LM3658SDX-B/NOPB

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LM3658SDX-B/NOPB is a low-noise, high-efficiency, high-current, integrated battery charge controller that is often found in consumer electronic devices. The LM3658SDX-B/NOPB is a small, simple and cost-effective solution for controlling the charging of lithium ion and lithium ion polymer batteries used in consumer electronics, wearables and internet of things (IoT) applications. The charge controller is designed for use with single-cell and multi-cell battery packs. It integrates a synchronous buck voltage regulator with low-noise charge and discharge switch logic, and supports both buck and boost topologies. The LM3658SDX-B/NOPB can achieve up to 95% efficiency, meaning less heat and less power consumed.

The LM3658SDX-B/NOPB is compatible with a wide range of battery chemistries including lithium ion, lithium ion polymer, and alkaline. The integrated switching voltage regulator provides total system solution with a wide input voltage range between 2.7 V and 5.5 V, and output voltages up to 4.2 V. The integration of both the buck and boost allows the charge controller to be used with either voltage converters or AC adapters. The LM3658SDX-B/NOPB is optimized for battery charging applications and provides a programmable constant-current and constant-voltage charge mode.

The LM3658SDX-B/NOPB application field is primarily that of managing and protecting a battery from overcharge, short-circuit, and over current situations. It also supports various types of active power saving features, allowing system designers the flexibility to reduce power consumption during battery charge and discharge cycles. Additionally, the LM3658SDX-B/NOPB can be configured to automatically bank charge in multiple charge stages, if applicable.

In terms of its working principle, the LM3658SDX-B/NOPB relies on the combination of the internal synchronous buck voltage regulator and low-comparator sensing currents. The buck-boost voltage regulator manages the charge voltage and current by controlling the power switches in the buck-boost topology. This ensures that the battery is only supplied with the appropriate amount of current required for charge and not exceed the battery capacity. The low-comparator sensing current is used to detect the charging current and can be used to automatically switch the operating modes of the charge controller, such as when the current drops below the programmed threshold.

In conclusion, the LM3658SDX-B/NOPB stands out as a low-noise, high-efficiency, high-current, integrated battery charge controller that offers an efficient, low-cost solution for controlling the charging of lithium ion and lithium ion polymer batteries used in consumer electronics, wearables and IoT applications. This device offers a wide input voltage range, wide temperature operating range, and supports both buck and boost topologies. The LM3658SDX-B/NOPB application field also provides a range of protections for the connected battery, such as overcharge, short-circuit, and over current protection. The working principle of the LM3658SDX-B/NOPB is based on the combination of the integrated synchronous buck voltage regulator and low-comparator sensing currents, allowing it to accurately and reliably control the charging of the attached battery.

The specific data is subject to PDF, and the above content is for reference