MCP73871-3CCI/ML

Series:	--
Packaging:	Tube
Part Status:	Active
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Timer
Fault Protection:	Over Temperature
Charge Current - Max:	1.1A
Battery Pack Voltage:	4.35V
Voltage - Supply (Max):	6V
Interface:	USB
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	20-VFQFN Exposed Pad
Supplier Device Package:	20-QFN (4x4)
Base Part Number:	MCP73871

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MCP73871-3CCI/ML Application Field and Working Principle

PMIC - Battery Charger is one of the most versatile and widely used form of external electronic power supply. It is a type of power source that can provide reliable, portable and cost-effective power for various applications. The MCP73871-3CCI/ML is the latest addition to PMIC - Battery Charger series. It is a compact, low-cost, and high-efficiency single-cell, Li-ion charge manager. The MCP73871-3CCI/ML is designed to fit multiple single-cell Li-ion battery configurations, making it an ideal choice for consumer, healthcare, and industrial applications. It has an integrated charger, monitoring, and system control features, including automatic battery detection, charge status monitoring, safety timer, power-saving mode, and battery-protection functions. The MCP73871-3CCI/ML is equipped with a USB receptacle for communication with the host or end user enabling remote monitoring and control of the system. The MCP73871-3CCI/ML has integrated support for thermistor monitoring and USB data port enabling communication with the system host. The MCP73871-3CCI/ML increases system design flexibility by providing adjustable charging options. The MCP73871-3CCI/ML has three programmable charge currents (400/800/1200mA) that can be selected through I²C and configured to meet system requirements. It also provides flexible charge termination options, including charge-current-dependent (CC/CV), time-dependent (timer-out), temperature-dependent (temperature-out), and detection of charge-termination. It also has an External Sense Pin (ESP) provides the user a means to adjust the current sensing reference voltage. The MCP73871-3CCI/ML also features an internal regulation loop that allows the output voltage to be programmed up to 4.2V with 0.1V increments. The high precision of this charge controller circuit enables accurate output voltage control, reducing the complexity and cost of the external pass element. It also provides an adjustable pulse frequency modulation (PFM) for increased efficiency at both light and full load conditions. In summary, the MCP73871-3CCI/ML is the latest PMIC - Battery Charger series with high-efficiency, low cost, and small size. It provides an adjustable charge current, integrated charge status monitoring, safety timer, and adjustable pulse frequency modulation for improved efficiency. It also supports thermistor profile for temperature-aware charging and an external sense pin for having adjustable current sensing for accurate output voltage control. All of these features make the MCP73871-3CCI/ML an ideal choice for consumer, healthcare, and industrial applications.

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