MAX6434UK+T Allicdata Electronics
Allicdata Part #:

MAX6434UK+T-ND

Manufacturer Part#:

MAX6434UK+T

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Maxim Integrated
Short Description: IC MONITOR BAT LP SOT23-5
More Detail: Battery Battery Monitor IC Multi-Chemistry SOT-23-...
DataSheet: MAX6434UK+T datasheetMAX6434UK+T Datasheet/PDF
Quantity: 3987
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Stock 3987Can Ship Immediately
Specifications
Series: --
Packaging: Tape & Reel (TR) 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Function: Battery Monitor
Battery Chemistry: Multi-Chemistry
Number of Cells: 1
Fault Protection: --
Interface: --
Operating Temperature: -40°C ~ 85°C (TA)
Package / Case: SC-74A, SOT-753
Supplier Device Package: SOT-23-5
Base Part Number: MAX6434
Description

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The MAX6434UK+T is an advanced programmable single-cell lithium-ion (Li+)/lithium-ion polymer (Li-poly) battery manager offering features and flexibility never before available in a single-cell battery manager. This PMIC - Battery Management device integrates all of the monitoring, protection, and gas gauging functions required in a Li+/Li-poly battery-operated product, such as mobile phones, personal digital assistants (PDAs), and notebook computers. It is designed to accurately monitor battery temperature, voltage, current, SoC, and capacity with minimal effect on battery current. With these functions and programmable FlexEnegry settings, the MAX6434UK+T provides a highly efficient battery-management solution.

The MAX6434UK+T is specialized for the management of Li+/Li-poly batteries and can be adapted to the specific needs of applications that require more control of the battery than the conventional linear chargers offer. It provides a high accuracy in the detection of battery voltages and currents, as well as protection circuitry. It also offers two adjustable charge profiles, allowing customers to program the current and voltage levels they want, in order to optimize their system design. This allows the application of a different charge strategy based on the operating temperature, battery type, and/or state of charge.

Features of MAX6434UK+T

  • FlexEnegry Mode— Two Programmable Charge Profiles allow Programmable Peak Voltage, Termination Current, and Pre-charge Current for Optimized Charging Performance
  • Battery Protection— Programmable Overvoltage, Overcurrent, and Temperature Protection
  • High Efficiency— Up to 90% Efficiency at 8mA
  • Manual Reset— Allows Button-controlled Reset of All Settings for Safe Discharge of Li+/Li-poly Batteries
  • Gas Gauging— Battery Capacity and SoC Detection
  • Small 4mm × 4mm QFN Package

Working Principle of MAX6434UK+T

When the MAX6434UK+T is used as a Li+/Li-poly battery manager, it can be connected between the battery and LOAD by means of a low-Ohmic resistor. This allows the controller to accurately monitor the voltage, current, and temperature of the battery. The device can be programmed to determine the peak and termination voltage, the precharge current, and the battery overcurrent and overtemperature protection levels.

The MAX6434UK+T will continuously monitor the battery voltage, current, and temperature. The device will then initiate a charging cycle if the battery voltage is below the presetting threshold. During charging, the device will adjust the charging current in order to achieve the desired peak voltage. Once the desrted voltage has been reached, the controller will reduce the current and allow the battery to bleed off the stored energy. During the discharge, the chip will compare the battery voltage to the protection threshold and will activate protection in case of an overvoltage or overtemperature event.

The device also offers a manual reset feature. This allows the user to manually reset all the settings and ensure that the battery is discharged safely. In addition, the MAX6434UK+T also offers a fuel gauge function which provides precise SoC and capacity detection. This allows the controller to estimate the current state of charge and provide users with battery performance data.

Applications of MAX6434UK+T

The MAX6434UK+T is an ideal solution for Li+/Li-poly battery management, such as in mobile phones, personal digital assistants (PDAs), Smart Phones, Tablet PCs, and other applications.

Due to its high accuracy and precise control of battery parameters, this device is particularly suited for applications that require precise control and battery monitoring, such as medical and industrial electronics, as well as in remote monitoring systems and unmanned vehicles.

The MAX6434UK+T is also well suited for applications where power consumption must be strictly controlled. Due to its advanced architecture and power saving techniques, the device can reduce power consumption significantly with minimal effect on battery current.

The specific data is subject to PDF, and the above content is for reference

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