RS803-3.08YSF3

The RS803 microprocessor (μP) supervisory circuits reduce the complexity and number of components required to monitor power- supply and battery function in μP systems. This device significantly improves system reliability and accuracy compared to separate ICs or discrete components. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 200ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The RS803 has an open- drain output stage.The RS803's open- drain RESET output requires a pull- up resistor that can be connected to a voltage higher than VCC The RS803 have an active- low RESET output.The reset comparator is designed to ignore fast transients on VCC and the outputs are guaranteed to be in the correct logic state for VCC down to 1.2V. Low supply current makes the RS803 ideal for use in portable equipment.The RS803 is available in Green SOT23 package. It operates over an ambient temperature range of - 40℃ to +125℃

Applications

• Computers
• SOC, DSP or Micro controllers
• Embedded Systems
• Industrial Equipment
• Intelligent Instruments
• Critical μP Power Monitoring
• Wireless Communications Systems

Key features

• Operating Voltage Range: 1.2V to 5.5V
• Low Power Consumption: 50μA (Max)
• Precision Supply- Voltage Monitor: 2.63V, 2.93V, 3.08V, 4.00V, 4.65V
• Guaranteed RESET Valid at VCC = 1.2V
• 200ms Reset Pulse Width
• Voltage Monitor for Power- Fail or LowBattery Warning
• Operating Temperature Range: - 40°C to +125°C
• Open- Drain, RESET Output
• Available in Green Package: SOT23