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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
ECAD Model
Parts Description
IC BATT CONTRL LI-ION 1CEL 8MSOP
Package
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Data sheet
Analog and Interface Product Guide.pdf
MCP73841-44.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 27746

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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 MCP73843-420I/MS MCP73843T-420I/MS MCP73844T-820I/MS MCP73853-I/ML
Part Number MCP73843-420I/MS MCP73843T-420I/MS MCP73844T-820I/MS MCP73853-I/ML
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package Tube Tape & Reel (TR) Tape & Reel (TR) Tube
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118', 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 16-VQFN Exposed Pad
Voltage - Supply (Max) 12V 12V 12V 5.5V
Battery Pack Voltage 4.2V 4.2V 8.2V 4.2V
Series - - - -
Charge Current - Max - - - 475mA
Base Product Number MCP73843 MCP73843 MCP73844 MCP73853
Programmable Features Timer Timer Timer Timer
Interface - - - -
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Battery Chemistry Lithium Ion/Polymer Lithium Ion/Polymer Lithium Ion/Polymer Lithium Ion/Polymer
Supplier Device Package 8-MSOP 8-MSOP 8-MSOP 16-QFN (4x4)
Number of Cells 1 1 1 ~ 2 1
Fault Protection - - - -
Current - Charging - - - Constant - Programmable

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

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

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