MCP73831T-2DCI/OT

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MCP73831T-2DCI/OT

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IC BATT CNTL LI-ION 1CEL SOT23-5

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Spezifikationen

Attribut Wert
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Battery Chemistry Lithium Ion/Polymer
Number of Cells 1
Current - Charging Constant - Programmable
Programmable Features Current
Fault Protection Over Voltage
Charge Current - Max 500mA
Battery Pack Voltage 4.2V
Voltage - Supply (Max) 6V
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Übersicht

Description

The MCP73831T-2DCI/OT is a compact, fully integrated linear charge management controller from Microchip Technology, designed for single-cell lithium-ion or lithium-polymer batteries. Key features include a programmable charge current up to 500 mA, ensuring flexibility for various charging needs. The device operates with an input voltage range of 3.75V to 6V, making it suitable for USB and various adapter sources. It incorporates safety measures like thermal regulation, under-voltage lockout, and overvoltage protection, enhancing reliability.
The controller has a simple interface with minimal external components, which simplifies design and reduces cost. It provides status indication via a single output pin, allowing for easy monitoring of the charging state. The MCP73831T-2DCI/OT is housed in a small SOT-23-5 package, making it ideal for space-constrained applications.
Overall, this controller is commonly used in portable devices, power banks, and wearable electronics due to its efficiency, safety features, and compact design, providing a reliable solution for battery charging management.

Equivalent

The MCP73831T-2DCI/OT is a popular single-cell Li-Ion/Li-Polymer battery charge management controller. Equivalent products include:
1. TP4056 - Linear Li-Ion battery charger.
2. MAX1555/MAX1551 - USB and AC adapter-powered linear Li-Ion charger.
3. LTC4054 - Standalone linear Li-Ion battery charger.
4. BQ24072 - Single-cell Li-Ion battery charger from Texas Instruments.
These alternatives offer similar functionalities but may vary in features, package, or specifications.

Features

The MCP73831T-2DCI/OT is a highly integrated, linear charge management controller for single-cell Li-Ion and Li-Polymer batteries. Its features include:
1. Programmable Charge Current: Allows flexibility with charging rates via an external resistor.
2. Space Efficient: Offered in a compact SOT-23-5 package, ideal for portable and space-constrained applications.
3. Charge Termination: Automatically terminates charging when the battery reaches full charge.
4. Preconditioning: Provides preconditioning for depleted batteries with a low current until the cell voltage reaches a safe level.
5. Automatic Recharge: Reinitiates charging if the battery voltage drops below a set threshold.
6. Status Indicators: Includes charge status and fault indication pins.
7. Thermal Regulation: Actively regulates the charge process to prevent overheating.
8. Wide Input Voltage Range: Operates from 3.75V to 6V.
9. Protection Features: Includes overvoltage protection and operates within a safe temperature range.
These features make the MCP73831T-2DCI/OT suitable for various battery-powered applications, offering reliability and efficiency in charging management.

Pinout

The MCP73831T-2DCI/OT is a single-cell, fully integrated lithium-ion/lithium-polymer battery charge management controller. It comes in a small SOT-23-5 package, which means it has 5 pins. Here are the pin functions:
1. VBAT (Pin 1): This pin is connected to the positive terminal of the battery. It serves as the output of the device to charge the battery.
2. VDD (Pin 2): This pin is the power input to the device. It should be connected to the source that provides the charging voltage.
3. STAT (Pin 3): This open-drain status output pin can be used to indicate charging status; it typically interfaces with an LED.
4. PROG (Pin 4): This pin is used to set the charging current by connecting a resistor between PROG and VSS.
5. VSS (Pin 5): This is the ground pin of the device.
The MCP73831T-2DCI/OT efficiently manages the charging process with features like preconditioning, constant-current/constant-voltage regulation, and charge termination, making it suitable for compact battery-powered applications.

Manufacturer

The MCP73831T-2DCI/OT is manufactured by Microchip Technology Inc. Microchip Technology is a publicly traded American company that specializes in the design and manufacturing of microcontrollers, mixed-signal, analog, and Flash-IP integrated circuits. The company provides solutions for a broad range of applications across various industries, including automotive, consumer electronics, industrial, and telecommunications. Known for their wide range of high-performance, low-cost products, Microchip Technology is a leading provider in the semiconductor industry, offering comprehensive support and development tools for their products.

Application

The MCP73831T-2DCI/OT is a linear charge management controller specifically designed for lithium-ion and lithium-polymer rechargeable batteries. Its primary application areas include:
1. Portable Electronics: Ideal for charging batteries in devices like smartphones, tablets, and digital cameras.
2. Wearable Devices: Suitable for smartwatches and fitness trackers due to its compact size and efficient charging.
3. IoT Devices: Used in Internet of Things applications where space and power efficiency are crucial.
4. Consumer Electronics: Employed in devices such as Bluetooth headsets and MP3 players.
5. Backup Power Systems: Utilized in battery backup applications to ensure reliable charging.
Its small package and minimal external components make it versatile for compact and efficient battery charging solutions.

Package

The MCP73831T-2DCI/OT is a surface-mount package type known as SOT-23-5. This package is compact, featuring five leads, and is commonly used for low-power applications, such as battery charging circuits. It provides a small footprint suitable for space-constrained designs.

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