TPS3838K33MDBVREP

Power Management Integrated Circuit - Supervisors

The TPS3838K33MDBVREP is a low-power, single-channel Power Management Integrated Circuit (PMIC) supervisor with advanced integration and low quiescent current. It is designed to monitor an input voltage for an indication of a power-up or power-down condition. In applications where a reliable indication of power-up/down activity is required, this power management integrated circuit offers superior performance.

Features and Benefits

The TPS3838K33MDBVREP offers a number of features and benefits that make it an ideal choice for power-management applications. These features include:

• Low power consumption
• High noise immunity
• Programmable input thresholds
• Wide operating voltage range
• Low quiescent current
• Zero power up/down detection time
• On-chip filter to reduce input noise

Application Fields

The TPS3838K33MDBVREP is suitable for a wide range of power management applications. It is particularly well-suited for applications that require a reliable indication of power-up or power-down conditions, such as in notebooks, tablet PCs, and embedded systems.

Working Principle

The TPS3838K33MDBVREP is a voltage-supervisor IC that monitors an input voltage for a power up/down condition. It has two primary functions: a monitoring circuit and a delay circuit. The monitoring circuit detects the input voltage and determines whether it has reached a preset threshold voltage. The delay circuit provides a time delay before the output is switched on or off in response to changes in the input voltage. This time delay provides added protection against false triggering due to brief power spikes.

When the input voltage rises above the preset threshold, the TPS3838K33MDBVREP will activate its output and switch-on the connected load. It will then enter a hold mode, where it monitors the input voltage for a power-down condition. When the input voltage falls below the preset threshold, the TPS3838K33MDBVREP will deactivate its output and switch-off the connected load.