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MCP73837-NVI/UN
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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 1CELL 10MSOP
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Battery Chemistry：Lithium Ion/Polymer
- Voltage - Supply (Max)：6V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-MSOP
- Number of Cells：1
- Current - Charging：Constant - Programmable
- Programmable Features：-
- Fault Protection：Over Voltage
- Charge Current - Max：1.1A
- Battery Pack Voltage：4.35V
- Interface：USB
- Grade：-
- Qualification：-
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Overview
The MCP73837-NVI/UN is a standalone Li-Ion/Li-Polymer battery charge management controller featuring autonomous AC-adapter or USB-port source selection. It supports input voltages from 3.75 V to 6 V and delivers up to 1.2 A output current with a regulated voltage of 4.2 V. The device operates within a temperature range of -40°C to +85°C and is housed in an MSOP package.
Feature Summary
- Autonomous power source selection between AC adapter and USB port
- Integrated linear charge management for single-cell batteries
- Supports high-current charging profiles up to 1.2 A
Applications
- Portable electronic devices requiring automatic power source detection
- USB-powered consumer electronics
- Battery management systems for lithium-ion and lithium-polymer cells
Procurement Notes
Verify the specific suffix 'NVI' against official Microchip documentation to confirm pinout and feature variations compared to standard variants. Ensure the MSOP package type matches the target PCB footprint. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.
Selection Notes
Select this component when autonomous switching between USB and wall adapter inputs is required without external logic. It is suitable for applications needing integrated current sensing and reverse blocking protection. Compare against the MCP73838 if higher current handling or different packaging options are necessary for the specific design constraints.
Part Context
This part belongs to the MCP7383x series of charge management controllers designed for space-limited applications. It integrates pass transistors and current sense resistors, reducing external component count. The series is optimized for USB compatibility and includes thermal regulation features to ensure safe operation during charging cycles.
Replacement Considerations
The MCP73838 is a related variant within the same family. Verify functional equivalence regarding input voltage ranges and output current capabilities before substitution. Check package dimensions and pin configurations to ensure mechanical compatibility.
