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MCP73871-3CAI/ML - Microchip

Description: • Integrated System Load Sharing and Battery Charge Management - Simultaneously Power the System and Charge the Li-Ion Battery - Voltage Proportional Current Control (VPCC) ensures system load has priority over Li-Ion battery charge current - Low-Loss Power-Path Management with Ideal Diode Operation • Complete Linear Charge Management Controller - Integrated Pass Transistors - Integrated Current Sense - Integrated Reverse Discharge Protection - Selectable Input Power Sources: USB Port or AC-DC

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PCB Footprints
MCP73871-3CAI/ML - Microchip PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 20-Lead Plastic Quad Flat, No Lead Package(ML) - 4x4 mm Body [QFN]
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3D Models
MCP73871-3CAI/ML - Microchip  - 3D model - Quad Flat No-Lead - 20-Lead Plastic Quad Flat, No Lead Package(ML) - 4x4 mm Body [QFN]
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MCP73871-3CAI/ML Details

  • Manufacturer Part Number:

    MCP73871-3CAI/ML

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Pin Count:

    20

  • Manufacturer Package Code:

    QFN-20

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Factory Lead Time:

    6 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    8

  • Adjustable Threshold:

    YES

  • Analog IC - Other Type:

    LINEAR BATTERY CHARGER

  • JESD-30 Code:

    S-PQCC-N20

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC20,.16SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Supply Current-Max (Isup):

    3.75 mA

  • Supply Voltage-Max (Vsup):

    6 V

  • Supply Voltage-Min (Vsup):

    4.628 V

  • Supply Voltage-Nom (Vsup):

    5.35 V

  • Surface Mount:

    YES

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Threshold Voltage-Nom:

    +4.35V

  • Time@Peak Reflow Temperature-Max (s):

    40

  • Width:

    4 mm

MCP73871-3CAI/ML Frequently Asked Questions (FAQs)

  • The maximum charging current that can be set using the ISET pin is 1.5A. However, it's recommended to limit the charging current to 1A to ensure reliable operation and to prevent overheating.
  • The MCP73871-3CAI/ML has an internal over-voltage protection (OVP) circuit that monitors the input voltage and disconnects the input power if it exceeds 6.5V. This protects the device and the battery from damage due to over-voltage conditions.
  • No, the MCP73871-3CAI/ML is designed to charge a single lithium-ion battery. Charging multiple batteries in parallel would require a more complex charging circuit and is not recommended.
  • The STAT pin is a status output that indicates the charging status of the battery. It can be used to monitor the charging process and to detect when the battery is fully charged. The STAT pin is an open-drain output, so it requires an external pull-up resistor to VCC.
  • The MCP73871-3CAI/ML has an internal temperature monitoring circuit that monitors the battery temperature using an external thermistor (NTC). The device adjusts the charging current and voltage based on the battery temperature to prevent overheating or overcooling.

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MCP73871-3CAI/ML Overview

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About Microchip

Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th

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