ATA6870N-PLQW-19

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC for Battery Management Systems (BMS)

Characteristics: - High integration and performance - Low power consumption - Wide operating voltage range - Robust protection features - Compact package size

Package: PLQW-19 (Power Leadless Quad Flat No-Lead 19-pin package)

Essence: The ATA6870N-PLQW-19 is a highly integrated power management IC specifically designed for battery management systems in various applications.

Packaging/Quantity: The ATA6870N-PLQW-19 is typically sold in reels containing a quantity of 250 units per reel.

Specifications

The specifications of the ATA6870N-PLQW-19 include:

• Operating Voltage Range: 2.7V to 5.5V
• Number of Cells Supported: 1 to 6 cells
• Cell Voltage Measurement Accuracy: ±10mV
• Current Measurement Range: -3A to +3A
• Temperature Measurement Range: -40°C to +125°C
• Communication Interface: I2C/SMBus
• Protection Features: Overvoltage, Undervoltage, Overcurrent, Overtemperature, Short Circuit

Detailed Pin Configuration

The ATA6870N-PLQW-19 has a total of 19 pins. The pin configuration is as follows:

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: I2C/SMBus data line
4. SCL: I2C/SMBus clock line
5. ALERT: Interrupt output
6. THERM: Temperature measurement input
7. VREF: Reference voltage output
8. VSS: Negative supply voltage
9. VDD: Power supply input
10. VSS: Negative supply voltage
11. VDD: Power supply input
12. VSS: Negative supply voltage
13. VDD: Power supply input
14. VSS: Negative supply voltage
15. VDD: Power supply input
16. VSS: Negative supply voltage
17. VDD: Power supply input
18. VSS: Negative supply voltage
19. VDD: Power supply input

Functional Features

The ATA6870N-PLQW-19 offers the following functional features:

1. Cell voltage measurement and monitoring
2. Current measurement and monitoring
3. Temperature measurement and monitoring
4. Overvoltage and undervoltage protection
5. Overcurrent protection
6. Overtemperature protection
7. Short circuit protection
8. Communication interface for data exchange with external systems
9. Interrupt output for system notifications

Advantages and Disadvantages

Advantages: - High integration reduces component count and board space requirements - Wide operating voltage range allows compatibility with various battery types - Robust protection features ensure safe operation of the battery system - Low power consumption contributes to energy efficiency - Compact package size enables easy integration into space-constrained designs

Disadvantages: - Limited to a maximum of 6 cells, may not be suitable for applications requiring higher cell counts - Requires I2C/SMBus communication interface for configuration and data exchange

Working Principles

The ATA6870N-PLQW-19 operates by continuously monitoring the cell voltages, current, and temperature of the battery system. It utilizes an internal ADC (Analog-to-Digital Converter) to convert analog measurements into digital values. The IC also incorporates various protection mechanisms to safeguard the battery system against overvoltage, undervoltage, overcurrent, overtemperature, and short circuit conditions. The communication interface allows external systems to configure the IC and retrieve measurement data.

Detailed Application Field Plans

The ATA6870N-PLQW-19 is widely used in battery management systems for various applications, including:

1. Electric vehicles (EVs) and hybrid electric vehicles (HEVs)
2. Energy storage systems (ESS)
3. Portable electronic devices
4. Uninterruptible power supplies (UPS)
5. Industrial equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the ATA6870N-PLQW-19 include:

1. LTC6804-1 by Linear Technology
2. BQ76940 by Texas Instruments
3. MAX14920 by Maxim Integrated
4. ISL94203 by Renesas Electronics
5. BD70522GUL by Rohm Semiconductor

These alternative models can be considered based on specific application requirements and design considerations.

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