AD7280ABSTZ-RL
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Analog Devices Inc. AD7280ABSTZ-RL

Manufacturer No:
AD7280ABSTZ-RL
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC BATT MON LI-ION 1-6CEL 48LQFP
Delivery:
Payment:
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Product Introduction

Overview

The AD7280ABSTZ-RL, produced by Analog Devices Inc., is a sophisticated lithium-ion battery monitoring system designed for precise and reliable battery management. This integrated circuit (IC) is particularly suited for applications in electric and hybrid electric vehicles, power supply backup systems, and power tools. The AD7280A series, which includes the AD7280ABSTZ-RL, features a 12-bit analog-to-digital converter (ADC) with a conversion time of 1 μs per channel, ensuring high-speed and accurate measurements.

Key Specifications

ParameterMinTypMaxUnitTest Conditions/Comments
Resolution12 BitsNo missing codes
Integral Nonlinearity±1 LSB
Differential Nonlinearity±0.8 LSB
Offset Error±1 LSB
Gain Error±1 LSB
VDD Operating Range8 V30 VV
Temperature Range-40°C+105°C°C
Power Consumption (Master Device During Conversion)5.6 mA7.3 mAmA
Power Consumption (Master Device During Data Readback)5.3 mA7.0 mAmA

Key Features

  • 12-bit ADC with 1 μs per channel conversion time
  • Six differential analog input channels for cell voltage measurement
  • Six auxiliary ADC input channels for temperature measurement or system diagnostics
  • On-chip voltage regulator and internal reference (±3 ppm/°C)
  • Cell balancing interface outputs to control external FET transistors
  • Daisy-chain interface allowing up to eight parts to be stacked
  • Serial interface with alert function and CRC protection on read and write commands
  • High input impedance and low power-down current (1.8 μA)
  • On-chip registers for channel sequencing and dynamic alert function

Applications

  • Lithium-ion battery monitoring
  • Electric and hybrid electric vehicles
  • Power supply backup systems
  • Power tools

Q & A

  1. What is the primary function of the AD7280ABSTZ-RL? The primary function is to monitor and manage lithium-ion battery cells.
  2. What is the resolution of the ADC in the AD7280ABSTZ-RL? The ADC has a resolution of 12 bits.
  3. What is the conversion time per channel for the ADC? The conversion time per channel is 1 μs.
  4. How many analog input channels does the AD7280ABSTZ-RL have? It has six differential analog input channels and six auxiliary ADC input channels.
  5. What is the operating voltage range for the VDD supply? The VDD supply operates from 8 V to 30 V.
  6. What is the temperature range for the AD7280ABSTZ-RL? The temperature range is from -40°C to +105°C.
  7. Does the AD7280ABSTZ-RL support daisy-chaining? Yes, it supports daisy-chaining of up to eight parts.
  8. What is the purpose of the cell balancing interface outputs? The cell balancing interface outputs are used to control external FET transistors for discharging individual cells.
  9. Does the AD7280ABSTZ-RL have built-in self-test features? Yes, it includes a built-in self-test feature that internally applies a known voltage to the ADC inputs.
  10. What kind of interface does the AD7280ABSTZ-RL use for communication? It uses a serial interface with SPI and alert functions, along with CRC protection on read and write commands.

Product Attributes

Function:Battery Monitor
Battery Chemistry:Lithium Ion
Number of Cells:1 ~ 6
Fault Protection:Over/Under Voltage
Interface:SPI
Operating Temperature:-40°C ~ 105°C (TA)
Mounting Type:Surface Mount
Package / Case:48-LQFP
Supplier Device Package:48-LQFP (7x7)
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In Stock

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Same Series
AD7280ABSTZ
AD7280ABSTZ
IC BATT MON LI-ION 1-6CEL 48LQFP
AD7280AWBSTZ-RL
AD7280AWBSTZ-RL
IC BATT MON LI-ION 1-6CEL 48LQFP
AD7280ABSTZ-RL
AD7280ABSTZ-RL
IC BATT MON LI-ION 1-6CEL 48LQFP

Similar Products

Part Number AD7280ABSTZ-RL AD7280WBSTZ-RL AD7280AWBSTZ-RL
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active
Function Battery Monitor Battery Monitor Battery Monitor
Battery Chemistry Lithium Ion Lithium Ion Lithium Ion
Number of Cells 1 ~ 6 1 ~ 6 1 ~ 6
Fault Protection Over/Under Voltage Over Temperature, Over/Under Voltage, Short Circuit Over/Under Voltage
Interface SPI SPI SPI
Operating Temperature -40°C ~ 105°C (TA) -40°C ~ 105°C (TA) -40°C ~ 105°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 48-LQFP 48-LQFP 48-LQFP
Supplier Device Package 48-LQFP (7x7) 48-LQFP (7x7) 48-LQFP (7x7)

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