LTC4085EDE-4#PBF

PMIC - Battery Chargers, as the name suggests, are Integrated Circuits that are used to monitor and control the charging of batteries. The LTC4085EDE-4#PBF is an advanced battery charger controller from Linear Technology that provides high-efficiency and reliable charging. It is a complete lithium-ion and Lead-acid battery charging solution that includes an oscillator and fault protection to protect the battery from over-charging and over-temperature conditions. The LTC4085EDE-4#PBF features an adjustable current and voltage output, allowing for targeting battery pack customisation, as well as over-voltage protection, short-circuit protection, and Proportional-to-Absolute-Temperature or PTA-controlled charging.

The main application of the LTC4085EDE-4#PBF is in charging secondary batteries in automotive and industrial applications. The device can be used to charge a single or multiple batteries, including Lead-acid or lithium-ion batteries. It can also be used to charge smaller batteries, such as those found in portable electronic devices.The LTC4085EDE-4#PBF has an adjustable constant current and constant voltage (CC/CV) charging mode which is suitable for fully-charged batteries. It also supports charging in two different temperatures, allowing for more efficient charging for certain battery designs. The LTC4085EDE-4#PBF features an efficient step-down DC/DC converter which is capable of supplying large current for fast charging. The LTC4085EDE-4#PBF also features a wide input voltage range, allowing for its use in a variety of automotive and other applications.

The working principle of the LTC4085EDE-4#PBF can be explained in two main steps: firstly, when a battery is inserted in the device, the LTC4085EDE-4#PBF starts charging it by controlling the current and voltage output according to the pre-programmed values. When the battery is fully charged, the device switches to a constant-voltage charging mode, and enter a trickle-charge mode. In this mode, the voltage is held constant, and the current is reduced to a minimum to prevent overcharging.

In addition to its charging capabilities, the LTC4085EDE-4#PBF also has a number of fault-protection features. The device is equipped with a current-limit, overvoltage-limit, and low-voltage-limit, to prevent the battery from being charged at an excessive level. It also has an overtemperature-limit to protect the components from excessive heat. In the event of an anomaly in the charging process, the device enters a fault mode.

The LTC4085EDE-4#PBF can be used as a standalone battery charger or as part of a system. In a system, the device can be used to manage multiple batteries and control their charging in response to environmental conditions. It can also be used to provide system information and status updates to the host processor via its two integrated UART ports.

The LTC4085EDE-4#PBF is a efficient and reliable battery charger controller for automotive and industrial applications. Its adjustable CC/CV charging mode, wide input voltage range, and over-temperature protection ensures that it can be used in a variety of applications. The device can also be used for multiple batteries and can provide output data. Overall, the device is a useful addition to any automotive or industrial charging application.