MCP73853 Series

USB Li-Ion/Li-Polymer Battery Charger with Safety Timers & Thermal Monitor

Catalog

USB Li-Ion/Li-Polymer Battery Charger with Safety Timers & Thermal Monitor

Part	Current - Charging	Battery Pack Voltage	Mounting Type	Charge Current - Max [Max]	Number of Cells	Supplier Device Package	Battery Chemistry	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Voltage - Supply (Max)	Programmable Features
Microchip Technology MCP73853-I/ML	Constant - Programmable	4.2 V	Surface Mount	475 mA	1	16-QFN (4x4)	Lithium Ion/Polymer	85 °C	-40 °C	16-VQFN Exposed Pad	5.5 V	Timer
Microchip Technology MCP73853T-I/ML	Constant - Programmable	4.2 V	Surface Mount	475 mA	1	16-QFN (4x4)	Lithium Ion/Polymer	85 °C	-40 °C	16-VQFN Exposed Pad	5.5 V	Timer

Catalog

USB Li-Ion/Li-Polymer Battery Charger with Safety Timers & Thermal Monitor

Key Features

• * USB Compatible Charge Current Settings

• * Programmable Safety Charge Timer

• * Temperature Monitor

• * Thermal Regulation

• * Automatic Re-Charge

• * Automatic End-of-Charge Control

• * Status & Fault Indicators

• * –40°C to +85°C Ambient Operating Temperature Range

Description

The MCP73853 is a highly advanced linear charge management controller for use in space limited, high-performance applications. The MCP73853 integrates most of the external components (pass transistor, reverse blocking protection, current sensing) and combines high-accuracy constant voltage, constant current regulation, cell preconditioning, cell temperature monitoring, advanced safety timers, automatic charge termination, and charge status and fault indication in a space-saving 16-pin, 4 x 4 QFN package. The MCP73853 is designed specifically for USB applications, adhering to all the specifications governing the USB power bus.