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600mA Standalone Linear Li-Ion Battery Charger

型號: LP4054HB5F

--- 產品參數 ---

  • 充電電流(mA) 600
  • 輸入電壓(V) 3.9-8
  • 電池電壓(V) 4.2
  • 電池節(jié)數 1
  • 工作模式 CC/CV
  • 狀態(tài)指示 1/2
  • 特征 CTC,Low size,OTP,Full voltage±

--- 數據手冊 ---

--- 產品詳情 ---

   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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