MC33341DR2G

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The MC33341DR2G is a multi-chemistry battery charging solution commonly used in application fields requiring precision battery management. This chip provides charge current and charge voltage accuracy with low system cost. It also offers a wide range of protection and diagnostics to maximize system reliability and battery life. In addition, it reduces the complexity of the system and enables fast and flexible design. As part of the family of Precision Multi-chemistry Controllers, the MC33341DR2G combines robust hardware and firmware to offer a comprehensive portfolio of safety and cost-protection features with exceptional system performance.

The MC33341DR2G can be used to charge a wide variety of chemistries including lithium-ion, nickel-metal-hydride (NiMH) and lead acid. It supports both linear and switching topologies, and offers programmable input current limit, current accumulation/timer, and charge threshold levels. The device also provides a range of safety features such as current over-temperature protection and cell balancer to ensure safe and fast device charging. Additionally, the device supports in-system testing for further protection of the overall system.

The MC33341DR2G features two charge stages — Constant-Current (CC) and Constant-Voltage (CV) — to ensure fast and safe charging. The CC stage starts once the voltage on the battery is higher than the minimum voltage threshold and the programmed current is reached. During self-learning, the average current is selected based on the minimum current necessary to safely charge the battery. This current varies by battery chemistry. The voltage on the battery needs to be at or above the preprogrammed voltage level before transitioning to the CV stage. During this stage, the MC33341DR2G provides the battery with a controlled voltage to charge it.

The MC33341DR2G offers powerful diagnostics to detect abnormal operating conditions that may harm the system or battery. This includes features such as a fail switch module that monitors the charging cycle, a temperature sensor that monitors the temperature of the battery, and a current-monitoring feature that detects an excessive overcurrent condition. With these features, the device can initiate a shutdown and protect the system if an abnormal condition is detected.

The MC33341DR2G offers users a wide range of protection and diagnostics that are designed to maximize system reliability and battery life. Its robust hardware and firmware provide precise charging accuracy, enabling fast and flexible design while also protecting the system against overcharging and overdischarging. The device is an ideal solution for application fields requiring precise battery management and is suitable for use in a variety of markets, including consumer electronics, automotive, and medical.

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