Overview
The STM1061N19WX6F is a low power voltage detector produced by STMicroelectronics. This device is designed to monitor battery, power-supply, and regulated system voltages. It utilizes a precision voltage reference and comparator to compare 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 STM1061N19WX6F is guaranteed to output the correct logic state even when VCC is as low as 0.7V and is immune to fast transients on VCC. This device is ideal for portable applications due to its low power consumption and is available in space-saving SOT23-3 and SOT323-3 (SC70-3) packages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC Operating Voltage | 0.7 to 6.0 | V |
| ICC Supply Current (VCC = 3.0V, No Load) | 0.9 | µA |
| ICC Supply Current (VCC = 5.5V, No Load) | 1.1 | µA |
| VTH– Detect Voltage | 1.6 to 5.5 (in 0.1V increments) | V |
| Voltage Threshold Accuracy | ±2% | % |
| Output Type | Open Drain Active-Low | |
| Operating Temperature | –40 to 85 | °C |
| Package Types | SOT23-3, SOT323-3 (SC70-3) |
Key Features
- Factory-trimmed voltage thresholds in 0.1V increments from 1.6 to 5.5V.
- ±2% voltage threshold accuracy.
- Low supply current of 0.9µA (typ) at VCC = 3.0V and 1.1µA (typ) at VCC = 5.5V.
- Guaranteed OUT assertion down to VCC = 0.7V.
- Power supply transient immunity.
- Open drain output allowing for wired OR connections and connection to different supply voltages.
- Available in SOT23-3 and SOT323-3 (SC70-3) packages).
Applications
The STM1061N19WX6F is particularly suited for portable applications due to its low power consumption and small package size. It can be used in various systems that require monitoring of battery, power-supply, and regulated system voltages. Examples include handheld devices, battery-powered equipment, and other low-power electronic systems where voltage monitoring is critical).
Q & A
- What is the primary function of the STM1061N19WX6F?
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 are the available voltage thresholds for the STM1061N19WX6F?
The voltage thresholds are available in 0.1V increments from 1.6 to 5.5V).
- What is the typical supply current of the STM1061N19WX6F?
The typical supply current is 0.9µA at VCC = 3.0V and 1.1µA at VCC = 5.5V).
- What type of output does the STM1061N19WX6F have?
The output is an open drain active-low output).
- How does the STM1061N19WX6F handle power supply transients?
The device is designed to ignore fast transients on VCC, providing transient immunity).
- What are the operating temperature ranges for the STM1061N19WX6F?
The operating temperature range is from –40 to 85°C).
- In what packages is the STM1061N19WX6F available?
The device is available in SOT23-3 and SOT323-3 (SC70-3) packages).
- What is the minimum VCC voltage at which the STM1061N19WX6F can assert the correct logic state?
The device can assert the correct logic state down to VCC = 0.7V).
- How can multiple STM1061N19WX6F devices be connected?
Multiple devices can be connected in wired OR configurations using the open drain outputs).
- What is the purpose of the pull-up resistor in the STM1061N19WX6F circuit?
The pull-up resistor is used to register a logic low and high state for the output signal, typically a 10kΩ resistor is sufficient).
