S-80156CLMC-JJHT2G

PMIC - Supervisors: S-80156CLMC-JJHT2G Application Field and Working Principle

The S-80156CLMC-JJHT2G is a member of Prohibitron’s Supervisors family of product solutions. It is a dual-channel power monitoring IC (PMIC) supervisor with system reset, power-on reset, and logic low reset functions. This PMIC is mainly used in AC/DC and DC/DC applications. It can detect positive and negative output voltage and monitor input voltage and output voltage through a full monitor circuit. Furthermore, it includes adjustable output power control, monitoring, and protection functions that enhance system performance and reliability.

Features

The S-80156CLMC-JJHT2G has a number of features which make it well suited for a variety of applications. For example, its small SOT23-6 package and high integration provide an inexpensive solution for devices with limited space, reducing board space and cost requirements. The devices are also equipped with under voltage protection for both inputs and outputs, ensuring circuit integrity. Furthermore, it has a high accuracy voltage reset threshold of 2.9V to 3.5V and active-high/low/open-drain reset logic level.

In addition, it also offers a watchdog timer (WDT) to system builders. This can be used to detect microcontroller reset and enable system reset if required. An enable input (EN) is also provided, allowing it to be activated or deactivated at any time. Finally, it also has thermal shutdown capability, protecting against excessive temperatures.

Working Principle

The S-80156CLMC-JJHT2G operates by monitoring an input voltage (VIN) and output voltage (VOUT). When the input or output voltage reaches the upper and lower limit thresholds, it switches the reset state from logic high to logic low. The reset state is open drain and can be set to active high or active low. In addition, the reset function can be disabled by setting the enable input (EN) to low.

The watchdog timer (WDT) monitors the activity of the device, ensuring regular operation. If the device’s activity stops, the WDT activates a system reset. Further protection is provided by the built-in under voltage lockouts (UVLO), which are normally set at 2.9V and 3.5V. If either voltage reaches either of these thresholds, the reset signal is triggered in order to protect the system.

Finally, the thermal shutdown protection ensures that the device does not overheat, providing protection for both the device and the system. The thermal shutdown protection is triggered if the device’s temperature exceeds a certain threshold. This feature helps to ensure the longevity of the system.

Applications

The S-80156CLMC-JJHT2G can be used in a range of applications, including AC/DC and DC/DC systems, and is ideal for devices with limited space. It can be used to protect the system against under voltage and thermal shutdown, providing enhanced system performance and reliability. Additionally, it can be used as a reset controller in microcontrollers, allowing system reset and watchdog timer functionality.

In addition, it is suitable for DC/DC power supply applications, as it can provide power-on reset, under voltage lockout and system reset functions, allowing the system to remain reliable and stable. It is also suitable for automotive applications, providing enhanced protection for the system.

Conclusion

The S-80156CLMC-JJHT2G is an ideal solution for a variety of applications. It offers enhanced protection against under voltage, thermal shutdown and system reset, providing system reliability and stability. Its small SOT23-6 package and high integration make it an ideal solution for devices with limited space. Finally, it can be used in a range of applications, including AC/DC, DC/DC and automotive applications.