St MicroElectronics STM1001 Voltage Monitor & Reset Circuit SOT-23-3 3.08V
St MicroElectronics STM1001 voltage monitor in SOT-23-3 package with 3.08 V reset threshold, 210 ms reset delay and 1.2 V to 5.5 V supply range.
St MicroElectronics STM1001 Voltage Monitor & Reset Circuit is a low-power supervisory circuit with a 3.08 V reset threshold, housed in a compact SOT-23-3 surface-mount package. It monitors a single voltage rail and asserts a reset signal when the VCC supply falls below the preset threshold, helping to maintain system stability during power disturbances.
Overview
The active-low, open-drain reset output remains asserted until VCC rises above the threshold and stays stable for a minimum recovery time (trec). This behaviour helps prevent erratic operation during power-up and brown-out conditions. The integrated reset delay of 210 ms further filters transient noise on the supply line.
Key Features
- Power supply monitoring of a single voltage rail
- Active-low, open-drain reset output for flexible interfacing
- Typical supply current of 6 μA for energy-efficient design
- Reset assertion down to VCC = 1 V, providing protection in undervoltage conditions
- 210 ms reset delay time for immunity to power transients
- Supply voltage range from 1.2 V to 5.5 V
- Operating temperature range from -40 °C to 85 °C
Specifications
- Package: SOT-23-3 surface mount
- Reset threshold voltage: 3.08 V
- Dimensions (W x D x H): 3.3 x 1.5 x 4.3
- Weight: 0.181 g
Applications
The compact package suits space-constrained PCB designs, while the wide temperature range supports use in harsh industrial environments. The low supply current makes the device suitable for power-sensitive applications.
- For power supply monitoring
- For power-sensitive applications
- For space-constrained PCB designs
- For harsh industrial environments
- Package Type: SOT-23-3
- Mounting Type: Surface Mount
- Reset Threshold Voltage: 3.08 V
- Supply Voltage Range: 1.2 V to 5.5 V
- Typical Supply Current: 6 μA
- Reset Delay Time: 210 ms
- Reset Output: Active-Low, Open-Drain
- Reset Assertion Down To: VCC = 1 V
- Operating Temperature Range: -40 °C to 85 °C
- Special Feature: Monitors a single voltage rail
- Width: 3.3
- Depth: 1.5
- Height: 4.3
- Weight: 0.181 g
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