BQ24701PW

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Battery Chemistry:	Multi-Chemistry
Number of Cells:	--
Current - Charging:	--
Programmable Features:	--
Fault Protection:	--
Charge Current - Max:	--
Battery Pack Voltage:	--
Voltage - Supply (Max):	20V
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	24-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	24-TSSOP
Base Part Number:	BQ24701

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BQ24701PW is a high power, low-quiescent-current (LQC) and current-mode, synchronous buck battery charger. It provides a complete charging solution for applications like smartphones, tablets and more, and provides a full host of features and functionality required for safe, efficient and fast charging. With both USB Type-C and USB Power Delivery support, it ensures that devices can be charged quickly, safely, and efficiently.This chip supports both Li+ and Li-ION batteries up to 19.2V and the input voltage range is 4.5V to 28V. It is also power efficient as no power is wasted in the conversion process. Additionally, it offers a range of protection features such as over-voltage and over-temperature protections as well as over-current and under-voltage protection to ensure the safe charging of the device. The BQ24701PW\'s applications are wide and varied, ranging from portable energy storage systems to automotive applications and from medical devices to smart home and wearables. It can be used in these fields and more to provide a stable charging source for devices and avoid any possible dangers and data loss caused by unstable power supply.The working principle of the BQ24701PW is based on a synchronous buck converter, with a single chip architecture that combines all the major elements for a battery charging system such as current sensing, voltage sensing, real-time monitoring and temperature sensing. It is composed of components such as an inductor, an N-Channel Power MOSFET, a voltage detection pin, a P-Channel MOSFET and a synchronous rectifier. It has a constant-voltage / constant-current charging control and efficient power conversion. When the voltage is higher than a predetermined voltage, the circuit is switched to constant current mode. When the battery is almost charging, the current is reduced and the voltage is raised to constant voltage mode. In constant voltage mode, the output voltage is kept at a steady voltage level and the current will decline until it reaches a preset lower limit. The charge termination will occur when the battery is nearly full.The BQ24701PW chip is designed to work with a variety of off-the-shelf battery packs for the safety and best protection of the device. It can be used to power a variety of devices, such as: tablets, smartphones, and automotive batteries. It is also compatible with several different smart charging algorithms such as Battery Fuel Gauge and Battery Monitor ICs. With its wide range of features, the BQ24701PW is an excellent option for a wide variety of applications. Its small footprint, low quiescent current and various protection functions make it an ideal choice for battery charging operations in the modern world. It can be used in both safety and efficiency applications, ensuring that devices are charged quickly and safely.

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