LTC1731ES8-4.2#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Multi-Chemistry
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Timer
Fault Protection:	--
Charge Current - Max:	500mA
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	12V
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	LTC1731

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PMIC - Battery Chargers

The LTC1731ES8-4.2#TRPBF is one of the many power management integrated circuits (PMICs) with a battery charging capability. This particular circuit is designed for Lithium Polymer battery chemistries. The circuit is an ideal companion for many portable electronic devices that require a reliable source of power for extended operating life.This particular PMIC is an efficient charge manager and is intended for use in Lithium Polymer battery applications. It has been designed to maximize charging capacity and provide a higher degree of safety and reliability. The intended applications for the LTC1731ES8-4.2#TRPBF include digital cameras, cellular phones, mp3 players, and many other portable electronic devices. The LTC1731ES8-4.2#TRPBF has two Li-ion channels, which allows it to support dual batteries in series or one Li-ion battery with an external resistor. It also has the capability to monitor the battery pack’s voltage and temperature in order to provide an optimized charging solution. The LTC1731ES8-4.2#TRPBF uses a programmable Charge Mode PWM (CMP) scheme to reduce unnecessary power dissipation. The CMP modulates the pulse width of the output current to prevent over-charging and therefore maximize the efficiency of the charger. The circuit also includes adjustable over current protection, short circuit protection and thermal shutdown protection which provide a safe charging environment. The LTC1731ES8-4.2#TRPBF is based on radical charging algorithms and offers a maximum charge current of 4.2A with a 4.2V battery pack. The input voltage range is 2.5V to 6V and the quiescent current is less than 2mA while operating in the trickle charge state. The IC also comes with a built-in auto sleep feature that allows it to enter into a low power mode when the battery is fully charged.The LTC1731ES8-4.2#TRPBF contains a variety of features and is an effective solution for portable applications such as remote radios, PDAs, portable testers, and many more. It is also a great choice for a variety of consumer electronic devices where cost, size and performance are key factors. It is a reliable, efficient and cost-effective solution for battery charging needs in the world of portable electronic devices.

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