MCP73834-NVI/MF

独立线性锂离子/锂聚合物充电管理控制器 Stand-Alone Linear Li-Ion / Li-Polymer Charge Management Controller

Description

The MCP73833/4 is a highly advanced linear charge management controller for use in space-limited, cost sensitive applications. The MCP73833/4 is available in a 10-Lead, 3 mm x 3 mm DFN package or a 10-Lead, MSOP package. Along with its small physical size, the low number of external components required makes the MCP73833/4 ideally suited for portable applications. For applications charging from a USB port, the MCP73833/4 can adhere to all the specifications governing the USB power bus.

Features

• Complete Linear Charge Management Controller

\- Integrated Pass Transistor

\- Integrated Current Sense

\- Integrated Reverse Discharge Protection

• Constant Current / Constant Voltage Operation with Thermal Regulation

• High Accuracy Preset Voltage Regulation:

\- 4.2V, 4.35V, 4.4V, or 4.5V, +0.75%

• Programmable Charge Current: 1A Maximum

• Preconditioning of Deeply Depleted Cells

\- Selectable Current Ratio

\- Selectable Voltage Threshold

• Automatic End-of-Charge Control

\- Selectable Current Threshold

\- Selectable Safety Time Period

• Automatic Recharge

\- Selectable Voltage Threshold

• Two Charge Status Outputs

• Cell Temperature Monitor

• Low-Dropout Linear Regulator Mode

• Automatic Power-Down when Input Power Removed

• Under Voltage Lockout

• Numerous Selectable Options Available for a Variety of Applications:

\- Refer to Section 1.0 “Electrical Characteristics”for Selectable Options

\- Refer to the Product Identification System for Standard Options

• Available Packages:

\- DFN-10 3 mm x 3 mm

\- MSOP-10

Applications

• Lithium-Ion / Lithium-Polymer Battery Chargers

• Personal Data Assistants

• Cellular Telephones

• Digital Cameras

• MP3 Players

• Bluetooth Headsets

• USB Chargers