LT3650EMSE-8.2#TRPBF

The LT3650EMSE-8.2#TRPBF is a state-of-the-art, integrated Li-Ion battery charger and integrated supply, specifically designed for space-constrained, portable applications. It enables full charge cycle support from 0V to 4.2V and includes a Power Path Interrupt Mode (PPIM) to manage the hot plug battery insertion events. The LT3650EMSE-8.2#TRPBF greatly reduces the size of the charging implementation by integrating both a regulated supply and a buck-boost charge circuit into a single, highly efficient, low-profile package.

As a PMIC - Battery Chargers, the LT3650EMSE-8.2#TRPBF has the following applications and working principles:

Applications
The LT3650EMSE-8.2#TRPBF is ideal for single cell lithium-ion applications such as portable medical and digital products, including tablets and smart phones. Its integrated features reduce the cost and complexity of battery management, while maximizing system reliability and battery life.

Working Principle
The LT3650EMSE-8.2#TRPBF combines with two separate switching regulator power channels that allow simultaneous charging and system supply operation. It supports either Constant-Voltage (CV) or Constant-Current (CC) charging. During the charging cycle, the LT3650EMSE-8.2#TRPBF first charges the battery with an adjustable constant-current from 0.2A to 2.5A, then an adjustable constant-voltage (4.2V) is maintained until the charge current drops to the adjustable charge termination current. While charging, the system supply uses the ≥ 2.5A supply current from the battery, allowing the system to remain on at all times. The power path management then re-balances the supply/charge currents to ensure the battery does not completely discharge during system operation.

The LT3650EMSE-8.2#TRPBF also features various protection features such as Over Voltage Protection (OVP), Under Voltage Protection (UVP), over-temperature protection, short circuit protection, over-current protection and battery trickle-charge protection. It also supports a wide input voltage range of 2.35V to 5.5V and an operating junction temperature range of −40°C to +125°C. These features make the LT3650EMSE-8.2#TRPBF an ideal choice for space-constrained, portable applications.

In conclusion, the LT3650EMSE-8.2#TRPBF is an integrated Li-Ion battery charger and integrated supply specifically designed for portable applications that require a compact solution. It combines two separate switching regulator power channels to enable simultaneous charging and system supply operation and supports various protection features. Its wide input voltage range and operating junction temperature range make it an ideal choice for space-constrained, portable applications.