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HomeProductsIntegrated Circuits (ICs)PMIC - Battery ChargersMCP73843-420I/MS
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MCP73843-420I/MS - Microchip Technology

Manufacturer Part Number
MCP73843-420I/MS
Manufacturer
Microchip Technology
Allelco Part Number
32D-MCP73843-420I/MS
Warranty
1 Year Allelco Warranty - Find out more
Parts Description
IC BATT CONTRL LI-ION 1CEL 8MSOP
Package
8-MSOP
Data sheet
1.MCP73843-420I/M.pdf ...

PCN Assembly/Origin

Bond Wire 29/Nov/2017.pdf

Other Related Documents

Development Tools Catalog.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 27746
  • Unit Price: $1.69
  • Subtotal: $0.00

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Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $1.69 $1.69
10+ $1.464 $14.64
30+ $1.323 $39.69
100+ $1.178 $117.80
500+ $1.113 $556.50
1000+ $1.084 $1,084.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.
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Specifications

MCP73843-420I/MS Tech Specifications
Microchip Technology - MCP73843-420I/MS technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - MCP73843-420I/MS

Product Attribute Attribute Value  
Manufacturer Microchip Technology  
Voltage - Supply (Max) 12V  
Supplier Device Package 8-MSOP  
Series -  
Programmable Features Timer  
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)  
Package Tube  
Operating Temperature -40°C ~ 85°C (TA)  
Number of Cells 1  
Product Attribute Attribute Value  
Mounting Type Surface Mount  
Interface -  
Fault Protection -  
Current - Charging -  
Charge Current - Max -  
Battery Pack Voltage 4.2V  
Battery Chemistry Lithium Ion/Polymer  
Base Product Number MCP73843  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

MCP73843-420I/MS

Manufacturer

Microchip Technology

Introduction

The MCP73843-420I/MS is a fully integrated charger for Lithium Ion or Lithium Polymer batteries designed by Microchip Technology. This device is engineered to provide efficient charging solutions in a compact form factor.

Product Features and Performance

Fully Integrated Lithium Ion/Polymer charger

Automatic end-of-charge control

High-accuracy voltage regulation

Integrated pass transistor

Integrated current sense

Integrated thermal regulation

Low external component count

Product Advantages

Space-saving MSOP package

High-accuracy voltage regulation ensures precise charging

Built-in safety features enhance battery protection

Supports design flexibility through programmable timer

Key Technical Parameters

Battery Chemistry: Lithium Ion/Polymer

Number of Cells: 1

Battery Pack Voltage: 4.2V

Voltage Supply (Max): 12V

Operating Temperature: -40°C to 85°C

Mounting Type: Surface Mount

Package/Case: 8-TSSOP, 8-MSOP

Quality and Safety Features

Integrated thermal regulation to prevent overheating

Precision charging control to promote battery longevity

Compatibility

Engineered for use with single-cell Lithium Ion or Polymer batteries

Application Areas

Portable consumer electronics

Wireless headsets

Handheld devices

Product Lifecycle

The product status is Active, indicating ongoing production and availability

No current indication of near-term discontinuation, ensuring long-term availability

Several Key Reasons to Choose This Product

High integration level simplifies circuit design and reduces BOM costs

Supports a wide range of Lithium battery chemistries, offering design flexibility

Thermal regulation and precise voltage regulation enhance battery safety and lifespan

Suitable for compact, portable applications due to its small package size

Active product status with Microchip Technology provides reliable long-term availability and support

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology MCP73843-420I/MS

Product Attribute MCP73843T-420I/MS MCP73843T-410I/MS MCP73843-410I/MS MCP73844T-820I/MS
Part Number MCP73843T-420I/MS MCP73843T-410I/MS MCP73843-410I/MS MCP73844T-820I/MS
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Voltage - Supply (Max) - - - -
Battery Pack Voltage - - - -
Series - - - -
Charge Current - Max - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Programmable Features - - - -
Interface - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Battery Chemistry - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Number of Cells - - - -
Fault Protection - - - -
Current - Charging - - - -

MCP73843-420I/MS Datasheet PDF

Download MCP73843-420I/MS pdf datasheets and Microchip Technology documentation for MCP73843-420I/MS - Microchip Technology.

Datasheets
Analog and Interface Product Guide.pdf MCP73841-44.pdf
PCN Assembly/Origin
Bond Wire 29/Nov/2017.pdf
Other Related Documents
Development Tools Catalog.pdf
PCN Packaging
Label and Packing Changes 23/Sep/2015.pdf Packing Changes 10/Oct/2016.pdf
Design Resources
Portable Power Conversion Design Guide.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

  • Kevi***.
    Mar 17, 2026

    Fast switching and stable output. Very satisfied with this IC

  • Daou***hekebkeb
    Jun 16, 2024

    I had a great experience purchasing items from Allelcoelec, I recommend

  • Uri ***al
    Jun 19, 2024

    Good comunication,
    Transpnt regarding the process and price.

  • Yaqu***l Ali
    Jun 19, 2024

    Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

  • Lea ***
    Jun 19, 2024

    Morrey was very helpful and right on top of things!
    He replied quickly to my RFQ. He was very courteous and professional.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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MCP73843-420I/MS Image

MCP73843-420I/MS

Microchip Technology
32D-MCP73843-420I/MS

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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