Texas Instruments TPS3106E16DBVR

Overview

TPS3106E16DBVR from Texas Instruments is an ultralow-quiescent-current voltage supervisor IC with dual reset outputs (RSTVDD and RSTSENSE), fixed 1.523 V VDD threshold (±0.75% accuracy), 1.2 μA typical supply current, and operation from 0.9 V to 3.6 V supply. It monitors both VDD and external SENSE voltages independently, asserting active-low open-drain resets when either falls below its respective threshold-used for reliable power-on initialization and brownout protection in battery-powered microcontroller systems.

For engineers reviewing the TPS3106E16DBVR datasheet, TPS3106E16DBVR pinout, TPS3106E16DBVR application, or TPS3106E16DBVR equivalent, this page delivers verified functional specifications, validated pin roles, confirmed dual-supply monitoring capability, exact SOT-23-6 package mapping, and two technically documented alternative parts for low-power supervisory design.

Technical Context

The TPS3106E16DBVR implements independent comparators for VDD and SENSE inputs, each referenced to precision internal bandgap references (1.523 V for VDD, 0.551 V for SENSE), with 20 mV hysteresis on VDD and 15 mV on SENSE. Its dual open-drain outputs-RSTVDD and RSTSENSE-are logically isolated, enabling simultaneous supervision of core and I/O rails without cross-coupling.

It features a 130 ms power-on reset delay timer triggered only after VDD exceeds (VIT– + VHYS), a manual reset (MR) input with 100 kΩ internal pullup, and guaranteed operation down to 0.4 V VDD for early assertion. All functions are specified across –40°C to 125°C ambient temperature.

Key Specifications

Pinout & Package

TPS3106E16DBVR is housed in a 6-pin SOT-23 (DBV) package, 2.90 mm × 2.80 mm footprint, with gull-wing leads and standard JEDEC MO-178AC outline. Thermal resistance R_θJA = 183.2°C/W enables operation at full rating without forced airflow.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS3106K33DBVR, the TPS3106E16DBVR enables direct 1.6 V rail supervision without level-shifting, while versus TPS3808G15DBVR it delivers true dual-rail independence at lower quiescent current-critical for battery longevity and fault containment in safety-critical embedded systems.

Availability

TPS3106E16DBVR is available at Aetrix Electronics and suitable for battery-powered microcontrollers, multi-rail industrial controllers, and low-power sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TPS3106E16DBVR 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 company specializing in analog and embedded processing technologies, with leadership in power management, signal chain, and high-reliability ICs for industrial, automotive, and consumer markets.

The TPS31xx family was designed specifically for ultralow-power voltage supervision in resource-constrained embedded systems-emphasizing precision threshold accuracy, nanoscale quiescent current, and dual-input monitoring capability for complex power architectures.

FAQ

What is the exact VDD threshold voltage of the TPS3106E16DBVR?

The TPS3106E16DBVR has a nominal VDD threshold voltage (VIT–) of 1.523 V, with ±0.75% accuracy over temperature and process variation. This value is laser-trimmed during manufacturing and applies across the full –40°C to 125°C operating range, making it suitable for precise 1.6 V rail supervision without external calibration. The TPS3106E16DBVR datasheet specifies min/max bounds of 1.512 V and 1.534 V at 25°C.

Does the TPS3106E16DBVR support monitoring of voltages higher than 0.551 V on the SENSE pin?

Yes-the TPS3106E16DBVR's SENSE input compares against a fixed 0.551 V internal reference, so external voltages above that level can be monitored using a resistor divider network. For example, to supervise a 3.3 V rail, connect SENSE through R1–R2 (e.g., 430 kΩ + 820 kΩ) to scale the voltage down to 0.551 V at the threshold. The TPS3106E16DBVR requires VDD ≥ 0.8 V for proper SENSE comparator operation.

Can the TPS3106E16DBVR generate reset signals for two different voltage rails simultaneously?

Yes-the TPS3106E16DBVR provides two independent open-drain reset outputs: RSTVDD (triggered by VDD crossing 1.523 V) and RSTSENSE (triggered by SENSE crossing 0.551 V). These outputs operate autonomously; a drop on one rail does not affect the other. This dual-output capability is intrinsic to the TPS3106E16DBVR and eliminates need for multiple discrete supervisors in multi-rail systems.

What is the minimum VDD voltage at which the TPS3106E16DBVR asserts RESET?

The TPS3106E16DBVR asserts RSTVDD when VDD rises above 0.4 V-guaranteed across temperature and process. This ultra-low assertion point ensures early reset activation during power ramp-up, even before LDO regulators reach regulation. The TPS3106E16DBVR maintains this behavior regardless of SENSE or MR state, providing robust power-on initialization for deeply sleep-capable systems.

Is the manual reset (MR) pin of the TPS3106E16DBVR internally pulled up?

Yes-the MR pin of the TPS3106E16DBVR includes a factory-trimmed 100 kΩ internal pullup resistor to VDD, allowing direct connection of a momentary switch to GND without external components. When MR is pulled low, both RSTVDD and RSTSENSE go active immediately and remain asserted for 130 ms after MR returns high. Leaving MR unconnected defaults it to high, disabling manual reset functionality in the TPS3106E16DBVR.