--- 产品参数 ---
- 充电电流(mA) 600
- 输入电压(V) 3.9-8
- 电池电压(V) 4.2
- 电池节数 1
- 工作模式 CC/CV
- 状态指示 1/2
- 特征 CTC,Low size,OTP,Full voltage±
--- 数据手册 ---
--- 产品详情 ---
The LP4054H is a complete constant-current/constant- voltage
linear charger for single cell lithium-ion batteries. Its SOT23-5
package and low external component count make the LP4054H
ideally suited for portable applications. Furthermore, the
LP4054H is specifically designed to work within USB power
specifications. No external sense resistor is needed, and no
blocking diode is required due to the internal MOSFET
architecture. Thermal feedback regulates the charge current to
limit the die temperature during high power operation or high
ambient temperature. The charge voltage is fixed at 4.2V, and
the charge current can be programmed externally with a single
resistor. The LP4054H automatically terminates the charge
cycle when the charge current drops to 1.5/10th the
programmed value after the final float voltage is reached. When
the input supply (wall adapter or USB supply) is removed, the
LP4054H automatically enters a low current state, dropping the
battery drain current to less than 1μA. Other features include
charge current monitor, automatic recharge and a status pin to
indicate charge termination and the presence of an input
voltage.
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