Overview
The STM1061N21WX6F 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 STM1061N21WX6F is particularly suited 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 |
|---|---|---|---|
| Voltage Thresholds (VTH–) | Detect Voltage | 2.1V (for STM1061N21WX6F) | V |
| Voltage Threshold Accuracy | ±2% | - | - |
| Operating Voltage (VCC) | 0.7 to 6.0V | V | |
| Supply Current (ICC) | 0.9µA (typ) at VCC = 3.0V | µA | |
| Output Type | Open Drain Active-Low | - | - |
| Operating Temperature | –40 to 85°C | °C | |
| Package | SOT23-3, SOT323-3 (SC70-3) | - | - |
| Power Dissipation | 320 mW | mW |
Key Features
- Precision Voltage Reference and Comparator: Monitors the VCC input and compares it with a specified voltage threshold condition.
- Low Power Consumption: Typical supply current of 0.9µA at VCC = 3.0V.
- Open Drain Output: Active-low output that can be connected to different power supply voltages and supports wired OR connections.
- Transient Immunity: Designed to ignore fast transients on VCC and includes voltage hysteresis (VHYST) for stability.
- Compact Packaging: Available in space-saving SOT23-3 and SOT323-3 (SC70-3) packages.
- Wide Operating Temperature Range: From –40 to 85°C.
Applications
- Portable Devices: Ideal for battery-powered devices due to its low power consumption.
- Power Supply Monitoring: Monitors power-supply and regulated system voltages.
- Embedded Systems: Suitable for use in various embedded systems requiring voltage monitoring.
- Consumer Electronics: Can be used in consumer electronics to ensure stable voltage levels.
Q & A
- What is the primary function of the STM1061N21WX6F?
The primary function is to monitor battery, power-supply, and regulated system voltages.
- What is the typical supply current of the STM1061N21WX6F?
The typical supply current is 0.9µA at VCC = 3.0V.
- What type of output does the STM1061N21WX6F have?
The output is an open drain active-low output.
- How does the STM1061N21WX6F handle voltage transients?
The device is designed to ignore fast transients on VCC and includes voltage hysteresis for stability.
- What are the available package options for the STM1061N21WX6F?
The device is available in SOT23-3 and SOT323-3 (SC70-3) packages.
- What is the operating temperature range of the STM1061N21WX6F?
The operating temperature range is from –40 to 85°C.
- How does the output behave when VCC falls below the threshold voltage?
The output (OUT) is forced low and remains asserted as long as VCC is below the threshold plus hysteresis.
- Can the STM1061N21WX6F be used in parallel with other open drain outputs?
- What is the maximum power dissipation of the STM1061N21WX6F?
The maximum power dissipation is 320 mW.
- Is the STM1061N21WX6F RoHS compliant?
