Monitor voltage drop in the 2 systems! Additional overvoltage monitoring circuit can also be added!
RT8H182E is a power supply voltage monitoring IC that detects power supply voltage interruptions or drops and generates a reset signal (L output). It can monitor two power supply systems, including the power supply voltage. The monitoring voltage for the power supply voltage can be changed by external resistors. The detection voltage for the other power supply voltage can be adjusted using a resistor divider. It is also possible to set the delay time for reset release using an external capacitor. Additionally, this product has one built-in comparator. Since this comparator has an open-collector output, level shifting using any power supply is possible. By inputting the power supply voltage using a resistor divider, it can also be used for overvoltage detection. By connecting the reset output terminal to the input terminal of this comparator, it can also be used for logical inversion of the reset output.
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basic information
□Features ● Power voltage drop detection (VSA = 4.2V ± 4%) ● Voltage drop detection with arbitrary voltage setting using an external resistor (VSB = 1.23V ± 4%) ● Hysteresis characteristics during release (VSA, VSB only) ● Delay time for reset release can be set arbitrarily ● Built-in comparator capable of configuring overvoltage detection circuits, etc. (open collector output) ● Low power consumption (ICC = 0.4 mA typical @ VCC = 5V) ● Compact package (TMSOP8: 2.9mm × 4.0mm) □Similar Products ● Overcurrent and overvoltage detection IC 'RT8H020C' ● Overvoltage detection IC with built-in timer latch function 'RT8H060C' output High during overvoltage detection ● Overvoltage detection IC with built-in timer latch function 'RT8H070C' output Low during overvoltage detection
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Applications/Examples of results
●Amusement equipment ●Residential equipment ●Industrial equipment ●Office automation equipment
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Company information
Isahaya Electronics began production of small signal transistors in 1973 and has evolved its semiconductor technology into design technologies for gate drivers and DC/DC converters. In recent years, the company has also focused on developing high-efficiency, high-power-factor power supply technologies to contribute to carbon neutrality. (Three-phase PFC, 1500V input compatible DC/DC converters, bidirectional converters, etc.) Meanwhile, to meet diverse needs, small signal transistors have also evolved with enhanced functionality and integration, expanding the lineup of high-voltage, high-current transistors, MOSFETs, and analog ICs.