NB7130 Series
1-cell Li-ion Battery Protection IC for Low-side FETs
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Description
The NB7130ZA is one-cell Li-ion / Li-polymer rechargeable battery protection IC features highaccuracy overcharge, over-discharge, overcurrent, and a short circuit current protector.
TheNB7130ZA further includes temperature protections and forced standby mode. It's possible to detect the temperature by connecting a thermistor.
The COUT and DOUT outputs (CMOS output) are normally High.
When the NB7130ZA detects any abnormal condition to stop charging or discharging, either the COUT or the DOUT output becomes Low.
Only in the abnormal temperature condition, both the COUT and DOUT outputs m ay become Low.
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Spec
Operating Input Voltage 1.5 V to 5.0 V (Maximum Rating: 12 V) Number of Cells 1 Supply Current Typ. 3.0 µA Standby Current Max. 0.04 µA Overcharge Detection Voltage 4.3 V to 4.8 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 0.0500 V (0.0001 V Step) Discharge Overcurrent Detection Voltage Accuracy ±0.75 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 ±0.75 mV Charge Overcurrent Detection Delay Time 8 ms, 16 ms, 32 ms, 512 ms Short Detection Voltage 0.020 V to 0.125 V (0.0001 V Step) Short Detection Voltage Accuracy ±1.0 mV (0.020 V ≤ VSHORT ≤ 0.080 V), ±2.0 mV (0.080 V < VSHORT ≤ 0.125 V) Short Detection Delay Time 0.28 ms, 0.53 ms, 1.1 ms, 2.1 ms Conditions for Overdischarge Restoration Latch Package WLCSP-8-ZA1 0 V Battery Charging Permission / Inhibition Protections / Functions
Temperature Protection Reset Alarm Cell Balance Cascadable Open Wire Detection Wakeup Short-circuit Current Detection Delay Time Shortening 
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Technical
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Typical Application
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Quality &
PackagesProduct Name Compatibility Package Marking Reliability NB7130ZAxxxxxE2S WLCSP-8-ZA1 See datasheet NB7130ZAS - 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.
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Sample / Buy
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Buy Online
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Buy, Request for Samples, Request for Information Materials
Authorized Distributors
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
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Download Datasheet
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".