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NB7123 Series
1-cell Li-ion Battery Protection IC for High-side FETS

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Description

The NB7123ZA is a one-cell Li-ion/Li-polymer rechargeable battery protection IC that supports high-side FET. This IC has overcharge/over-discharge, overcurrent, and temperature protection functions. This IC also has a forced standby function, and the current consumption of this IC can be reduced by using the STB pin. Each protection function can provide detections with high accuracy.

Spec

Operating Input Voltage 1.5 V to 5.0 V (Maximum Rating: 6.5 V)
Number of Cells 1
Supply Current Typ. 7.0 µA
Standby Current Max. 0.04 µA
Overcharge Detection Voltage 4.3 V to 4.7 V (0.001 V Step)
Overcharge Detection Voltage Accuracy ±6.5 mV
Overcharge Detection Delay Time 256 ms, 1024 ms, 4096 ms
Overdischarge Detection Voltage 2.0 V to 3.0 V (0.001 V Step)
Overdischarge Detection Voltage Accuracy ±17 mV
Overdischarge Detection Delay Time 16 ms, 32 ms, 128 ms, 256 ms
Discharge Overcurrent Detection Voltage 0.0060 V to 0.0400 V (0.0001 V Step)
Discharge Overcurrent Detection Voltage Accuracy ±1.0 mV
Discharge Overcurrent Detection Delay Time 16 ms, 32 ms, 128 ms, 512 ms, 1024 ms, 2048 ms,
Charge Overcurrent Detection Voltage -0.0500 V to -0.0060 V (0.0001 V Step)
Charge Overcurrent Detection Voltage Accuracy ±1.0 mV
Charge Overcurrent Detection Delay Time 8 ms, 16 ms, 32 ms, 512 ms
Short Detection Voltage 0.020 V to 0.100 V (0.0001 V Step)
Short Detection Voltage Accuracy ±1.0 mV
Short Detection Delay Time 0.28 ms, 0.53 ms, 1.1 ms, 2.1 ms
Conditions for Overdischarge Restoration Latch
Package WLCSP-8-ZA2
0 V Battery Charging Inhibition

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Protections / Functions

Temperature Protection Reset Alarm Cell Balance Cascadable Open Wire Detection Wakeup Short-circuit Current Detection Delay Time Shortening

Functional Description

Temperature Protection Temperature Protection
Reset Reset Function
Alarm Alarm Function
Cell Balance Cell Balance Function
Cascadable Cascade Connect Function
Open Wire Detection Open Wire Detect Function
Wakeup Wakeup Function
Short-circuit Current Detection Short-circuit Current Protection
Delay Time Shorting Output Delay Time Short Function

For more details, please refer to "Protecting Li-ion Batteries: Functions and Advantages".

Functional Description

Temperature Protection Temperature Protection
Reset Reset Function
Alarm Alarm Function
Cell Balance Cell Balance Function
Cascadable Cascade Connect Function
Open Wire Detection Open Wire Detect Function
Wakeup Wakeup Function
Short-circuit Current Detection Short-circuit Current Protection
Delay Time Shorting Output Delay Time Short Function

For more details, please refer to "Protecting Li-ion Batteries: Functions and Advantages".

Search for similar products under conditions below.

Category:Lithium-ion Battery Protection ICs

Features Battery Protection
Cell 1
Functions Temperature Protection,Short-circuit Current Detection,Delay Time Shortening

Technical Documents

  • Typical Application

    Typical Application

Quality & Packages

Product Name Compatibility Package Marking Reliability
NB7123ZAxxxxxE2S
  • gradeConsumer
 WLCSP-8-ZA2 See datasheet NB7123ZAS
  • Refer to the datasheets for the details on the product.
  • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

FAQ

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Buy / Contact

  • Purchase, Request for samples and documents
    Sales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
  • Available from 1 piece!
    Our electronic device products are available through our authorized online distributors.
  • Technical Support
NB7123 Series