Description

The S19233PBIFB is an electronic component model in the IC Chips product category. It is a microprocessor supervisory circuit designed to monitor up to four system supply voltages without the need for external components. This circuit asserts a single reset if any of the monitored supply voltages drops below its reset threshold. The S19233PBIFB features an active-low reset output that is asserted when any of the four monitored voltages are below their respective reset threshold. The reset output is open-drain with a weak internal pull-up (10µA) to IN2. The reset remains low for a specified reset timeout period of 120ms minimum after all voltages have stabilized. The output is valid as long as the IN1 or IN2 input voltage remains above 1V.

Specifications and features

Key Features:

• Simultaneous Quad-Voltage Monitoring
• Precision Factory-Trimmed Reset Threshold Options: +5.0, +3.3, +3.0, +2.5, +1.8, and -5.0V
• User-Adjustable Voltage Monitoring Threshold Options
• Low Supply Current: 55µA
• Open-Drain – AS1923A
• 10µA Current Source Pullup – AS1923B
• Reset Timeout Period: 120ms
• RESET Valid to IN1 = 1V or IN2 = 1V
• Immune to Fast INx Transients
• External Components not Required
• Guaranteed Performance: Operating Temperature Range = -40 to +85ºC
• 6-pin SOT23 package

Application Scenarios

The S19233PBIFB is ideal for portable and battery-powered systems, embedded controllers, intelligent instruments, automotive systems, critical CPU monitoring, and any multi-supply application.