PT8A3232PE

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The PT8A3232PE is an integrated power management device from Silicon Labs that is intended for use in mobile battery-powered systems, providing complete Power Management features with minimal component count. This device targets portable devices requiring 8.4V output from standard 1.8/2.5/3.3V battery inputs, such as Li-Ion, Li-Po and NiMH battery chemistries.

Features

The PT8A3232PE offers several features beneficial to its application field and working principle, including circuit protection, power sequencing, battery management, step-up converter control and power savings. By integrating these features into a single device, designers can reduce their component count and product size while streamlining the power delivery sub-system.

Circuit Protection

The PT8A3232PE’s key feature is circuit protection. It supports a wide voltage range (1.2V–5.5V) and provides current and temperature monitoring features such as hot swap protection and over-current protection. It also supports a programmable UVLO threshold, which allows the device to adjust to different voltage sources. These features provide a level of protection for the power sub-system of the system.

Power Sequencing and Battery Management

The PT8A3232PE also features a power-sequencing engine with programmable startup/shutdown voltage thresholds, which enables the device to sequence power supplies, automatically adjust to different system requirements and safely power down the system when needed. It also features battery management functions such as battery charging, full-charge and empty detection, and battery isolation. These features help to optimize and control the system power consumption.

Step-Up Converter Control and Power Savings

The PT8A3232PE utilizes a Step-Up converter to step up voltage from the input to its 8.4V output. The device also includes Power Savings blocks to reduce power consumption and extend battery life. These blocks include a programmable Low Voltage Detector (LVD) and a low-power shutdown mode. These features help reduce power consumption, thereby increasing the overall system efficiency.

Conclusion

The PT8A3232PE is an integrated power management device from Silicon Labs that is designed to meet the power requirements of mobile battery-powered systems. Its features, including circuit protection, power sequencing, battery management, Step-Up converter control and power savings, help to optimize and control the system power consumption. This device helps to reduce component count and product size while streamlining the power delivery sub-system. With its high reliability and efficiency, the PT8A3232PE is a great choice for mobile systems.

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