ISL6291-2CR-T

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Part Status:	Obsolete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:	4.2V
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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ISL6291-2CR-T is a 1.5A max output current, dual-channel, high-efficiency synchronous battery charger with an integrated step-up switch designed for use in portable devices with lithium-ion and LiFePO4 battery configurations. This product can be used in wide range of applications such as mobile phone, tablet, digital camera, etc. The ISL6291-2CR-T provides high-efficiency operation with a wide input voltage range and adjustable battery charging current for charging a single cell or two-cell Li-Ion battery. It also includes internal circuit protection, full protection against short circuit, overcharge and overcurrent.The ISL6291-2CR-T provides an integrated dual-channel step-up switch with adjustable output voltage. The integrated low dropout regulator provides a wide input voltage range from 3V to 18V and output voltage can be set up to 16V. The board also provides a buck regulator for system supply that can be adjusted to output voltage as low as 1.2V and up to 5.5V.The ISL6291-2CR-T has an integrated step-up switch that enables it to switch rapidly and accurately. It also provides a wide input and output voltage range with adjustable current, allowing the board to charge Li-ion and LiFePO4 batteries, while simultaneously providing a regulated voltage supply to all other system circuitry.The ISL6291-2CR-T also provides multiple protection features such as an adjustable soft-start, under voltage lockout, input over voltage protection, output over voltage protection, open circuit protection, and output over-current protection. The board also provides an output overvoltage protection mechanism that monitors and shuts down the charger if the voltage exceeds the maximum set value. It also provides a thermal monitoring circuit to reduce its power consumption when the board’s temperature increases due to extended usage.The ISL6291-2CR-T includes an adjustable timer that can be used to control the charge-termination time. The timer can be set for up to 16.4 hours and has a resolution of 0.2 seconds, ensuring that the battery is charged correctly and safely. It also features an automatic recharge mode that will restart the charging process after the timer has expired and a current limit feature that limits the peak charging current to the programmed maximum.Overall, the ISL6291-2CR-T is a high-efficiency and feature-packed dual-channel battery charger with an integrated step-up switch that makes it ideal for use in portable devices. It provides up to 1.5A maximum output current, a wide input voltage range, and adjustable battery charging current for charging single or two-cell Li-Ion batteries, as well as a variety of protection features. It is a great choice for those looking for a reliable, efficient, and cost-effective battery charger.

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