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Home Product MCP73842T-820I/UN Single-Cell Li-Ion Charger IC | Microchip MCP7384x Series | USB-Powered Battery Management
MCP73842T-820I/UN

MCP73842T-820I/UN Single-Cell Li-Ion Charger IC | Microchip MCP7384x Series | USB-Powered Battery Management

MCP73842T-820I/UN datasheet
Li-ion battery charger IC
Microchip charge controller IC
MCP73842T-820I/UN
MCP73842T-820I/UN datasheet details a Microchip charge controller IC for single-cell Li-ion battery charging, integrating safety features, thermal regulation, and compact design for portable electronics.
Categories:Electronic components
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Product Description

The MCP73842T-820I/UN from Microchip is a Li-ion battery charger IC designed for single-cell applications, supporting up to 820mA charging current. Operating at 4.5V to 6V input, it integrates critical charging phases (preconditioning, constant current/voltage) with temperature monitoring and safety features. This charge controller IC connects directly to a Li-ion battery module, featuring a PROG pin for current adjustment via external resistor. With a -40°C to +85°C operating range, it suits portable electronics, medical devices, and industrial systems. Key advantages include compact design, low external component count, and built-in protection (overvoltage, thermal shutdown). Limitations include fixed voltage regulation (4.2V typical) and no integrated communication interface. Refer to the MCP73842T-820I/UN datasheet for detailed charge termination and fault recovery parameters. Battery capacity depends on system configuration.
Parameter Specification
Device Name MCP73842T-820I/UN
Function Li-ion battery charger IC
Manufacturer Microchip charge controller IC
Input Voltage Range 3.75V to 6.0V
Charge Voltage 4.2V ±0.5%
Max Charge Current 500mA
Charge Termination Voltage Threshold + C/10
Operating Temp Range -40°C to +85°C
Package 10-UDFN (2x3mm)
Protection Features Over-Temperature, Reverse Discharge, Short-Circuit
Status Indicators Charge Status (STAT) and Power Good (PG)
Battery Type Single-Cell Li-ion/Polymer
question:Does the company have a professional product selection engineering team?
answer:Yes, we have a dedicated team of engineers specializing in product selection and development.
question:Can shipments apply for low-value declaration?
answer:Yes, we assist with low-value declaration processes for eligible shipments as needed.
question:Does the company provide upgraded or alternative product models?
answer:Yes, we offer upgraded or alternative models based on availability and client requirements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Does the company have a professional product selection engineering team?
answer:Yes, we have a dedicated team of engineers specializing in product selection and development.
question:Can shipments apply for low-value declaration?
answer:Yes, we assist with low-value declaration processes for eligible shipments as needed.
question:Does the company provide upgraded or alternative product models?
answer:Yes, we offer upgraded or alternative models based on availability and client requirements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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