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MAX1898: Linear Charger for Single-Cell Li+ Battery Data Sheet (Rev. 0)2/14/2002PDF210K
Overview
Features and Benefits
Product Details
The MAX1898, with an external PNP or PMOS transistor, forms a complete charger for 1-cell lithium-ion (Li+) batteries. The MAX1898 provides accurate constant-current/constant-voltage charging. Battery regulation voltage accuracy is ±0.75% for optimum battery performance and cycle life. Charging current is user set, but is sensed internally so no external current-sense resistor is needed. The MAX1898 also provides outputs to monitor charge status, presence-of-input power source, and charge current. Additional features include shutdown, optional charge-cycle restart without input-power cycling, selectable charge termination safety timer, and low-current preconditioning for deeply discharged cells.
The MAX1898 offers the maximum integration and functionality in the smallest, most basic application circuit possible. Very few external components are required.
The MAX1898 offers two versions to safely charge all Li+ battery chemistries. The battery regulation voltage is 4.2V for the MAX1898EUB42 and 4.1V for the MAX1898EUB41. Both are available in a 10-pin ultra-thin µMAX package.
Applications
- Cell Phones
- Cradle Chargers
- PDAs
- Self-Charging Battery Packs
- Single-Cell Li+ Powered Portables
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Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX1898EUB41+ | Material Declaration | Reliability Data | 10-MINI_SO-N/A | |
| MAX1898EUB41+T | Material Declaration | Reliability Data | 10-MINI_SO-N/A | |
| MAX1898EUB42+ | Material Declaration | Reliability Data | 10-MINI_SO-N/A | |
| MAX1898EUB42+T | Material Declaration | Reliability Data | 10-MINI_SO-N/A | |
| Wafer Fabrication Data |
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