MCP73842
The MCP73842 combines high accuracy constant-voltage (0.5% max), constant-current regulation, cell preconditioning, cell temperature monitoring, advanced safety timers, automatic charge termination, and charge status indication in a space saving MSOP-10 package. The device provides a complete, fully functional, stand-alone charge management solution for applications utilizing dual series cell Lithium-Ion or Lithium-Polymer battery packs. Two preset voltage regulation options are available, 8.2V and 8.4V, for use with either coke or graphite anodes. The MCP73842 operates with an input voltage range of 8.7V to 12V and is fully specified over the ambient temperature range of -40°C to +85°C.
Features- Safety Charge Timers
- Automatic Charge Termination
- Automatic Recharge
- Temperature Monitor
- Charge Status Indicator
- High Accuracy Voltage Regulation: 0.5% (Max)
- Automatic Preconditioning of Deeply Depleted Cells
- Shutdown Current: 0.25µA (Typical)
- No Inductor Required
- Programmable Charge Current
- Automatic Power-Down When Input Power Removed
- –40°C to +85°C Ambient Operating Temperature Range
| Parameter|
Parameter Name
Value
| Value | |
Linear Mode
Yes
|
Yes
| |
# of Cells
2
|
2
| |
Int/Ext FET
Ext
|
Ext
| |
Vcc Range (V)
8.7 to 12
|
8.7 to 12
| |
Voltage Regulation Accuracy (%)
0.5
|
0.5
| |
Temperature Monitor
Yes
|
Yes
| |
Charge Safety Timers
Yes
|
Yes
|
|
Documents
相关开发工具
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| MCP73842-820I/UN | 0.023200 | 0.060000 | 10 | MSOP | 3x3mm | Matte Tin | e3 |  |  |
| MCP73842-840I/UN | 0.023200 | 0.060000 | 10 | MSOP | 3x3mm | Matte Tin | e3 | | |
| MCP73842T-820I/UN | 0.023200 | 0.200000 | 10 | MSOP | 3x3mm | Matte Tin | e3 | | |
| MCP73842T-840I/UN | 0.023200 | 0.200000 | 10 | MSOP | 3x3mm | Matte Tin | e3 | | |
