BQ77PL900DLRG4

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The BQ77PL900DLRG4 is a powerful, high performance, integrated circuit (IC) featured in battery management systems (BMS) developed by Texas Instruments, a global semiconductor technology company. The chip has been designed to enable a safety-oriented, reliable, and cost-effective solution for low- and high-voltage battery applications. This integrated IC, equipped with protection and control functions, is ideal for use in power-sensitive applications such as portable consumer electronics and automotive battery packs.

The chip is designed to bridge the gap between the power source, the current/voltage sensing, and the overall system safety. The core of the BQ77PL900DLRG4 circuit is an optimized power supply switch that helps to effectively manage battery charge/discharge and offer advanced protection functions. In order to monitor the battery and keep it within safe operating parameters, the IC has an onboard 10-bit ADC for high accuracy monitoring of voltage, temperature, and current. The IC features the In-rush Adaptive Current Limit (IAL) function, which allows it to limit the inrush current entering the battery safely, increasing the end-product lifetime.

Additionally, the chip includes a System Supervisor that offers reliable system monitoring and reporting functions. This embedded micro-controller monitors the system conditions and provides output status data for seamless integration with other sections of the system. It also features an Enhanced Cell Protection that stops further cell damage caused by internal or external events. The cell voltage is monitored by high-accuracy thresholds set by the user and an internal failure flag or interrupt to the system supervisor is asserted if any of the threshold values are violated.

The BQ77PL900DLRG4 is a highly reliable and robust asset in modern PMICS. Its integrated functions simplify the design and system integration, delivering the performance and safety required for USB and lightning systems. Additionally, its integrated built-in protection features and advanced monitoring functions increase the protection and system reliability for electronic systems.

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