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DS2438Z
+Lista de MateriaisIC BATT MONITOR SMART 8SOIC
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FabricanteAnalog Devices Inc./Maxim Integrated
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Peça do Fabricante #DS2438Z
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Pacote 8-SOIC (0.154, 3.90mm Width)
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Em Estoque7550
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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
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
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
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
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.