Overview
The STM1061N22WX6F 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 as long as the VCC input remains below the threshold plus hysteresis. The STM1061 is guaranteed to output the correct logic state for VCC down to 0.7V and is immune to fast transients on VCC. This small device is ideal for portable applications and is available in space-saving 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 | 0.9 | µA |
| VTH– Detect Voltage | Factory-trimmed Voltage Thresholds | 1.6 to 5.5V in 0.1V increments | V |
| Voltage Threshold Accuracy | Accuracy of Voltage Thresholds | ±2% | % |
| OUT Assertion Voltage | Guaranteed OUT Assertion Down to | 0.7V | V |
| Operating Temperature | Operating Temperature Range | –40 to 85°C | °C |
| Output Type | Type of Output | Open Drain Active-Low Output | |
| 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.
- Operating Voltage 0.7 to 6.0V: Flexible operating voltage range.
- ±2% Voltage Threshold Accuracy: High accuracy in voltage detection.
- Low Supply Current of 0.9µA (typ): Low power consumption ideal for portable applications.
- Available in SOT23-3 and SOT323-3 (SC70-3) packages: Space-saving packages suitable for compact designs.
- Open Drain Output: Allows for wired OR connections and flexibility in output configuration.
Applications
The STM1061N22WX6F is suitable for a variety of applications, including:
- Communications Equipment: Monitors power supply voltages in communication devices.
- Computers and Peripherals: Ensures reliable power monitoring in computer systems and peripherals.
- Industrial Applications: Used in industrial settings for monitoring regulated system voltages.
- Portable Applications: Ideal for battery-powered devices due to its low power consumption and small package size.
Q & A
- What is the primary function of the STM1061N22WX6F?
The primary function of the STM1061N22WX6F is to monitor battery, power-supply, and regulated system voltages.
- What are the available package options for the STM1061N22WX6F?
The device is available in SOT23-3 and SOT323-3 (SC70-3) packages.
- What is the operating voltage range of the STM1061N22WX6F?
The operating voltage range is from 0.7V to 6.0V.
- How accurate are the voltage thresholds of the STM1061N22WX6F?
The voltage thresholds have an accuracy of ±2%.
- What is the typical supply current of the STM1061N22WX6F?
The typical supply current is 0.9µA at VCC = 3.0V.
- Is the STM1061N22WX6F immune to power supply transients?
Yes, the device is designed to ignore fast transients on VCC.
- What is the guaranteed OUT assertion voltage of the STM1061N22WX6F?
The OUT assertion is guaranteed down to VCC = 0.7V.
- What is the operating temperature range of the STM1061N22WX6F?
The operating temperature range is from –40°C to 85°C.
- What type of output does the STM1061N22WX6F have?
The device has an open drain active-low output.
- Why is the STM1061N22WX6F suitable for portable applications?
It is suitable due to its low power consumption and small package size.
