DS2438Z

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IC BATT MONITOR SMART 8SOIC

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Especificações

Atributo Valor
Package Tube
ProductStatus Obsolete
Function Battery Monitor
BatteryChemistry Smart Batteries
Interface 1-Wire
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Visão Geral

Description

The DS2438Z is a smart battery monitor integrated circuit developed by Maxim Integrated, now part of Analog Devices. It is designed to measure and report various parameters critical to battery management in portable electronics, such as laptops, smartphones, and IoT devices.
Key features of the DS2438Z include its ability to measure battery voltage, current, and temperature. It also includes a real-time clock, an analog-to-digital converter (ADC), and a programmable alarm, enhancing its utility in power monitoring applications. The device communicates via a 1-Wire protocol, which allows for simple connectivity and reduced wiring complexity.
The DS2438Z's small form factor and low power consumption make it ideal for use in compact and energy-efficient devices. Its precise monitoring capabilities aid in optimizing battery life and performance by enabling more accurate battery charging and discharging cycles. Additionally, its built-in EEPROM can store battery-specific data, such as charge/discharge cycles, to help track battery health over time. Overall, the DS2438Z is a versatile solution for effective battery and power management in modern electronic devices.

Equivalent

The DS2438Z is a smart battery monitor with temperature, voltage, and current measurement capabilities. Equivalent products include:
1. Maxim Integrated DS2782 - Battery Monitor with Fuel Gauge.
2. Texas Instruments BQ series (e.g., BQ27542) - Battery fuel gauge ICs.
3. Analog Devices LTC2941 - Battery gas gauge with coulomb counter.
4. Renesas ISL94203 - Battery pack monitor IC.
These alternatives offer similar battery management features suitable for various applications.

Features

The DS2438Z is a smart battery monitor integrated circuit developed by Maxim Integrated. It is designed for battery pack applications and offers several key features:
1. Battery Voltage Measurement: The DS2438Z can measure battery voltage with an accuracy of ±10mV, providing essential data for monitoring battery health.
2. Temperature Sensing: It includes an integrated temperature sensor that measures temperature with ±2°C accuracy, critical for thermal management in battery systems.
3. Current Measurement: The IC supports current measurement via an external sense resistor, aiding in tracking the charge and discharge cycles.
4. Data Storage: It includes a 40-byte user-programmable EEPROM and 256-bit SRAM for storing battery-specific information.
5. 1-Wire Interface: The DS2438Z uses a 1-Wire communication protocol, which allows easy interfacing and reduces wiring complexity.
6. Timekeeping: It has a real-time clock to provide time-stamped measurements for better battery management.
7. Low Power Consumption: The device is designed for low power operation, making it suitable for portable and battery-operated devices.
These features make the DS2438Z an efficient solution for battery monitoring and management systems.

Pinout

The DS2438Z is a smart battery monitor IC with a 6-pin configuration. Here is a summary of its pin count and functions:
1. Pin 1 (VDD): Power supply pin. Connects to the positive terminal of the battery.
2. Pin 2 (DQ): Data input/output pin. Used for communication with a microcontroller through the 1-Wire protocol.
3. Pin 3 (GND): Ground pin. Connects to the negative terminal of the battery.
4. Pin 4 (VSENS+): Positive input for voltage measurement. Used for sensing battery voltage.
5. Pin 5 (VSENS-): Negative input for voltage measurement. Used in conjunction with VSENS+ to measure battery voltage accurately.
6. Pin 6 (VAD): Analog input. Can be used for external voltage measurements, providing additional monitoring capabilities.
The DS2438Z enables monitoring of battery voltage, current, and temperature, making it a versatile component for battery management systems. It also includes features like an integrated temperature sensor and an elapsed time meter.

Manufacturer

The DS2438Z is manufactured by Maxim Integrated, now part of Analog Devices, Inc. Maxim Integrated is a company known for designing, developing, and manufacturing analog and mixed-signal integrated circuits. The company serves various industries, including automotive, consumer electronics, communications, and industrial sectors. Analog Devices, the parent company, is a global leader in the design and manufacturing of semiconductor products and solutions, emphasizing high-performance analog, mixed-signal, power management, and digital signal processing technologies.

Application

The DS2438Z is a smart battery monitor used in various applications. Its primary use is in battery-powered devices for monitoring battery parameters such as voltage, temperature, and current, ensuring efficient battery management. It is commonly utilized in portable electronics, such as smartphones, laptops, and wearable devices, to extend battery life and maintain performance. Additionally, the DS2438Z is used in battery packs for energy storage systems and uninterruptible power supplies (UPS) to provide accurate state-of-charge monitoring. It is also implemented in electric vehicles and renewable energy systems to ensure effective energy management. Its integration facilitates intelligent power monitoring and enhances device reliability and safety.

Package

The DS2438Z is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is compact, suitable for surface-mount technology, and used in various applications where space is a constraint.

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