NB7142 Series
1-cell Li-ion Battery Protection IC with High-accuracy Overcurrent Detection
NB7142 Series
1-cell Li-ion Battery Protection IC with High-accuracy Overcurrent Detection
拡大
:q
Description
The NB7142 is a one-cell Li- ion / polymer battery protection IC providing overcharge, overdischarge and charge / discharge overcurrent detections and it provides a wide range in the overcurrent detection. The low standby current can achieve longer driving time with a battery of small capacity. In the current detection FET sense type of the NB7142, it improves safety with its high accuracy of over current and short circuit detection.
Spec
| Operating Input Voltage | 1.5 V to 5.0 V (Maximum Rating: 12 V) | ||
| Number of Cells | 1 | ||
| Supply Current | Typ. 1.5 µA | ||
| Standby Current | Max. 0.04 µA (VDET2: Latch type) Max. 0.50 µA (VDET2: Auto release type) |
||
| Overcharge Detection Voltage | 4.2 V to 4.8 V (5 mV Step) | ||
| Overcharge Detection Voltage Accuracy | ±20 mV | ||
| Overcharge Detection Delay Time | 1024 ms | ||
| Overdischarge Detection Voltage | 2.0 V to 3.0 V (50 mV Step) | ||
| Overdischarge Detection Voltage Accuracy | ±50 mV | ||
| Overdischarge Detection Delay Time | 64 ms, 128 ms | ||
| Discharge Overcurrent Detection Voltage | 0.0150 V to 0.1500 V (0.5 mV Step) | ||
| Discharge Overcurrent Detection Voltage Accuracy | ±3 mV (0.015 V to 0.060 V) ±5% (0.060 V to 0.100 V) ±5 mV (0.100 V to 0.150 V) |
||
| Discharge Overcurrent Detection Delay Time | 12 ms, 128 ms | ||
| Charge Overcurrent Detection Voltage | -0.150 V to -0.020 V (0.5 mV Step) | ||
| Charge Overcurrent Detection Voltage Accuracy | ±3 mV (-0.060 V to -0.020 V) ±5% (-0.100 V to -0.060 V) ±5 mV (-0.150 V to -0.100 V) |
||
| Charge Overcurrent Detection Delay Time | 8 ms, 17 ms | ||
| Short Detection Voltage | 0.060 V to 0.400 V (5 mV Step) | ||
| Short Detection Voltage Accuracy | ±5% | ||
| Short Detection Delay Time | 0.3 ms | ||
| Conditions for Overcharge Restoration | Auto Release / Latch | ||
| Conditions for Overdischarge Restoration | Auto Release / Latch | ||
| Package | DFN1212-6-GK | ||
| 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 |
|---|---|---|---|---|---|---|---|---|
 |
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
-
Typical Application
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| NB7142GKxxxxxE4S |
|
DFN1212-6-GK | See datasheet | NB7142GKS |
- 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
-
Purchase, Request for samples and documentsSales 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
NB7142 Series