STMicroelectronics STM1061N16WX6F

Overview

STM1061N16WX6F from STMicroelectronics is a low-power, factory-trimmed voltage detector IC with 1.6V threshold (±2%), open-drain active-low output, 0.9µA typical supply current, and guaranteed operation down to VCC = 0.7V. It monitors battery or regulated supply rails in portable electronics and embedded systems requiring precise reset assertion during undervoltage conditions.

For engineers reviewing the STM1061N16WX6F datasheet, STM1061N16WX6F pinout, STM1061N16WX6F application, or STM1061N16WX6F equivalent, this device supports critical power-on reset, brown-out detection, and system supervision where ultra-low quiescent current, transient immunity, and guaranteed sub-1V output validity are required.

Technical Context

The STM1061N16WX6F implements a precision bandgap reference and comparator architecture to detect VCC falling below 1.6V (VTH–), asserting an open-drain output that sinks up to 30mA at VCC = 5V. Hysteresis is fixed at 0.02–0.08×VTH– to prevent chatter near threshold.

It operates across –40°C to +85°C with ±100 ppm/°C threshold temperature coefficient and rejects negative-going VCC transients ≤100µs (depending on overdrive), enabled by internal noise filtering and validated timing delay specs: tPD = 25µs (detect), tPR = 30–200µs (release).

Key Specifications

Pinout & Package

SOT23-3 (WX) package: 3-pin surface-mount, 2.8mm × 2.1mm footprint, ECOPACK® lead-free, compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV803EB16DBZR and MAX809SEUR+T, the STM1061N16WX6F uniquely balances ultra-low ICC (0.9µA), guaranteed 0.7V operation, and 30mA sink capability - making it optimal for long-life battery systems needing robust reset assertion under extreme voltage stress.

Availability

STM1061N16WX6F is available at Aetrix Electronics and suitable for portable medical sensors, industrial IoT edge nodes, smart meter backup power, and automotive body control modules requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for STM1061N16WX6F 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensing solutions for industrial, automotive, and consumer markets.

The STM1061 belongs to ST's precision voltage supervisor product line, engineered specifically for ultra-low-power, high-accuracy reset generation in battery-critical and space-constrained embedded systems.

FAQ

What is the minimum VCC voltage at which STM1061N16WX6F guarantees correct output logic state?

The STM1061N16WX6F guarantees valid active-low output assertion down to VCC = 0.7V at 25°C, as specified in Section 3.1 and Table 5 of the datasheet. This ensures reliable reset signaling even during deep battery discharge or post-failure supply collapse, unlike many competitors that cease operation above 1.0V.

Can STM1061N16WX6F drive a reset line shared across multiple ICs?

Yes - its open-drain active-low output supports wired-OR configuration. The device can sink up to 30mA (at VCC = 5.0V, VDS = 0.5V), enabling direct interface to multi-load reset busses. A single pull-up resistor suffices; no level-shifting or buffering is needed, even if the reset bus runs at a different voltage than VCC.

How does STM1061N16WX6F handle fast voltage transients on the VCC line?

It incorporates inherent power supply transient immunity, rejecting negative-going VCC glitches per Figure 11. For example, a 100mV overdrive (VTH– – VCC = 100mV) tolerates transients up to ~100µs; larger overdrives reduce allowable duration. A 0.1µF bypass capacitor at VCC further enhances immunity, eliminating need for external RC filters in most designs.

Is the 1.6V threshold adjustable or user-configurable?

No - the 1.6V threshold is factory-trimmed and fixed, as confirmed in Table 9 and Section 1. This eliminates external resistor networks, reduces BOM count, and ensures ±2% accuracy without calibration. Other fixed thresholds (e.g., 2.1V, 3.4V) are available via different suffixes, but no on-board adjustment or external programming is supported.