
Allicdata Part #: | LT1579CS-3-ND |
Manufacturer Part#: |
LT1579CS-3 |
Price: | $ 10.66 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC LDO REG SMART DUAL 3V 16-SOIC |
More Detail: | Battery Power Management IC Multi-Chemistry 16-SOI... |
DataSheet: | ![]() |
Quantity: | 21 |
1 +: | $ 9.68940 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Function: | Power Management |
Battery Chemistry: | Multi-Chemistry |
Number of Cells: | 1 |
Fault Protection: | Over Current, Over Temperature, Reverse Battery, Reverse Current |
Interface: | -- |
Operating Temperature: | 0°C ~ 125°C (TJ) |
Package / Case: | 16-SOIC (0.154", 3.90mm Width) |
Supplier Device Package: | 16-SOIC |
Base Part Number: | LT1579 |
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Power Management Integrated Circuit (PMIC) boasts a wide range of applications, where devices require power regulation and management. A Battery Management System (BMS) is one such application whereby the PMIC is designed to ensure optimal performance from a battery in order to maximize its lifespan and safety. The LT1579CS-3 from Linear Technology is one such Battery Management System (BMS) PMIC that is designed for optimal power management for a 3 cell Li-Ion battery pack.
The LT1579CS-3 is a low-voltage, monolithic switching controller that works in conjunction with a minimum of two MOSFETs, to provide drive and control signals for a single Li-Ion battery cell pack. It is designed to prevent overcharging and over-discharging of each cell, as well as provide built-in balancing control. It offers a very compact solution, since all balancing and cell switching circuitry are included on the same die of the LTC.
The LT1579CS-3 is based on a 2×2 phase switching architecture, with two battery cells in each phase. This means that a 3-cell battery pack effectively reduces to two, 2-cell packs. The device also features an adjustable charge current limit, and offers under-voltage and over-voltage detection along with over-temperature, short circuit and cell reversal protection. Its built-in capacitive load sharing allows for load current up to 10A per cell and up to 30A during the balance mode.
The primary function of this Battery Management System is to ensure that a 3 cell Li-Ion battery pack remains in its optimal range of operation and state of charge, while supplying power to the load. The device will also monitor the state of each cell and trigger a shut off if cell voltages reach unsafe levels. To achieve this, the LT1579CS-3 implements two MOSFETs in each phase and a capacitor between them. The two MOSFETs on each phase form an \'H-bridge\' circuit, while the capacitor acts as an inductor, filtering and smoothing the power draw. The battery cells then draw power in a \'push-pull\' arrangement.
The LT1579CS-3 offers many interesting features, such as an \'AUTO\' mode, which allows for automatic detection and selection of a suitable input voltage range, and short circuit protection. It also supports hot swapping of components, so changes can be made without having to power down the entire system. Finally, its built-in cell balancing feature ensures maximum cell performance and safety, by balancing cells as necessary.
In conclusion, the LT1579CS-3 is a highly advanced and compact PMIC, designed for optimal battery management in 3-cell Li-Ion battery packs. It offers a variety of features, including short circuit protection, adjustable charge current limit, automatic input voltage range selection, hot swapping capabilities and built-in cell balancing.
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