MN1382SDP Integrated Circuits (ICs)

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Power Management Integrated Circuits (PMIC) is one of the most important components in many electronic products. In particular, supervisors, also called power monitors, detect power failure, reset circuits and introduce a wait period after power comes back up. Among them, the MAXIM Integrated MN1382SDP is a very popular and powerful supervisor IC.

The MN1382SDP produces a reset signal and a width-adjustable reset delay when the V DD supply voltage falls below a preset threshold. It also generates an interrupt signal when both the supply and reset signals become inactive. These features are highly valuable in a variety of applications, including microprocessors, digital signal processors, custom ICs, system and graphic cards.

The MN1382SDP supports overvoltage and lowvoltage protection. It can be used to limit the peak output current in a battery charger or limit the output current of a power supply when the output voltage is too high or low. The monitor can also be used to protect against overcharging and overdischarging of a battery. Finally, it can be used to control the output of an incandescent lamp as it dims during a final stages of failure.

The MN1382SDP works by comparing the monitored voltage level to the preset threshold inputs. An adjustable voltage comparator checks for overvoltage and undervoltage conditions. When triggered, a high accuracy digital delay locks for some time period then generates the reset signal. The delay allows the selection of startup timing from 5ms to 1.5 seconds and a timer count from 768ms to 16 seconds. An internal oscillator with a clock frequency range of 100 kHz to 1.2 GHz also allows more flexibility in setting the delay timing.

The MN1382SDP is available in a tiny 8-pin package and offers one of the lowest power consumption rates in the industry. Moreover, it has good EMI and RFI immunity, so it can be used in noisy environments. Furthermore, the device is perfectly suitable for harsh environment applications that require operating temperature range from -40°C to +125°C.

In conclusion, the MAXIM Integrated MN1382SDP is an ideal supervisor IC for digital signal processors, microprocessors, custom ICs and system and graphic cards. It is a very efficient IC with low power consumption, good EMI and RFI protection, adjustable voltage comparators and adjustable reset delays. It provides a high level of digital protection for these systems and is a great choice for applications requiring harsh operating environments.

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