AAT3696 1.6A Li-Ion Battery Charger in a 3x3 TDFN Package
The AAT3696 BatteryManager™ is a single-cell lithiumion (Li-Ion)/Li-Polymer battery charger IC designed to operate from USB ports or AC adapter up to an input voltage of 6.5V or 6.05V (depending on the option1). For increased safety, the AAT3696 also includes over-voltage input protection (OVP) up to 28V. The AAT3696 precisely regulates battery voltage after it has reached 4.2V or 4.375V (depending on the option1) Li-Ion/Polymer battery cells through an extremely low RDS(ON) switch. The charging current can be set by an external resistor up to 1.6A. In case an over-voltage condition occurs from the input, a series switch quickly opens and a fault flag is activated to prevent damage to the battery and charging circuitry. Other fault conditions are monitored in real time. In case of an over-current, battery over-voltage, short circuit, or over-temperature failure, the device will automatically shut down, thus protecting the charging device, control system, and the battery under charge. A status monitoring output pin (STAT) is provided to indicate charging activity. This open-drain output pin can be used to drive an external LED as a charging indicator. The AAT3696 has two charge termination mode selections when the battery voltage has reached the constant voltage level VCO(REG) and the charging current has decreased the termination current level. The AAT3696 offers a 4.9V/30mA LDO linear regulator. This regulator is enabled all the time regardless of the status of the charger and protected by the OVP switch. The AAT3696 is available in the Pb-free, thermally enhanced, space-saving 3x3mm TDFN33-12 package and is rated over the -40°C to +85°C temperature range.
技术特性
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订购信息 Ordering Information
应用领域 APPLICATION
功能框图 Functional Block Diagram
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| 应用技术支持与电子电路设计开发资源下载 | 版本信息 | 大小 |
| AAT3696 数据资料DataSheet下载:pdf | Rev.V2 | 2 页 |
