AS3711-BWLM-00

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Power management integrated circuit (PMIC) is a key component in any system that needs to manage energy efficiently. It integrates multiple analog, digital and other power-management functions into a single package. Specialized PMICs, like the AS3711-BWLM-00, are used in a range of applications, from automotive to consumer electronics. This article will discuss the application field and working principle of the AS3711-BWLM-00.

The AS3711-BWLM-00 is a compact, power management integrated circuit (PMIC) developed by ams AG. It is specifically designed for advanced applications in next-generation wearables, such as sports and fitness tracking, smartwatches, body-worn medical devices, and other advanced IoT devices. The device offers a complete set of power management features in a very small package, including a buck converter, a battery charger, a supercapacitor charger, a load switch, an LDO and a digital power processor (DPP).

The AS3711-BWLM-00 has many advantages that make it an attractive option for design engineers. First, its compact size allows it to be integrated into smaller devices and save valuable board space. Second, its high integration level incorporates many features into a single IC, enabling designers to condense multiple components into one device. Third, the device supports Passive PoE capabilities, allowing it to derive power from local power supplies instead of being connected to a USB cable. And lastly, it is optimized to perform efficiently and reliably in very small form factors.

The AS3711-BWLM-00’s buck converter is the key component of the device. It is responsible for converting a voltage input from the battery or power supply into a fixed output voltage that can be used to power other components. The buck converter has an adjustable output voltage range between 0.6V and 5.5V, as well as a high efficiency over a wide range of load currents. The device also features a load switch that can be used to enable or disable components or peripherals, or to control the power state of the system.

The AS3711-BWLM-00 also features a battery charger, which can be used to charge a Li-Ion or Li-Pol cell battery or supercap. The charger has a charging current range of up to 600mA, and supports trickle charging, maintains charging, terminal charging and pulse charging, depending on the battery type selected. The device also has an LDO that can be used to power low-power analog and digital components, with an output voltage range of up to 5.6V.

Finally, the device includes a Digital Power Processor (DPP) which provides real-time monitoring and control of the power subsystem. It enables the device to dynamically optimize power flow, maximize efficiency, and reduce power consumption. The DPP also offers system protection by detecting device temperature, current, and overvoltage conditions and generating system alerts. Additionally, the DPP can be used to enable the device for Passive PoE, allowing it to pull power from local power sources.

In conclusion, the AS3711-BWLM-00 is highly suitable for a variety of applications, from automotive and consumer electronics to wearables and IoT devices. The device’s high integration level, small size and low power consumption make it an attractive option for design engineers. It incorporates a buck converter, a battery charger, a supercapacitor charger, a load switch, an LDO, and a digital power processor (DPP), allowing it to provide a complete power management solution in a tiny form factor.

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