shifts trip point upward and extends delay nearly fourfold - both require explicit validation of timing and voltage alignment in the target design.

Availability

TPS3800G27DCKRG4 is available at Aetrix Electronics and suitable for industrial PLCs, portable medical monitors, automotive infotainment head units, wireless sensor nodes, and notebook/desktop computing systems requiring stable component supply and long-term lifecycle support.

Supply support for TPS3800G27DCKRG4 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 experience in power management and system supervision ICs.

The TPS380x family was designed specifically for reliable power-on reset and brownout detection in DSP, microcontroller, and microprocessor-based systems - emphasizing small size, low power, and factory-trimmed accuracy.

FAQ

What is the exact reset threshold voltage of the TPS3800G27DCKRG4?

The TPS3800G27DCKRG4 has a factory-trimmed fixed threshold of 2.5 V (typical), with a guaranteed range of 2.45 V to 2.55 V over –40°C to +85°C. This value is specified under Electrical Characteristics as VIT– for the TPS380xG27 variant and reflects total accuracy including initial tolerance and temperature drift.

Does the TPS3800G27DCKRG4 include a manual reset (MR) input?

Yes, the TPS3800G27DCKRG4 includes a dedicated MR input (Pin 3) that forces the RESET output active when pulled low, independent of VDD level. This feature enables hardware-triggered resets for system recovery, watchdog timeouts, or user-initiated reboots.

What is the reset delay time for the TPS3800G27DCKRG4?

The TPS3800G27DCKRG4 provides a factory-programmed reset recovery delay of 95 ms (typical), with a min/max range of 60–140 ms. This delay begins when VDD rises above the threshold and ensures sufficient stabilization time before releasing the RESET signal to downstream logic.

What package type and dimensions does the TPS3800G27DCKRG4 use?

The TPS3800G27DCKRG4 uses the SC-70 (DCK) 5-pin package, measuring 2.15 mm × 1.40 mm × 1.10 mm maximum height. Pin 1 is located in quadrant Q3 per JEDEC-compliant tape-and-reel orientation, and the package features two GND pins for improved thermal and noise performance.

Is the RESET output of the TPS3800G27DCKRG4 push-pull or open-drain?

The RESET output of the TPS3800G27DCKRG4 is push-pull - it actively drives high and low without requiring an external pull-up resistor. This configuration reduces standby current, simplifies interface design, and ensures robust drive strength (±5 mA) into capacitive or resistive loads.