ISL78692-1CR3Z

Series:	Automotive, AEC-Q100
Packaging:	Tube
Part Status:	Active
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Timer
Fault Protection:	Over Temperature
Charge Current - Max:	1A
Battery Pack Voltage:	4.1V
Voltage - Supply (Max):	5.5V
Interface:	USB
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	10-VFDFN Exposed Pad
Supplier Device Package:	10-DFN (3x3)

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ISL78692-1CR3Z Application Field and Working Principle

The ISL78692-1CR3Z is a single-cell lithium-ion/polymer Battery Charger and system power supplier specifically designed for portable applications. It is designed for single-cell Li-ion/Polymer battery packs ranging from 2.5V to 4.3V.The device can be used as either a battery charger, system power supplier, or as both. It features an easy-to-use programming interface with integrated software. It is an ideal device for applications such as mobile phones, digital cameras, digital video recorders and other handheld devices.

Application Fields

The ISL78692-1CR3Z is designed for a wide range of applications, including mobile phones, digital cameras, digital video recorders and other handheld devices. It provides excellent power management capabilities due to its high efficiency, low quiescent current, and integrated functional modules. The device offers a wide range of features, such as automatic switchover between battery and AC input, two step charging, and direct connection to a DC voltage source. It also provides temperature protection, under-voltage lockout and over-voltage protection.The ISL78692-1CR3Z can be used for battery charging, as a system power supply, or as both. It also supports high-voltage battery cells over 4.3V. This makes it suitable for various high-end applications, such as in remote control devices, personal audio players and GPS systems.

Working Principle

The ISL78692-1CR3Z is a fully integrated charger solution. It includes a battery charging system, a buck/boost power converter, and a low-noise system power supply. The device includes integrated regulators and controllers, along with several external components, such as resistors, capacitors, and diodes.The device is designed to detect and regulate the battery level, ensuring that the battery is charged efficiently and safely. It has an adjustable charge current for charging Lithium-Ion and Li-Polymer batteries. It also has an adjustable input voltage range of 2.5V to 4.3V, and an adjustable maximum charge voltage.The device features a regulated output voltage, adjustable from 3.2V to 4.2V. The regulated output voltage is controlled by a Charge Voltage Control algorithm, which tracks the battery voltage. The Charge Voltage Control algorithm maintains the battery voltage by regulating the output voltage.The ISL78692-1CR3Z features a dynamic input current limit (DIL) protection feature, which can protect the input source from overloading or short-circuiting. The device has an adjustable maximum input current limit, which helps prevent the input source from overloading or short-circuiting.The device has an adjustable safety timer, which will shut down the charging process after reaching a predetermined time. This helps to protect the battery from overcharging. The device also has an adjustable input current monitor, which monitors the current drawn by the device and can provide additional overcurrent protection. The ISL78692-1CR3Z is a highly integrated and versatile device, suitable for a wide range of applications. It provides excellent power management capabilities, wide input voltage range, adjustable output voltage, dynamic input current limit protection, and adjustable safety timer, making it an ideal device for portable applications.

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