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Product Detailed Parameters
- Description：IC BATT MON LI-ION 3-6CEL 48LQFP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tray
- Function：Battery Monitor
- Battery Chemistry：Lithium Ion
- Number of Cells：3 ~ 6
- Fault Protection：Over Temperature, Over/Under Voltage
- Interface：-
- Operating Temperature：-40°C ~ 105°C (TA)
- Grade：Automotive
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：48-LQFP
- Supplier Device Package：48-LQFP (7x7)
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Overview
The AD8280WASTZ is a six-channel lithium-ion battery safety monitor manufactured by Analog Devices Inc. It operates within a supply voltage range of 6 V to 30 V and is housed in an LQFP-48 package suitable for SMD/SMT installation. The device is qualified under AEC-Q100 standards, ensuring reliability for automotive applications. It functions independently as a secondary protection system, monitoring cell voltages to detect overvoltage and undervoltage conditions. The component supports an operating temperature range from -40°C to +105°C with a typical quiescent current of 2 mA.
Feature Summary
- Provides independent secondary protection for lithium-ion battery stacks by monitoring individual cell voltages.
- Features programmable deglitching circuitry on each channel to prevent false alarms caused by transient input levels.
- Integrates internal reference and low-dropout regulator powered directly from the battery cell stack.
- Establishes trip points for overvoltage and undervoltage detection using external resistor dividers.
Applications
- Lithium-ion battery safety monitoring in electric vehicles
- Secondary protection systems for high-voltage battery packs
- Automotive energy storage management units
Procurement Notes
Verify the specific suffix WASTZ to confirm the tray packaging configuration and AEC-Q100 automotive qualification status. Ensure compatibility with the EVAL-CN0235-SDPZ evaluation platform if development support is required. Confirm that the LQFP-48 footprint matches the target PCB design constraints. Validate that the 6 V to 30 V operating range aligns with the intended battery stack voltage levels.
Selection Notes
Select this component when independent secondary protection is required alongside a primary monitor like the AD7280A. It is suitable for applications demanding AEC-Q100 compliance and wide temperature operation. Consider the 2 mA quiescent current impact on overall system efficiency. The integrated LDO and reference simplify the external component count compared to discrete solutions.
Part Context
The AD8280WASTZ belongs to the AD8280 series of battery management ICs designed specifically for lithium-ion applications. It serves as a dedicated safety monitor rather than a charge controller. The device complements primary measurement ICs by providing hardware-based alarm signals for critical fault conditions. Its design focuses on robustness and independence from the main system microcontroller.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference availability through official Analog Devices channels before considering alternatives.
