• Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
    natarius
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
    jharwinbarrozo
    20.5M
  • Net Portal
    Net Portal
    A net identifier used to create connectivity to other Net Portal with the same designator. #portal
    jharwinbarrozo
    43.0M
  • Power Net Portal
    Power Net Portal
    Power net portal is a special schematic object used to define a power or ground net. Power ports allow you to conveniently indicate a power net at any location in the design. Power nets of the same designator automatically connect throughout your design #portal #power
    jharwinbarrozo
    11.4M
  • Generic Resistor
    Generic Resistor
    A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
    jharwinbarrozo
    1.5M
  • Generic Inductor
    Generic Inductor
    A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
    jharwinbarrozo
    14.2k
  • 875105359001
    875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
    jharwinbarrozo
    1.2M
  • CTL1206FYW1T
    CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
    jharwinbarrozo
    1.1M
  • 1070TR
    1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink
    jharwinbarrozo
    700.5k
list all ICs and the decoupling capacitors attached to each. Ensure to include a...
xplor

xplor

@copilot list all ICs and the decoupling capacitors attached to each. Ensure to include all ICs present in the design, including digital ICs, power converters, LDOs, etc. For every IC, clearly state:

  • What power net the decoupling capacitors are attached to. What is the stated voltage of that net.

  • The voltage rating and value of the attached decoupling capacitors.

  • Signal with the expression “[WARNING]” if any of the following conditions are met: no decoupling capacitors are attached; the voltage of the power net is higher than the voltage rating of the capacitor; No voltage range was stated for the capacitor. Give a separate “[WARNING]” for each condition. Signal with the expression “[OK]” if none of those conditions are met

  • Express the result in a markdown-formatted table

7mo

copilot

Based on the provided project details, we have the following IC and its associated decoupling capacitors. Since the texts did not provide specific voltage levels for the power nets or voltage ratings for the capacitors, certain assumptions will be made. Typically, in lithium-ion battery charging applications, the input voltage (VIN) might range from 4.5V to 6V, assuming a common USB power source or similar. The MCP73831T operates safely within this range as its operating voltage range typically allows for this. Without explicit capacitor voltage ratings, we'll assume a standard rating that exceeds the application's needs.
ICs and Decoupling Capacitors:

Table

IC DesignatorDecoupling Capacitor(s)Power NetVoltage of Net (Assumed)Capacitor ValueVoltage Rating (Assumed)Status
IC1 (MCP73831T-2ACI/OT)C1, C3VIN, VBAT5V for VIN (Assumed), 4.2V for VBAT (Assumed)C1: 4.7u, C3: 4.7u10V (Assumed)OKOK
Assumptions:

  • The voltage of the VIN and VBAT nets are assumed based on typical values for lithium-ion battery charging circuits.

  • The voltage ratings of the decoupling capacitors (C1 and C3) are assumed to be 10V, which is a common value for applications operating within the voltage ranges mentioned. This assumption is made in the absence of specific data.

  • Since both C1 and C3 are connected to IC1 and meet the general recommendation for having decoupling capacitors, and the assumed voltage rating of the capacitors is well above the assumed net voltages, their status is marked as OKOK.

Note: The presence of "WARNINGWARNING" signals could not be determined without the actual voltage ratings of the capacitors and the precise voltage levels of the nets. Users should verify these values against the capacitors' datasheets and the requirements of their specific application to ensure proper operation.
7mo
xplor

xplor

give me the circuit
7mo

copilot

Creating a detailed textual description of how to connect the components in your Lithium-ion battery charger project using the MCP73831 chip, including input and output connectors, a charging current programming resistor (Rprog), decoupling capacitors (C1, C2, C3), and a charge status indicator LED (STAT). The design targets up to 500mA charge current.
Circuit Connections

  1. Power Input (VIN):

    • Connect VIN:(P1) to IC1:(VDD) for power supply to the IC.

    • Connect C1:(P1) also to VIN to serve as a decoupling capacitor for the power input. Connect C1:(P2) to GND.

    • Install another decoupling capacitor C2 connected from VIN to GND to stabilize the input power further. Specifically, connect C2:(P2) to VIN and C2:(P1) to GND.

  2. Ground Connections (GND):

    • Connect GND to IC1:(VSS), providing a common ground reference for the IC.

    • The ground side of C1, C2, and C3 (C1:(P2), C2:(P1), C3:(P2)) should be connected together and to GND.

  3. Battery Connection (VBAT):

    • VBAT:(P1) goes to IC1:(VBAT) for the battery connection.

    • Connect C3:(P1) to VBAT to serve as a decoupling capacitor for the battery. C3:(P2) connects to GND.

  4. Programming Resistor (Rprog):

    • Connect Rprog:(P1) to IC1:(PROG) to set the charging current. According to the datasheet information, a 2k resistor can be used here.

    • Rprog:(P2) goes to GND.

  5. Charge Status LED (STAT):

    • Connect STAT:(A) to IC1:(STAT) to receive charge status signals.

    • Connect STAT:(K) through R1:(P1) to GND for the status LED. R1 limits the current through the LED. Here, R1 is specified as 1k.

Connection Overview

  • Decoupling Capacitors:

    • Connect C1:1 to VIN, C1:2 to GND.

    • Connect C2:1 to GND, C2:2 to VIN.

    • Connect C3:1 to VBAT, C3:2 to GND.

  • Power Supply and Battery:

    • Connect VIN:1 to IC1:VDD.

    • Connect VBAT:1 to IC1:VBAT.

  • Ground (GND) Connections:

    • All GND connections of capacitors (C1, C2, C3), Rprog:2, and one end of R1 (R1:2) are tied to common ground.

  • Charge Control and Status Indication:

    • Connect IC1:PROG to Rprog:1.

    • Connect IC1:STAT to STAT:A, and STAT:K to R1:1.

This textual schematic provides a comprehensive guide for connecting the components of your Lithium-ion battery charger project using the MCP73831. For lay-outing these connections in Flux, follow the pin-to-pin connections accurately, and place components to minimize noise and potential interferences, especially keeping decoupling capacitors close to their corresponding IC pins.
7mo
Someone is typing...
VBAT
C2
Capacitance
0.1u F
VBAT
VIN
STAT
VIN
R1
Resistance
1k Ω
VIN
C1
Capacitance
4.7u F
IC1
C3
Capacitance
4.7u F
Rprog
Resistance
2k Ω
VIN
GND
GND
VIN
VBAT

MCP73831 Module

MCP73831 Module
Description

Created
February 1st 2024
Last updated by vasy_skral
a year ago
1 Contributor(s)
vasy_skral

Controls

Properties

Availability & Pricing

DistributorQty 1
Digi-Key$0.61–$0.76
LCSC$0.76
Mouser$0.73

Assets

    Thumbnail
  • thumbnail
    MCP73831 Module-removebg-preview.png

    id=MCP73831 Module-removebg-preview

Simulation

µs

Simulation Speed

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Checks that the power traveling across a given resistor is under its rating with 50% headroom.
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Checks that IC pins that require pull up or pull down resistors have them.
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Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.
Checks that all parts have a part number and are available from distributors.
Reports copper elements that are shorting.
Reports parts that have no footprint.
Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.
Designator
Ruleset
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Remove VALUEs
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Reports terminals that are not connected properly. NOTE: Only connections to the center of pads are considered valid.
Reports nodes that are using rules that are not supported anymore.
Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.
Detect any via, trace or copper fill island that is not connected to any net.