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MCP73837-FJI/MF
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Product Detailed Parameters
- Description：IC BATT CHG LI-ION 1CELL 10DFN
- 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-VFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
- Number of Cells：1
- Current - Charging：Constant - Programmable
- Programmable Features：-
- Fault Protection：Over Voltage
- Charge Current - Max：1.1A
- Battery Pack Voltage：4.2V
- Interface：USB
- Grade：-
- Qualification：-
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Overview
The MCP73837-FJI/MF is a linear Li-ion/Li-Polymer battery charger from Microchip Technology, housed in a DFN-10 package. It supports USB or DC input with an operating voltage range of 3.75 V to 6 V. The device provides a regulated output voltage of 4.2 V and delivers up to 1.2 A of charge current. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates auto-switching between USB and DC power sources for seamless input selection
- Supports standard charging profiles for lithium-ion and lithium-polymer cells
- Includes thermal regulation to manage heat dissipation during high-current operation
Applications
- Portable electronic devices requiring single-cell lithium battery management
- USB-powered consumer electronics with integrated rechargeable batteries
- Industrial handheld equipment utilizing lithium-ion power sources
Procurement Notes
Verify the specific suffix MF indicates tube packaging when sourcing. Confirm the FJI variant matches required thermal and electrical specifications against official datasheets. Ensure compatibility with existing PCB footprints for the DFN-10 package before procurement.
Selection Notes
Select this component for designs requiring automatic source switching between USB and external DC supplies. It is suitable for applications needing a compact DFN-10 footprint. Verify that the 1.2 A output current meets system requirements and that the 4.2 V termination voltage aligns with the target battery chemistry.
Part Context
This part belongs to the MCP7383x series of charge management controllers designed for single-cell lithium batteries. It offers a compact solution for portable applications, integrating necessary protection features within a small surface-mount package to minimize board space usage.
Replacement Considerations
Check the MCP73838T-FJI/UN for MSOP packaging alternatives. Review MCP73833 variants for similar functionality if different pinouts are acceptable. Verify exact parameter matching for any cross-references.
