Introduces the features and characteristics of MCP73833/4 lithium battery charger, including optional options, application scenarios, etc.
The MCP73833/4 is a stand‑alone linear charge‑management controller designed for space‑limited, cost‑sensitive applications such as USB chargers, portable devices, and Bluetooth headsets. It integrates a pass transistor, current sense, reverse‑discharge protection, and a low‑dropout regulator, providing constant‑current/constant‑voltage charging with thermal regulation.
The document details electrical characteristics, package options, temperature specifications, and typical performance curves, along with application notes and code‑protection information. It also includes worldwide sales and service contacts for Microchip.
| Maximum programmable charge current | 1 A |
|---|---|
| Supply voltage (Vop) | 3.75 V |
| Maximum junction temperature | Internally limited |
| Storage temperature range | -65 °C to +150 °C |
| Specified temperature range | -40 °C to +85 °C |
| Operating temperature range | -40 °C to +125 °C |
| Package type (DFN) | 3 mm × 3 mm DFN‑10 |
The controller can be programmed for a maximum charge current of 1 A.
Four preset voltage options are provided: 4.20 V, 4.35 V, 4.40 V, or 4.50 V.
It is offered in a 3 mm × 3 mm DFN‑10 package and an MSOP‑10 package.
The device operates from –40 °C to +125 °C, with a storage range of –65 °C to +150 °C.