NB7147 Series
1-cell Li-ion Battery Protection IC with Selectable Over-discharge Detection Voltage
NB7147 Series
1-cell Li-ion Battery Protection IC with Selectable Over-discharge Detection Voltage
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Description
The NB7147GM is a one-cell Li- ion / polymer battery protection IC providing overcharge, over-discharge, and charge / discharge overcurrent detections.
Over-discharge detection can be selected via the CTRL pin input, depending on the application.
Low consumption and standby currents: Achieve longer driving time with a small capacity battery.
Spec
| Operating Input Voltage | 1.5 V to 5.0 V (Maximum Rating: 12 V) | ||
| Number of Cells | 1 | ||
| Supply Current | Typ. 2 µA (Normal mode) / Max. 4 µA | ||
| Standby Current | Max. 0.20 µA | ||
| Overcharge Detection Voltage | 4.2 V to 4.8 V (0.005 V Step) | ||
| Overcharge Detection Voltage Accuracy | ±15 mV | ||
| Overcharge Detection Delay Time | 512 ms, 1024 ms, 2048 ms | ||
| Overdischarge Detection Voltage | VDET2L: 2.0 V to 3.0 V (0.05 V Step) VDET2H: VDET2L + 0.25 V to VDET2L + 0.55 V (0.05 V Step) |
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| Overdischarge Detection Voltage Accuracy | VDET2L: ±35 mV | ||
| Overdischarge Detection Delay Time | 32 ms, 64 ms, 96 ms, 128 ms, 3584 ms | ||
| Discharge Overcurrent Detection Voltage | VDET31: 0.0030 V to 0.0340 V (0.0005 V Step) | ||
| Discharge Overcurrent Detection Voltage Accuracy | VDET31: ±1 mV | ||
| Discharge Overcurrent Detection Delay Time | VDET31: 12 ms, 16 ms, 32 ms, 64 ms, 128 ms, 256 ms, 512 ms, 640 ms, 1024 ms, 2048 ms, 3584 ms | ||
| Charge Overcurrent Detection Voltage | -0.0300 V to -0.0030 V (0.0005 V Step) | ||
| Charge Overcurrent Detection Voltage Accuracy | ±1 mV | ||
| Charge Overcurrent Detection Delay Time | 8 ms, 16 ms, 32 ms, 64 ms | ||
| Short Detection Voltage | 0.020 V to 0.150 V (0.001 V Step) | ||
| Short Detection Voltage Accuracy | ±4 mV | ||
| Short Detection Delay Time | 0.28 ms, 0.53 ms | ||
| Conditions for Overcharge Restoration | Auto Release | ||
| Conditions for Overdischarge Restoration | Auto Release | ||
| Package | DFN1616-8-GM | ||
| 0 V Battery Charging | Inhibition Voltage (VNOCHG): 1.000 V to 2.200 V (0.1 V Step) | ||
Protections / Functions
| Temperature Protection | Reset | Alarm | Cell Balance | Cascadable | Open Wire Detection | Wakeup | Short-circuit Current Detection |
|---|---|---|---|---|---|---|---|
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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 |
|---|---|---|---|---|
| NB7147GMxxxxxE4S |
|
DFN1616-8-GM | See datasheet | NB7147GMS |
- 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
NB7147 Series