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GRM21BR60J226ME39 Datasheet(PDF) 10 Page - ON Semiconductor |
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GRM21BR60J226ME39 Datasheet(HTML) 10 Page - ON Semiconductor |
10 / 16 page NCP6323, NCV6323 www.onsemi.com 10 Cycle−by−Cycle Current Limitation The NCP/NCV6323 protects the device from over current with a fixed−value cycle−by−cycle current limitation. The typical peak current limit ILMT is 2.8 A. If inductor current exceeds the current limit threshold, the P−MOSFET will be turned off cycle−by−cycle. The maximum output current can be calculated by I MAX + ILMT * V OUT @ VIN * VOUT 2 @ V IN @ f SW @ L (eq. 1) where VIN is input supply voltage, VOUT is output voltage, L is inductance of the filter inductor, and fSW is 3 MHz normal switching frequency. Negative Current Protection The NCP/NCV6323 includes a 1 A negative current protection. It helps to protect the internal NMOS in case of applications which require high output capacitor value. Thermal Shutdown The NCP/NCV6323 has a thermal shutdown protection to protect the device from overheating when the die temperature exceeds 170 °C. After the thermal protection is triggered, the fault state can be ended by re−applying VIN and/or EN when the temperature drops down below 125 °C. |
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