MAX1555EZK+T

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MAX1555EZK+T

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IC BATT CHG LI-ION 1CEL TSOT23-5

  • FabricanteAnalog Devices Inc./Maxim Integrated

  • Peça do Fabricante #MAX1555EZK+T

  • Pacote SOT-23-5

  • Em Estoque6367

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Especificações

Atributo Valor
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Battery Chemistry Lithium Ion
Number of Cells 1
Charge Current - Max 340mA
Battery Pack Voltage 4.2V
Voltage - Supply (Max) 7V
Interface USB
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Visão Geral

Description

The MAX1555EZK+T is a single-cell lithium-ion (Li+) battery charger designed for simplicity and efficiency. It allows charging from both USB and AC adapter sources, making it versatile for various portable applications. The device operates with a wide input voltage range of 3.7V to 7V, providing automatic source detection and selection. This feature ensures seamless switching between USB power and an external DC source.
The MAX1555EZK+T supports a charging current of up to 280mA from an AC adapter and 100mA from a USB source, facilitating fast and efficient charging. The device incorporates safety features such as over-temperature protection and reverse current blocking to prevent damage to the battery and charger.
Packaged in a compact 5-pin SOT23, it is ideal for space-constrained applications. The MAX1555EZK+T is particularly useful in handheld devices, wearable electronics, and small gadgets, offering a straightforward charging solution with minimal external components needed. Its ease of use and robust design make it a popular choice for developers looking to implement reliable battery charging functionalities.

Equivalent

The MAX1555EZK+T is a single-cell Li-Ion/Li-Polymer battery charger IC. Equivalent products include:
1. MCP73831T-2ACI/OT from Microchip Technology
2. MCP73832T-2ACI/OT from Microchip Technology
3. LTC4054 from Analog Devices (formerly Linear Technology)
4. TP4056 from NanJing Top Power ASIC Corp.
5. BQ24072 from Texas Instruments
These alternatives offer similar functionalities for charging single-cell lithium-ion batteries. Always check datasheets for compatibility with your specific application.

Features

The MAX1555EZK+T is a single-cell lithium-ion (Li+) battery charger designed for portable devices. It offers both USB and AC adapter charging options with automatic source selection. The device supports charging through a USB port up to 280mA or via a dedicated DC power source up to 500mA. It features a simple design with minimal external components, integrating a smart-charging controller that ensures safe and efficient charging. The MAX1555EZK+T includes features like thermal regulation to prevent overheating, reverse current blocking to protect the USB port, and a charging status indicator. The design is optimized for compact applications, housed in a small 5-pin SOT23 package, making it suitable for space-constrained devices. Additionally, its low dropout voltage extends charging time even with lower input voltage levels. The device is ideal for applications in mobile phones, PDAs, digital cameras, and other portable electronics requiring reliable battery management.

Pinout

The MAX1555EZK+T is a single-cell lithium-ion (Li+) battery charger. It is designed for applications powered from both USB and AC adapter sources. The device comes in a small 5-pin SOT23 package. The pin functions are as follows:
1. IN (Pin 1): Input from an external DC source (e.g., AC adapter). This pin accepts input voltages up to 7V.
2. GND (Pin 2): Ground connection for the device.
3. BATT (Pin 3): Battery connection pin. This is where the battery being charged is connected.
4. USB (Pin 4): USB input pin. This pin is used when the device is powered via a USB connection.
5. CHG (Pin 5): Charging status indicator. This open-drain output is used to indicate the charging status (typically connected to an LED).
The MAX1555EZK+T can manage charging from either USB or AC adapter without user intervention, making it suitable for a variety of battery charging applications.

Manufacturer

The MAX1555EZK+T is manufactured by Maxim Integrated, which is a part of Analog Devices, Inc. Maxim Integrated specializes in designing and manufacturing analog and mixed-signal integrated circuits. The company is known for producing various types of electronic components used in a wide range of applications, including power management, signal processing, and interface solutions. As a part of Analog Devices, Maxim Integrated contributes to providing innovative technologies that serve industries such as automotive, communications, consumer electronics, and industrial markets.

Application

The MAX1555EZK+T is a single-cell lithium-ion (Li+) battery charger IC designed for portable applications. Its primary application areas include mobile devices, MP3 players, PDAs, digital cameras, and other portable electronics requiring efficient battery charging. The IC supports USB and AC adapter inputs, making it versatile for various charging scenarios. Its small SOT23 package and minimal external components make it suitable for compact designs. Additionally, the MAX1555EZK+T's low dropout voltage and thermal regulation features enhance its applicability in space-constrained and thermally sensitive devices.

Package

The MAX1555EZK+T is packaged in a 5-pin SOT23 form factor. This package type is compact and suitable for surface-mount technology, often used in battery charging applications for portable devices.

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