Summary
The MCP73871 Demo Board with Voltage Proportional Current Control is designed to demonstrate Microchip's stand-alone linear Li-Ion battery charger with system power path and load sharing management control solution. The MCP73871 integrates the required elements to meet design challenges when developing new Li-Ion / Li-Polymer batteries powered products.
The MCP73871 requires minimum external components to power the system load and charge single cell Li-Ion batteries independently. When input power is absent or insufficient, the Li-Ion battery becomes the primary power source and supports the required system load current. The MCP73871 Demo Board with Voltage Proportional Current Control feature added is developed to assist engineers in reducing product design cycle and time by utilizing Microchip’s favorite stand-alone Li-Ion battery charger and system load sharing management controller.
The MCP73871 requires minimum external components to power the system load and charge single cell Li-Ion batteries independently. When input power is absent or insufficient, the Li-Ion battery becomes the primary power source and supports the required system load current. The MCP73871 Demo Board with Voltage Proportional Current Control feature added is developed to assist engineers in reducing product design cycle and time by utilizing Microchip’s favorite stand-alone Li-Ion battery charger and system load sharing management controller.
Specifications
| Manufacturer | Microchip Technology |
|---|---|
| Category | Power Management |
| Sub-Category | Battery Chargers |
| Eval Board Part Number | MCP73871DM-VPCC-ND |
| Eval Board Supplier | Microchip Technology |
| Eval Board |
Normally In Stock
|
| Cell Type |
Lithium Ion, Li-Ion
Lithium Polymer, Li-Pol |
| Configuration |
1 Cell (Li-Ion)
|
| Voltage In |
4.4 ~ 6 V
|
| Voltage Out |
4.2 V
|
| Current Out |
Up to 1 A
|
| Features |
Auto Off
Auto Re-Charge Cell Preconditioning Cell Temperature Monitoring Current Limit (Adj. or Fixed) Fault Indication Low Battery Warning Power Good Output Thermal Protection Under Voltage Protection, Brown-Out |
| Quiescent Current [Typical] |
180 µA
|
| Sleep Mode Current [Typical] |
28 uA
|
| Component Count + Extras |
16 + 14
|
| Application / Target Market |
Audio: MP3 Players
Cell Phones Digital Cameras Medical Portable Devices RF: BlueTooth Headsets |
| Design Author |
Microchip Technology
|
| Main I.C. Base Part |
MCP73871
|
| Quiescent Current [Maximum] |
300 µA
|
| Sleep Mode Current [Maximum] |
50 µA
|
| Date Created By Author | 2009-11 |
| Date Added To Library | 2013-01 |
