Microchips MCP73831T-2ATI/OT battery charge controllers are designed for single cell Li-Lion and Li-Polymer batteries. They're greatly advanced linear controllers and exceptionally great in space limited and cost effective. Included on the device is integrated pass transistor, integrated current sensing and reverse discharge protection. All of this is packed onto a 5-pin, SOT-23 package for minimal space use.
MCP73831T-2ATI/OT uses a constant current charge algorithm with selectable preconditioning and charge termination.
- Small SOT-23 package and cost effective
- High accuracy pre-set voltage regulation - ± 0.75%
- Four voltage regulation options – 4.2V, 4.35V, 4.4V, 4.5V
- Programmable charge current – 15mA up to 500mA
- Charge status can output to LEDs
- Chip integrated thermal regulation
- Under voltage lockout
- Lithium Ion and Polymer battery chargers
- Bluetooth headsets
- Digital cameras
- Personal data assistants
- Cellular telephones
- MP3 players
- USB chargers
Feature
- High accuracy preset output voltage regulation (+/-0.75%)
- Output voltage options include 4.2V, 4.35V, 4.4V and 4.5V
- User-programmable charge current
- Charge status output can directly drive LEDs
- On-chip thermal regulation
- Preconditioning and end-of-charge ratio options
- Under-voltage lockout
