LP3947ISD-51/NOPB

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Lithium-Ion
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	--
Fault Protection:	Over Voltage
Charge Current - Max:	750mA
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	6V
Interface:	I²C, USB
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	14-WFDFN Exposed Pad
Supplier Device Package:	14-WSON (4x4)
Base Part Number:	LP3947

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LP3947ISD-51/NOPB application field and working principlePMIC – Battery Chargers are used in a variety of consumer electronics, automotive, industrial, and medical applications. The LP3947ISD-51/NOPB is a high-precision single-cell Li-Ion linear battery charger. It offers a wide range of features and flexibility for use in a variety of applications.The LP3947ISD-51/NOPB is capable of providing up to 1.5A charging current for battery sizes over 900mAh, and it offers a very accurate current regulation. It also provides input over voltage protection, output over voltage protection, reverse current blocking, battery discharge protection, as well as temperature and over current protection. The LP3947ISD-51/NOPB operates with an input voltage range of 2.5V to 6.5V and an upper accuracy of 0.5%. It also operates with an adjustable charge voltage of 3.6V or 4.2V, which can be adjusted via two resistors. The LP3947ISD-51/NOPB offers a high accuracy of +/- 0.5%, which is ideal for Li-Ion and Li-Polymer batteries. The LP3947ISD-51/NOPB utilizes a constant-current, constant-voltage (CC/CV) charging algorithm. During the CC stage, the charger monitors the battery voltage to maintain a constant charging current until it reaches the full-charge voltage. Once the target voltage is reached, the charger automatically changes from the CC stage to the CV stage. During the CV stage, the charger holds a constant voltage until the current drops to a preset level. The LP3947ISD-51/NOPB offers a variety of features that make it an ideal choice for a wide range of applications. The LP3947ISD-51/NOPB features built-in safety features to protect against overloading, short-circuiting, and overcharging of the battery. It also features reverse current protection, so the battery will not be drained when the charger is disconnected. The charger also monitors the battery voltage and temperature to ensure the battery is charging properly. Finally, the charger offers a fast charge profile that is designed to quickly bring the battery back to full charge capacity. The LP3947ISD-51/NOPB is highly flexible and can be used in a variety of applications including portable electronics, automotive, and industrial applications. Its versatility and versatility make it an ideal choice for a variety of applications. In conclusion, the LP3947ISD-51/NOPB is a high-precision, single-cell Li-Ion linear battery charger. It offers a wide range of features, such as adjustable charge voltage, fast charge profile, reverse current protection, temperature and over current protection, and high accuracy. The LP3947ISD-51/NOPB is ideal for a wide range of applications, such as portable electronics, automotive, and industrial applications.

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