Microchip Technology MCP73871T-3CCI/ML

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series
Packaging Tape & Reel (TR) |
Battery Chemistry Lithium Ion/Polymer
Number of Cells 1
Current - Charging Constant - Programmable
Programmable Features Timer
Fault Protection Over Temperature
Charge Current - Max 1.1A
Battery Pack Voltage 4.35V
Voltage - Supply (Max) 6V
Interface USB
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 20-VFQFN Exposed Pad
Supplier Device Package 20-QFN (4x4)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MCP73871T-3CCI/ML is a USB interface charge management controller for single-cell Lithium Ion/Polymer batteries. It supports a charge current up to 1.1A and regulates the battery voltage to 4.35V, making it suitable for high-voltage Li-Ion cells. Housed in a 20-VFQFN package, it includes over-temperature protection and operates from -40°C to 85°C.

  • High-Voltage Cell Support: Regulates to 4.35V, enabling use with high-energy-density Li-Ion batteries.
  • USB Interface: Simplifies power management with a built-in USB interface.
  • Efficient Charging: Provides up to 1.1A charge current for faster charging cycles.
  • Thermal Safety: Includes over-temperature protection to ensure safe operation.

High-Voltage Li-Ion Batteries

Specifically designed for charging 4.35V high-voltage Lithium Ion/Polymer cells, maximizing energy density in portable devices.

Smartphones & Tablets

Enables faster charging and higher capacity utilization in modern smartphones and tablets that use 4.35V battery technology.

Drones & RC Hobby Devices

Provides a reliable charging solution for high-performance Li-Ion batteries used in drones and remote-controlled vehicles.

Portable Power Banks

Used in power banks to charge internal 4.35V Li-Ion cells efficiently via USB input.

Wearable Technology

Ideal for compact wearables that require high energy density and benefit from the 4.35V charge voltage.

Q: What battery chemistry is supported?
A: This charger is for Lithium Ion/Polymer batteries.
Q: How many cells can it charge?
A: It is designed for a single-cell (1) battery pack.
Q: What is the maximum charge current?
A: The maximum charge current is 1.1A.
Q: What is the battery regulation voltage?
A: The battery voltage is regulated to 4.35V.
Q: Does it have a USB interface?
A: Yes, it features a USB interface.
Q: What protection does it offer?
A: It includes Over Temperature protection.
Base Product Number : MCP73871
1 Cell 1.1A 4.35V Battery Charger Lithium Ion/Polymer Microchip USB Battery Charger VFQFN-20
Q: What battery chemistry is supported?
A: This charger is for Lithium Ion/Polymer batteries.
Q: How many cells can it charge?
A: It is designed for a single-cell (1) battery pack.
Q: What is the maximum charge current?
A: The maximum charge current is 1.1A.
Q: What is the battery regulation voltage?
A: The battery voltage is regulated to 4.35V.
Q: Does it have a USB interface?
A: Yes, it features a USB interface.
Q: What protection does it offer?
A: It includes Over Temperature protection.