Ideal for preventing degradation or destruction of ICs and components from overcurrent during load short circuits and overvoltage due to abnormalities in surrounding devices!
The "RT8H040C" is an IC that detects two abnormal conditions: overcurrent and overvoltage on the load and GND lines. The overcurrent detection function monitors the voltage value of a current sensing resistor connected to GND to detect overcurrent conditions. The overvoltage detection function divides the voltage of the target being detected through a resistor divider and monitors that voltage value. Both the overcurrent and overvoltage detection functions are equipped with hysteresis in their detection sections, ensuring robust measures against false detection. The output is an OR output of the overcurrent detection signal and the overvoltage detection signal, which outputs a signal (Low) to indicate an abnormal condition if either one is detected. Additionally, the output format is open collector, allowing for input to different power systems (level shifting). The detection values for overcurrent and overvoltage can be set using resistors connected externally to the IC, allowing for flexible configuration according to the customer's circuit conditions.
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basic information
□Features ● Outputs abnormal signals by detecting input anomalies of either overcurrent or overvoltage ● Low-side overcurrent detection ● Built-in hysteresis (overcurrent detection and overvoltage detection) ● Open collector output ● Compact surface mount package (SC-74; 2.8mm × 2.8mm) □Similar Products ● RT8H020C (Overcurrent and overvoltage detection IC) → The overcurrent detection function is a high-side type that detects overcurrent on the power-load line.
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●Overcurrent and overvoltage protection for general electronic 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.
