AP9214LA-AJ-HSBR-7

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PMICs - Battery Management products are designed to control and manage the operation of batteries and rechargeable battery circuits. The AP9214LA-AJ-HSBR-7 is a Battery Management Integrated Circuit (IC) from Diodes Incorporated that consists of a MOSFET high-side switch, an over-voltage protection (OVP) stage, an under-voltage protection (UVP) stage, an over-temperature protection (OTP) stage, an input voltage regulator (IVR) stage, and a buck converter stage. It is designed to provide dynamic protection and control of lithium batteries in portable electronic products, such as cell phones, tablets, and Wearables.

The AP9214LA-AJ-HSBR-7 is an integrated solution that achieves high accuracy, low power consumption, and an extended temperature range of -40 to +85°C. It is optimized for dynamic battery protection, boasting superior cell balancing performance and more accurate charge termination. The IC offers charging voltage up to 4.4V and has a maximum charging current of 2A. The device also features a programmable pre-charge function for improved battery cycle durability.

The device employs a buck regulator topology and has adjustable input current limit and short circuit current limiting, as well as an input under-voltage lockout feature. The output voltage features an adjustable range that is set by two external resistors and can be used to one of the monitoring points of the battery stack. When the output voltage exceeds the preset voltage, the OVP stage will be activated, shutting off the external switch and limiting the voltage to 4.5V. The UVP stage will be activated if there is a drop in battery voltage and the device will then shut off the external switch and limit the voltage to 2.5V.

In addition, the device includes a Buck converter stage with a constant frequency that is adjustable via an external resistor. The Buck converter also features a minimum on-Time limitation to ensure partial load efficiency. All of these features come together to achieve quick transient response and high efficiency in a lightweight, compact package.

The AP9214LA-AJ-HSBR-7 is easy to use and adaptable to a variety of application demands. The current limit and short circuit protection stages provide superior safety performance, while the buck regulator topology ensures high efficiency over the entire load range. This makes the device the ideal choice for protecting lithium batteries in a variety of portable electronic products.

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