AD7280AWBSTZ

Product Overview

Category

AD7280AWBSTZ belongs to the category of integrated circuit (IC) chips.

Use

This IC chip is primarily used for battery monitoring and management applications.

Characteristics

• High precision voltage measurement
• Low power consumption
• Small form factor
• Wide operating temperature range

Package

AD7280AWBSTZ is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of AD7280AWBSTZ lies in its ability to accurately monitor and manage battery voltages, ensuring optimal performance and safety.

Packaging/Quantity

AD7280AWBSTZ is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +105°C
• Resolution: 12 bits
• Number of Channels: 8
• Communication Interface: Serial Peripheral Interface (SPI)
• Conversion Time: 26 µs per cell

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. CS: Chip select input
4. SCLK: Serial clock input
5. SDI: Serial data input
6. SDO: Serial data output
7. ALERT: Alert output
8. TEMP: Temperature sensor input
9. VREF: Reference voltage output
10. VREG: Regulator output
11. VSS: Negative supply input
12. VBAT1 to VBAT8: Battery voltage inputs

Functional Features

• Accurate voltage measurement for each battery cell
• Overvoltage and undervoltage detection
• Temperature monitoring
• Fault detection and reporting
• Programmable alert thresholds
• Daisy-chain capability for multiple devices

Advantages and Disadvantages

Advantages

• High precision voltage measurement ensures accurate battery monitoring.
• Low power consumption prolongs battery life.
• Small form factor allows for space-efficient designs.
• Wide operating temperature range enables usage in various environments.

Disadvantages

• Limited number of channels (8) may not be suitable for applications requiring a higher number of battery cells.
• Requires external components for complete battery management system implementation.

Working Principles

AD7280AWBSTZ operates by measuring the voltage of each battery cell using an internal analog-to-digital converter (ADC). The measured voltages are then processed and compared against programmable thresholds to detect overvoltage and undervoltage conditions. Temperature sensing is also performed to monitor battery temperature. The chip communicates with a microcontroller or host device through the SPI interface, providing real-time data and alerts.

Detailed Application Field Plans

AD7280AWBSTZ finds application in various fields, including: 1. Electric vehicles: Battery monitoring and management systems in electric cars. 2. Renewable energy: Monitoring battery banks in solar or wind power systems. 3. Portable electronics: Battery management in smartphones, tablets, and laptops. 4. Industrial equipment: Battery monitoring in UPS systems and industrial machinery. 5. Medical devices: Battery management in portable medical equipment.

Detailed and Complete Alternative Models

1. AD7280A: Similar functionality with 12-bit resolution but without the temperature sensor input.
2. LTC6804: Multicell battery monitoring IC with additional features such as balancing and fault detection.
3. BQ76940: Battery management IC with integrated protection features and communication capabilities.

Note: This entry provides a brief overview of AD7280AWBSTZ. For more detailed information, please refer to the product datasheet and technical documentation provided by the manufacturer.

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