We can Copy MCU SN8P2608 Heximal, please view the Copy MCU SN8P2608 features for your reference:
The brown out reset is a power dropping condition. The power drops from normal voltage to low voltage by external factors (e.g. EFT interference or external loading changed). The brown out reset would make the system not work well or executing program error when Copy MCU .
The power dropping might through the voltage range that’s the system dead-band. The dead-band means the power range can’t offer the system minimum operation power requirement. The above diagram is a typical brown out reset diagram. There is a serious noise under the VDD, and VDD voltage drops very deep if Copy MCU .
There is a dotted line to separate the system working area. The above area is the system work well area. The below area is the system work error area called dead-band. V1 doesn’t touch the below area and not effect the system operation. But the V2 and V3 is under the below area and may induce the system error occurrence. Let system under dead-band includes some conditions before Copy MCU .
DC application:
The power source of DC application is usually using battery. When low battery condition and MCU drive any loading, the power drops and keeps in dead-band. Under the situation, the power won’t drop deeper and not touch the system reset voltage. That makes the system under dead-band after Copy MCU .
AC application:
In AC power application, the DC power is regulated from AC power source. This kind of power usually couples with AC noise that makes the DC power dirty. Or the external loading is very heavy, e.g. driving motor. The loading operating induces noise and overlaps with the DC power. VDD drops by the noise, and the system works under unstable power situation if Copy MCU .
The power on duration and power down duration are longer in AC application. The system power on sequence protects the power on successful, but the power down situation is like DC low battery condition. When turn off the AC power, the VDD drops slowly and through the dead-band for a while before Copy MCU .
To improve the brown out reset needs to know the system minimum operating voltage which is depend on the system executing rate and power level. Different system executing rates have different system minimum operating voltage after Copy MCU .
The electrical characteristic section shows the system voltage to executing rate relationship. Normally the system operation voltage area is higher than the system reset voltage to VDD, and the reset voltage is decided by LVD detect level if Copy MCU .
The system minimum operating voltage rises when the system executing rate upper even higher than system reset voltage. The dead-band definition is the system minimum operating voltage above the system reset voltage when Copy MCU .
