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Manufacturer / Brand: AD
Details: Low Cost Precision Analog Front End and Controller for Battery Test/Formation Systems IC
Series: AD8451
Quantity Available: Over 41040 pieces

Datasheet for AD8451ASTZ:

AD8451ASTZ datasheet
Price for AD8451ASTZ
Product Parameters
  • Manufacturer Part Number : AD8451ASTZ
  • Manufacturer : AD
  • Description : Low Cost Precision Analog Front End and Controller for Battery Test/Formation Systems IC
  • Series : AD8451
  • Reference Price : USD 4.32
  • Our Price : We have a better price, contact us by email
  • Product Type : Battery Management
  • Function : Industrial Battery Manufacturing
  • Current Suggest : Recommended for New Designs
  • Status : Production
  • ROHS Status : ROHS Compliant (Lead Free)
  • Package Type : 80-Lead LQFP (14mm x 14mm)
  • Pins : 80
  • MFG Package Case : ST-80-2
  • Part Type : OTH
  • Standard Packing Type : Tray
  • Standard Packing Quantity : 90
  • Working Temperature : -40 to 85C
  • Other Part Number : AD8451ASTZ
  • Shipping methods : DHL FEDEX UPS TNT
  • Delivery Time : Ship within 1 day.
  • Manufacturer Production time : 6-8 weeks (Normally have stocks)
  • Weight : 0.001KG

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Features and Benefits of AD8451ASTZ
  • Integrated constant current and voltage modes with automatic switchover
  • Charge and discharge modes
  • Precision voltage and current measurement
  • Integrated precision control feedback blocks
  • Precision interface to PWM or linear power converters
  • Fixed gain settings
    Current sense gain: 26 V/V (typ)
    Voltage sense gain: 0.8 V/V (typ)
  • Excellent ac and dc performance
  • Maximum offset voltage drift:
    0.9 μV/°C
  • Maximum gain drift: 3 ppm/°C
  • Low current sense amplifier input voltage noise: >9 nV/√Hz typ
  • Current sense CMRR:
    108 dB minimum
  • TTL compliant logic
Product Detailed Description for AD8451ASTZ

The AD8451 is a precision analog front end and controller for testing and monitoring battery cells. A precision fixed gain instrumentation amplifier (IA) measures the battery charge/discharge current, and a fixed gain difference amplifier (DA) measures the battery voltage. Internal laser trimmed resistor networks set the gains for the IA and the DA, optimizing the performance of the AD8451 over the rated temperature range. The IA gain is 26 and the DA gain is 0.8.

Voltages at the ISET and VSET inputs set the desired constant current (CC) and constant voltage (CV) values. CC to CV switching is automatic and transparent to the system.

A TTL logic level input, MODE, selects the charge or discharge mode (high for charge, low for discharge). An analog output, VCTRL, interfaces directly with the Analog Devices, Inc., ADP1972 PWM controller.

The AD8451 simplifies designs by providing excellent accuracy, performance over temperature, flexibility with functionality, and overall reliability in a space-saving package. The AD8451 is available in an 80-lead, 14 mm × 14 mm × 1 mm LQFP package and is rated for an operating temperature of −40°C to +85°C.

APPLICATIONS

  • Battery cell formation and testing
  • Battery module testing
Lifecycle information of AD8451ASTZ

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

AD8451ASTZ More photos
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