Overview
The STM1001LWX6F is a low-power supervisory device produced by STMicroelectronics, designed to monitor power supplies and assert a reset signal when the supply voltage drops below a preset threshold. This microprocessor reset circuit is essential for ensuring the stable operation of microcontrollers and other digital systems. It operates within a temperature range of -40°C to 85°C, making it suitable for industrial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature | -40 to 85 | °C |
| Supply Voltage Monitoring | 3 V, 3.3 V, 5 V | V |
| Reset Pulse Width | 30 ms or 140 ms (min) | ms |
| Supply Current | 6 µA (typ) | µA |
| RST Output | Open drain | |
| Package | SOT23-3 | |
| RoHS Compliance | Ecopack3 |
Key Features
- Lead-free, small SOT23 package
- Precision monitoring of 3 V, 3.3 V, and 5 V supply voltages
- Open drain RST output
- 30 ms or 140 ms reset pulse width (min)
- Low supply current - 6 µA (typ)
- Guaranteed RST assertion down to VCC = 1.0 V
- Operating temperature range: -40°C to 85°C (industrial grade)
Applications
The STM1001LWX6F is recommended for various industrial applications where reliable power supply monitoring is crucial. It is particularly useful in systems that require precise reset functionality to ensure proper operation during power-up and power-down sequences. This includes but is not limited to microcontroller-based systems, embedded systems, and other digital circuits that require stable power supply conditions.
Q & A
- What is the primary function of the STM1001LWX6F?
The primary function is to monitor the power supply and assert a reset signal when the supply voltage drops below a preset threshold. - What are the supported supply voltages for the STM1001LWX6F?
The device supports precision monitoring of 3 V, 3.3 V, and 5 V supply voltages. - What is the typical supply current of the STM1001LWX6F?
The typical supply current is 6 µA. - What is the operating temperature range of the STM1001LWX6F?
The operating temperature range is -40°C to 85°C. - What type of package does the STM1001LWX6F come in?
The device comes in a lead-free, small SOT23-3 package. - Is the RST output of the STM1001LWX6F open drain?
Yes, the RST output is an open drain. - What are the minimum reset pulse widths available for the STM1001LWX6F?
The minimum reset pulse widths are 30 ms or 140 ms. - Is the STM1001LWX6F RoHS compliant?
Yes, the device is RoHS compliant with an Ecopack3 rating. - How does the STM1001LWX6F handle negative-going VCC transients?
The device is relatively immune to negative-going VCC transients and includes transient immunity features. - What is the maximum power dissipation of the STM1001LWX6F?
The maximum power dissipation is 320 mW.
