MCP73855 Series

USB Li-Ion/Li-Polymer Battery Chargers w/Safety Timers

Catalog

USB Li-Ion/Li-Polymer Battery Chargers w/Safety Timers

Part	Supplier Device Package	Programmable Features	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Max)	Mounting Type	Number of Cells	Charge Current - Max [Max]	Battery Chemistry	Battery Pack Voltage	Package / Case	Current - Charging	Type	Utilized IC / Part	Contents	Function
Microchip Technology MCP73855T-I/MF	10-DFN (3x3)	Timer	85 °C	-40 °C	5.5 V	Surface Mount	1	475 mA	Lithium Ion/Polymer	4.2 V	10-VFDFN Exposed Pad	Constant - Programmable
Microchip Technology MCP73855EV													Power Management	MCP73855	Board(s)	Battery Charger

Catalog

USB Li-Ion/Li-Polymer Battery Chargers w/Safety Timers

Key Features

• * USB Compatible Charge Current Settings

• * Programmable Safety Charge Timer

• * Thermal Regulation

• * Automatic Re-Charge

• * Automatic End-of-Charge Control

• * Charge Status Indicator

• * Space-saving & High-power 3x3 DFN-10 Package

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

Description

The MCP73855 is a highly advanced linear charge management controller for use in space limited, high-performance applications. The MCP73855 integrates most of the external components (pass transistor, reverse blocking protection, current sensing) and combines high-accuracy constant voltage, constant current regulation, cell preconditioning, advanced safety timers, automatic charge termination, and charge status indication in a space-saving 10-pin, 3 x 3 DFN package. The MCP73855 is designed specifically for USB applications, adhering to all the specifications governing the USB power bus.