NJW4120 Series
Lithium-ion Battery Charger Controller IC with Timer
NJW4120 Series
Lithium-ion Battery Charger Controller IC with Timer
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Description
The NJW4120 is a 1-cell and 2-cell lithium ion battery charge control IC with a built-in AC-DC secondary side control feature. Using a photocoupler to directly feed back optimum charging voltage and current information to the primary side, it increases energy efficiency, makes possible a smaller charger, and conserves energy. Charging current can be freely set and therefore it is possible to optimize charging according to battery capacity. As safety features it has over voltage, over discharge, temperature detection and a charge over timer. Also, the adaptor and the charge control circuit are integrated on one chip.
Spec
| Standard | |
|---|---|
| Supply Voltage | 2.7V to 14V |
| Operating Current | Typ. 2mA |
| Structure | Bi-CMOS Technology |
| Wide Operating Temperature | -20℃ to +85℃ |
| Junction Temp. | +125℃ |
| Package | SSOP20 |
| Note | Charge Control Feedback by Photocoupler Adjustable Charge Voltage Adjustable Pre-Charge and Full Charge Current Temperature Monitor Over Charge Timer Internal Re-Charge function Delay timers and Hysteresis inputs for high noise immunity Over Discharge Battery Detect Over Voltage Protection |
Technical Documents
Quality & Packages
- 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.
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
NJW4120 Series