LTC1559CS-3.3#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Power Management
Battery Chemistry:	Nickel Cadmium
Number of Cells:	1
Fault Protection:	Over Temperature, Short Circuit
Interface:	--
Operating Temperature:	0°C ~ 70°C (TA)
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	LTC1559

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Introduction:

The LTC1559CS-3.3#TRPBF is an ideal solution for battery management systems (BMS) and is part of the family of Linear Technology PMICs. As an integrated voltage monitor and switchable load controller, the LTC1559CS-3.3#TRPBF allows for more efficient system designs and is able to provide both load and battery monitoring in a single chip.

Features:

The LTC1559CS-3.3#TRPBF features a wide operating range with a typical boost voltage of 4.5V and a typical output current of up to 5A. It also has an open and short circuit protection, an adjustable output voltage range, and an adjustable switching frequency. Additionally, the LTC1559CS-3.3#TRPBF offers an over-current protection and a wide input voltage range of 0.8-5.5V.

Application Fields:

The LTC1559CS-3.3#TRPBF has numerous applications in battery management systems. It is used in a wide range of applications, such as cellular phones, digital cameras, portable devices, calculators, notebooks, and medical equipment. Additionally, this device can be used in cell-seat modules for vehicles, and it is also used in remote-control applications such as game controllers and wireless toys.

Working Principle:

The working principle of the LTC1559CS-3.3#TRPBF is based on the use of a voltage feedback loop to sense and control a load. The chip integrates a power switch, consisting of a high-side FET (Field-Effect Transistor), an open-drain output driver, and a low-side FET, which switches the load connected to the output.The high-side FET is used to switch the load and the low-side FET is used to terminate the connection between the load and the output once the switch is off. The voltage feedback loop uses an external voltage divider to sense the output voltage and produces an error signal that is used to adjust the duty cycle of the power switch.Furthermore, the LTC1559CS-3.3#TRPBF uses an under-voltage lockout feature to protect the load from accidental over-discharge. This feature will stop the FET from switching when the input voltage drops below the predetermined threshold. The protection circuit also has a hysteresis voltage, which allows the power switch to re-active at a pre-determined voltage when activated again.

Conclusion:

The LTC1559CS-3.3#TRPBF is an ideal solution for battery management systems, offering such features as adjustable output voltage, over-current protection, open and short circuit protection, and adjustable switching frequency. By utilizing this device, designers can create more efficient and reliable battery management systems.

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