Microchip Technology MCP73832T-3ACI/MC Single Cell, Fully Integrated Li-Ion/Li-Polymer Charge Management Controller

The MCP73832T-3ACI/MC is a highly efficient, single-cell, fully integrated lithium-ion/lithium-polymer charge management controller, designed by Microchip Technology for space-limited and cost-sensitive applications. This miniature charge management solution is suitable for a wide range of portable electronic devices such as Bluetooth headsets, MP3 players, wearable technology, and other gadgets that rely on rechargeable batteries.

With its advanced linear charge management capabilities, the MCP73832T-3ACI/MC provides a simple and efficient way to charge single-cell Li-Ion/Li-Polymer batteries. The device incorporates a constant-current/constant-voltage charge algorithm with selectable preconditioning and charge termination. The charge voltage is fixed at 4.2V with a tight regulation tolerance of ±0.5%, ensuring the battery is charged accurately and safely, maximizing its lifespan.

The MCP73832T-3ACI/MC operates with an input voltage range of 3.75V to 6.0V, which makes it compatible with a variety of power sources, from USB ports to wall adapters. The device also features an onboard pass transistor, current sense, and reverse discharge protection, which reduces the number of external components required and simplifies the overall design.

For enhanced safety, the MCP73832T-3ACI/MC includes thermal regulation, which throttles the charge current to prevent the device from overheating during operation. Additionally, the charge management controller has an auto-recharge feature that initiates a new charge cycle if the battery voltage falls below a set threshold, ensuring the battery remains fully charged over time.

Available in a tiny 5-lead SOT-23 package, the MCP73832T-3ACI/MC is an ideal solution for portable applications where space is at a premium. The small footprint of the device, combined with its ease of use and comprehensive set of features, makes it a popular choice for designers looking to implement efficient battery charging in their products without incurring significant development costs or delays.

Overall, the Microchip Technology MCP73832T-3ACI/MC charge management controller is a reliable and cost-effective choice for maintaining the health and longevity of lithium-ion and lithium-polymer batteries in single-cell applications.