Описание
The MCP73853 device is highly advanced linear charge management controllers for use in spacelimited, cost-sensitive applications. The MCP73853 combines high-accuracy constant-voltage, constantcurrent regulation, cell preconditioning, cell temperature monitoring, advanced safety timers, automatic charge termination, internal current sensing, reverse blocking protection and charge status and fault indication in a space-saving 16-lead, 4 x 4 QFN package. The MCP73855 employs all the features of the MCP73853, with the exception of the cell temperature monitor and one status output. The MCP73855 is offered in a space-saving 10-lead, 3 x 3 DFN package. The MCP73853 and MCP73855 are designed specifically for USB applications, adhering to all the specifications governing the USB power bus. The MCP7385X devices provide two selectable voltage regulation options (4.1V or 4.2V) for use with either coke or graphite anodes. The MCP7385X devices provide complete, fullyfunctional, charge management solutions, operating with an input voltage range of 4.5V to 5.5V. The MCP7385X devices are fully specified over the ambient temperature range of -40°C to +85°C.
- Linear Charge Management Controllers
- Integrated Pass Transistor
- Integrated Current Sense
- Reverse Blocking Protection
- High-Accuracy Preset Voltage Regulation: + 0.5%
- Two Selectable Voltage Regulation Options:
- 4.1V, 4.2V
- Programmable Charge Current
- USB Compatible Charge Current Settings
- Programmable Safety Charge Timers
- Preconditioning of Deeply Depleted Cells
- Automatic End-of-Charge Control
- Optional Continuous Cell Temperature Monitoring:
- MCP73853
- Charge Status Output for Direct LED Drive
- Fault Output for Direct LED Drive
- MCP73853
- Automatic Power-Down
- Thermal Regulation
- Temperature Range: -40°C to +85°C
- Packaging:
- 16-Lead, 4×4 mm QFN (MCP73853)
