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MCP73842-820I/UN
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Product Detailed Parameters
- Description：IC BAT CNTRL LI-ION 1-2CL 10MSOP
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Battery Chemistry：Lithium Ion/Polymer
- Voltage - Supply (Max)：12V
- 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 ~ 2
- Current - Charging：-
- Programmable Features：Timer
- Fault Protection：Over Temperature
- Charge Current - Max：-
- Battery Pack Voltage：8.2V
- Interface：-
- Grade：-
- Qualification：-
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Overview
The MCP73842-820I/UN is a single-cell lithium-ion or lithium-polymer battery charge management controller manufactured by Microchip Technology. It operates within an input voltage range of 4.5 V to 12 V and provides a fixed output charging voltage of 8.241 V, indicating support for dual-series cell configurations despite being categorized as a single-channel device in some listings. The unit is housed in a 10-pin MSOP package with surface-mount installation. It functions across a temperature range of -40°C to +85°C.
Feature Summary
- Integrates charge safety monitoring and thermal management capabilities
- Supports lithium-ion and lithium-polymer battery chemistries
- Provides complete charge management control without external microcontrollers
Applications
- Portable electronic devices requiring dual-cell lithium battery charging
- Medical equipment utilizing protected lithium power sources
- Industrial handheld instruments needing robust charge management
Procurement Notes
Verify the specific suffix '820' against official Microchip datasheets to confirm the 8.241 V output specification, as this value typically corresponds to dual-series cells. Ensure the MSOP-10 package matches your PCB footprint requirements. Confirm RoHS compliance status through current manufacturer documentation before finalizing procurement orders.
Selection Notes
Select this component when designing systems that require integrated charge safety and thermal monitoring for lithium-based batteries. The wide input voltage range accommodates various power supply architectures. Consider the MSOP-10 package size constraints during layout planning. Validate compatibility with the target battery chemistry specifications provided in the official technical data.
Part Context
This part belongs to the MCP7384x series of charge management controllers from Microchip Technology. The series includes variants supporting different output voltages and package types. These controllers are designed for portable applications where space efficiency and battery protection are critical design parameters.
Replacement Considerations
The MCP73842T-820I/UN is a tape-and-reel variant of the same functional device. Other series members like MCP73842-840I/UN offer different output voltages. Verify pinout and electrical specifications before substituting any alternative part numbers.
