Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Current, Timer
Fault Protection:	--
Charge Current - Max:	2A
Battery Pack Voltage:	4.1V
Voltage - Supply (Max):	10V
Interface:	--
Operating Temperature:	-20°C ~ 70°C (TA)
Package / Case:	16-VQFN Exposed Pad
Supplier Device Package:	16-QFN (5x5)
Base Part Number:	ISL6291

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Introduction

The ISL6291-1CRZ-T provides a high-performance, single dual-output linear battery charger designed to maintain the efficient charging of lithium-ion and lithium-polymer cells by providing a precise, regulated output to the battery. With its vast array of features, the ISL6291-1CRZ- T is the ideal power management device for a wide array of applications such as those in portable battery-powered electronics.

Applications

The ISL6291-1CRZ-T is a single dual-output linear battery charger that provides a precise, regulated output to the batteries, enabling efficient charging of lithium-ion and lithium-polymer cells. This device is ideal for use in industrial and consumer applications that require highly efficient battery charging such as laptops, tablets, smartphones, fitness equipment, robotic systems, and medical devices. Additionally, the ISL6291-1CRZ-T is suitable for applications where the charging power needs to be minimized while still providing efficient charging such as in automotive and automotive-adjacent systems, solar-powered systems, and energy harvesting solutions.

Features

The core feature of the ISL6291-1CRZ-T is its capability to provide a precise, regulated output to the battery, giving it the ability to efficiently charge lithium-ion and lithium-polymer cells. Additionally, the device features two voltage output channels that allow it to output up to 2A of DC current each, offering both linear and pulse charging. The battery regulation voltage level is independently programmable and adjustable on each of the two output channels making it easy to regulate and monitor the battery\'s charge status. Furthermore, the device includes thermal protection and undervoltage lockout to protect the batteries and the system from potential damage due to overcharging and other potential system issues. Additionally, the device includes an innovative "HV" mode that maximizes the output current for optimal charging performance.

Working Principle

The ISL6291-1CRZ-T is a single dual-output linear battery charger with a precise, regulated output. The device contains two voltage output channels, each providing up to 2A of DC current. The linear charging mode is always enabled by default. When the battery voltage reaches a predetermined level, the device automatically switches to the pulse charging mode, which is more efficient and helps to maintain a precise output voltage. The device also features an innovative "HV" mode, which reduces the current output if the voltage exceeds a predetermined level, thus improving the safety of the system and protecting the battery from overcharging. Furthermore, the device includes a separate thermal protection and undervoltage lockout, which protects the system from potential damage due to overcharging and other potential system issues. Additionally, the device has a wide operating temperature range, making it suitable for a variety of applications.

Conclusion

The ISL6291-1CRZ-T is a high-performance, single dual-output linear battery charger that is designed to maintain the efficient charging of lithium-ion and lithium-polymer cells. The device includes two voltage output channels, allowing it to output up to 2A of DC current each, with both linear and pulse charging capability. Additionally, the device includes innovative features such as thermal protection, undervoltage lockout and the "HV" mode that maximize the output current for optimal charging performance. The wide operating temperature range and multiple safety features make the ISL6291-1CRZ-T the ideal power management device for a wide array of applications.

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