Overview
The STM1061N29WX6F is a low power voltage detector produced by STMicroelectronics. This device is designed to monitor battery, power-supply, and regulated system voltages. It features a precision voltage reference and comparator that compares the VCC input with a specified voltage threshold condition. When the VCC input falls below the specified trip point threshold, the output (OUT) is forced low and remains asserted until the VCC input rises above the threshold plus hysteresis. The STM1061 is guaranteed to output the correct logic state even when VCC drops down to 0.7V and is immune to fast transients on VCC. This device is ideal for portable applications due to its low power consumption and compact packaging in SOT23-3 and SOT323-3 (SC70-3) packages.
Key Specifications
| Parameter | Description | Value | Unit |
|---|---|---|---|
| VCC Operating Voltage | Supply voltage range | 0.7 to 6.0 | V |
| ICC Supply Current | Typical supply current at VCC = 3.0V, no load | 0.9 | µA |
| VTH– Detect Voltage | Factory-trimmed voltage thresholds in 0.1V increments from 1.6 to 5.5V | 1.6 to 5.5 | V |
| Voltage Threshold Accuracy | Accuracy of the voltage threshold | ±2% | |
| Operating Temperature | Operating temperature range | –40 to 85 | °C |
| Output Type | Type of output | Open Drain, Active-Low | |
| Package Options | Available packages | SOT23-3, SOT323-3 (SC70-3) |
Key Features
- Power Supply Transient Immunity: Designed to ignore fast transients on VCC.
- Guaranteed OUT Assertion Down to VCC=0.7V: Ensures correct logic state even at low VCC levels.
- Operating Temperature –40 to 85°C: Wide operating temperature range.
- Factory-trimmed Voltage Thresholds in 0.1V Increments from 1.6 to 5.5V: Precise voltage monitoring.
- Low Supply Current of 0.9µA (typ): Low power consumption suitable for portable applications.
- Available in SOT23-3 and SOT323-3 (SC70-3) packages: Compact and space-saving packaging.
- Open Drain Output: Allows for wired OR connections and connection to different power supply voltages.
Applications
The STM1061N29WX6F is particularly suited for portable and battery-powered devices due to its low power consumption and compact size. It is ideal for monitoring system voltages in a variety of applications, including:
- Portable electronics such as smartphones, tablets, and laptops.
- Battery-powered devices like wearables and IoT devices.
- Automotive systems requiring voltage monitoring.
- Industrial control systems and automation.
Q & A
- What is the primary function of the STM1061N29WX6F?
The primary function is to monitor battery, power-supply, and regulated system voltages and assert an output signal when the voltage falls below a specified threshold.
- What is the operating voltage range of the STM1061N29WX6F?
The operating voltage range is from 0.7V to 6.0V.
- What is the typical supply current of the STM1061N29WX6F?
The typical supply current is 0.9µA at VCC = 3.0V with no load.
- What are the available package options for the STM1061N29WX6F?
The device is available in SOT23-3 and SOT323-3 (SC70-3) packages.
- How accurate are the voltage thresholds of the STM1061N29WX6F?
The voltage thresholds have an accuracy of ±2%.
- What is the operating temperature range of the STM1061N29WX6F?
The operating temperature range is from –40°C to 85°C.
- What type of output does the STM1061N29WX6F have?
The output is an open drain, active-low output.
- How does the STM1061N29WX6F handle fast transients on VCC?
The device is designed to ignore fast transients on VCC.
- What is the minimum VCC level at which the STM1061N29WX6F guarantees correct output logic?
The device guarantees correct output logic down to VCC = 0.7V.
- Can multiple STM1061N29WX6F outputs be connected in parallel?
Yes, the open drain outputs can be connected in parallel (wired OR connections).
