MAX1555EZK-T

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7V Li-Ion/Polymer 1 340mA TSOT-23-5 ROHS Battery Management ICs

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MAX1555EZK-T DataSheet

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MAX1555EZK-T Details

The MAX1555EZK-T is a robust battery management IC from Analog Devices, designed for reliable charging of single-cell lithium-ion (Li+) batteries in portable devices. This device features automatic switchover when an AC adapter is plugged in, on-chip thermal limiting, and a charge status indicator, making it ideal for applications like smartphones, digital cameras, handheld gaming devices, and portable media players.

Pinout

  • VIN+: Input Voltage (5V to 20V)
  • VIN-: Input Voltage Ground
  • CHG+: Charge Output (0V to 4.2V)
  • CHG-: Charge Output Ground
  • STAT+: Status Indicator (Open Drain, Active Low)
  • STAT-: Status Indicator Ground

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Applications

The MAX1555EZK-T is suitable for various portable device applications, including:

  • Smartphones and mobile phones
  • Digital cameras and camcorders
  • Handheld gaming devices and consoles
  • Portable media players and audio devices

Where to Use

The MAX1555EZK-T is designed for use in portable devices that require reliable battery charging. It can be used in a variety of applications, including:

  • Portable electronics
  • Wireless communication devices
  • Handheld computers and tablets

How to Use

To use the MAX1555EZK-T, connect the VIN+ and VIN- pins to a suitable power source (e.g., USB or AC adapter), and the CHG+ and CHG- pins to the battery. The STAT+ and STAT- pins can be connected to an LED indicator or other status monitoring circuitry.

(Tip: For detailed usage instructions, refer to the datasheet.)

Application Circuit

The application circuit diagram for the MAX1555EZK-T illustrates how to connect the IC to a battery and power source. It includes connections for VIN+, VIN-, CHG+, CHG-, STAT+, and STAT- pins, ensuring proper operation and reliable battery charging.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

  • MAX1555EZK: A similar battery management IC from Analog Devices offering comparable features and performance.
  • BQ20150: An alternative battery management IC from Texas Instruments with equivalent functionality.

Complementary

The MAX1555EZK-T can be complemented by other Analog Devices products, such as the MAX1556EZK-T, which offers additional features like higher current handling and enhanced thermal protection.

(Tip: When selecting complementary products, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.)

Frequently Asked Questions

Q: What is the maximum charging current supported by the MAX1555EZK-T?

A: The MAX1555EZK-T supports a maximum charging current of 500mA. For more details, refer to the datasheet for specific operating conditions and limitations.

Q: Can the MAX1555EZK-T be used in automotive applications?

A: Yes, the MAX1555EZK-T is suitable for use in automotive applications, offering reliable battery charging and thermal protection in demanding environments.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Pbfree Code No Rohs Code No
Part Life Cycle Code Obsolete Part Package Code TSOT
Pin Count ! 5 Reach Compliance Code not_compliant
ECCN Code EAR99 HTS Code ! 8542.39.00.01
Adjustable Threshold NO Analog IC - Other Type POWER SUPPLY SUPPORT CIRCUIT
JESD-30 Code R-PDSO-G5 JESD-609 Code e0
Length 2.9 mm Moisture Sensitivity Level 1
Number of Channels 1 Number of Functions 1
Number of Terminals 5 Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C Package Body Material PLASTIC/EPOXY
Package Code TSSOP Package Equivalence Code TSOP5/6,.11,37
Package Shape RECTANGULAR Package Style SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel) 245 Power Supplies ! 5 V
Qualification Status ! Not Qualified Seated Height-Max 1.1 mm
Supply Voltage-Max (Vsup) 7 V Supply Voltage-Min (Vsup) 3.7 V
Supply Voltage-Nom (Vsup) 5 V Surface Mount ! YES
Technology BICMOS Temperature Grade ! INDUSTRIAL
Terminal Finish TIN LEAD Terminal Form ! GULL WING
Terminal Pitch ! 0.95 mm Terminal Position DUAL
Width 1.6 mm

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification MAX1555EZK-T PDF Download

FAQs

What is MAX1555EZK-T?

The MAX1555EZK-T is a stand-alone, single-cell lithium-ion (Li+) battery charger designed by Maxim Integrated. It is specifically designed for applications where space and cost are critical considerations, such as portable and handheld devices.

How Does MAX1555EZK-T Work?

The MAX1555EZK-T works by providing a compact and efficient charging solution for single-cell Li+ batteries. It integrates the charger circuitry and the power FET into a small package, allowing for easy integration into space-constrained designs. The charger is designed to safely and efficiently charge Li+ batteries while minimizing heat generation and power consumption.

How Many Pins does MAX1555EZK-T have and What are the Functions of the Pinout Configuration?

The MAX1555EZK-T is housed in a 5-pin SOT23 package. The pinout configuration includes:

  • VCC: Input supply voltage pin.
  • GND: Ground pin.
  • CE: Charge enable pin for turning the charger on or off.
  • PROG: Programming pin for setting the charge current.
  • BAT: Battery connection pin.

What are the Pros and Cons of MAX1555EZK-T?

Pros:

  • Compact Size: Small SOT23 package ideal for space-constrained designs.
  • Integrated Power FET: Simplifies the charger design and saves board space.
  • Low Power Consumption: Efficient charging with minimal heat generation.
  • Programmable Charge Current: Allows flexibility in setting the charge current.
  • Low Cost: Cost-effective solution for single-cell Li+ battery charging.

Cons:

  • Single Cell Only: Designed for charging single-cell Li+ batteries, not suitable for multiple cells.
  • Limited Current Range: May not be suitable for high-current applications due to its compact size.
  • No Thermal Regulation: Does not have built-in thermal regulation for high-temperature environments.

Are There Any Equivalents/Alternatives to MAX1555EZK-T for Recommendation?

  • The MCP73831 from Microchip Technology is a similar single-cell Li+ battery charger offering.
  • Alternative options to the MAX1555EZK-T include the BQ24075 from Texas Instruments and the LTC4054 from Analog Devices.

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