产品详情

2.5A带动态路径管理的单节锂电开关型充电器ETA6003Q3Q，科瑞芯深圳热销中

        ETA6003 is a switching Li-Ion battery charger with dynamic power-path control and input current limiting. When a battery is connected, depending on the battery voltage, the DC-DC switching regulator either pre-conditions, fast-charges the battery or just regulates a system voltage (VSYS) to a preset voltage. It does not require an external sense resistor for current sensing. The charging current is determined by programming ISET1 or ISET2 pin, depending on the state of the USB_DET. If USB_DET is low, indicating a valid AC adapter input is present, the charge current is set by ISET1; otherwise, it is set by ISET2. When the battery voltage reaches the termination voltage i.e. 4.2V, the charging path disconnects SYS to BATT. The ETA6003 also includes a dynamic power path when the SYS load current exceeds current limit of the DCDC regulator internally set, the SYS voltage falls below VBATT, ETA6003 turns on the power-path to supplement the system load through the battery.

产品型号：ETA6003

封装：QFN3X3-16

产品应用：平板电脑、智能手机、移动电源、其他含大容量锂电池的电子设备

产品特性：

• 输入电压达6.5V

• 2.5A充电电流

• 动态路径管理

• 输入维持电压4.5V

• 电池充电截止电压4.2V

• 两级充电电流设定

• 无需毫欧级精密电阻

• 高达95%的转换效率

• 3MHz开关频率

• 空载待机电流70uA