NB7120 Series
1-cell Li-ion Battery Protection IC for High-side FETS
NB7120 Series
1-cell Li-ion Battery Protection IC for High-side FETS
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Description
The NB7120ZA is one-cell Li-ion/Li-polymer rechargeable battery protection IC features highaccuracy over-charge/discharge, overcurrent and temperature protections for external high-side FETs and a sense resistor. The NB7120ZA can detect over-charge/discharge and load overcurrent, further includes a short circuit protector for preventing large external short circuit current. It is possible to detect the temperature by connecting a thermistor.
Spec
| Operating Input Voltage | 1.5 V to 5.0 V (Maximum Rating: 6.5 V) | ||
| Number of Cells | 1 | ||
| Supply Current | Typ. 5.0 µA | ||
| Standby Current | Max. 0.04 µA | ||
| Overcharge Detection Voltage | 4.2 V to 4.6 V (0.005 V Step) | ||
| Overcharge Detection Voltage Accuracy | ±10 mV | ||
| Overcharge Detection Delay Time | 1024 ms, 2048 ms, 3072 ms, 4096 ms | ||
| Overdischarge Detection Voltage | 2.0 V to 3.4 V (0.005 V Step) | ||
| Overdischarge Detection Voltage Accuracy | ±35 mV | ||
| Overdischarge Detection Delay Time | 16 ms, 32 ms, 128 ms | ||
| Discharge Overcurrent Detection Voltage | 0.0080 V to 0.0800 V (0.0001 V Step) | ||
| Discharge Overcurrent Detection Voltage Accuracy | ±1.5 mV (0.0080 V to 0.0300 V), ±5 % (0.0301V to 0.0600 V), ±3 mV (0.0601V to 0.0800 V) | ||
| Discharge Overcurrent Detection Delay Time | 32 ms, 128 ms, 256 ms, 512 ms, 1024 ms, | ||
| Charge Overcurrent Detection Voltage | -0.0800 V to -0.0080 V (0.0001 V Step) | ||
| Charge Overcurrent Detection Voltage Accuracy | ±3 mV (-0.0800V to -0.0601 V), ±5 % (-0.0600V to -0.0326 V), ±1.5 mV (-0.0325 V to -0.0080 V) | ||
| Charge Overcurrent Detection Delay Time | 8 ms, 16 ms, 16.5 ms, 32 ms | ||
| Short Detection Voltage | 0.025 V to 0.125 V (0.001 V Step) | ||
| Short Detection Voltage Accuracy | ±2.5 mV | ||
| Short Detection Delay Time | 0.28 ms | ||
| Conditions for Overdischarge Restoration | Latch | ||
| Package | WLCSP-8-P15 | ||
| 0 V Battery Charging | 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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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".
Technical Documents
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Typical Application
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| NB7120ZAxxxxxE2S |
|
WLCSP-8-P15 | See datasheet | NB7120ZAS |
- 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
Buy / Contact
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support
NB7120 Series