The MCP73828-4.2VUA is a high-quality, miniaturized single-cell, fully integrated lithium-ion/lithium-polymer charge management controller from Microchip Technology. This advanced product is designed for space-constrained and cost-sensitive applications, providing a compact, efficient, and reliable solution for battery charging and power management.

With its small footprint and advanced features, the MCP73828-4.2VUA is perfect for portable electronic devices such as digital cameras, Bluetooth headsets, MP3 players, and various other consumer electronics. The device operates at a fixed charge voltage of 4.2V, which is optimal for single-cell lithium-ion or lithium-polymer batteries.

Key Features:

• Charge Voltage: Precisely regulated output voltage of 4.2V, ensuring the battery is safely charged to its maximum capacity without overcharging.
• Charge Current: Programmable charge current allows for design flexibility and compatibility with a wide range of battery sizes.
• Integrated Pass Transistor: The built-in pass transistor streamlines the design process and reduces external component count.
• Thermal Regulation: This feature protects the IC during high power or high ambient conditions by automatically reducing charge current.
• Automatic Recharge: The device initiates a new charge cycle when the battery voltage falls below an internal threshold, keeping the battery fully charged.
• Charge Status Output: An LED status output indicates the charge cycle progress, providing visual feedback.
• Protection Features: Includes over-temperature protection, under-voltage lockout, and automatic shutdown to ensure safe operation.
• Package: Available in a compact 8-Lead MSOP (Micro Small Outline Package), ideal for space-constrained applications.

The MCP73828-4.2VUA leverages Microchip's proven technology to deliver a high-performance charging solution. Its ease of integration and comprehensive suite of safety features make it a go-to choice for designers looking to enhance the performance and reliability of their portable applications.