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24V Input Voltage Switch Mode Battery Charger.
ME4086 ME4086.pdf

No.11734

FEATURES

? Input Supply Range:

  One-cell:4.7V~16V

  Two-cell:10V~20V

  Three-cell:14V~22V

? Maximum input voltage:24V

? Built in anti current backward function

? High Efficiency Current Mode PWM Controller

? Built-in input adaptive function

? Constant Switching Frequency for Minimum Noise

? ±1% charge voltage accuracy

? Automatic Recharge

? Automatic Shutdown When Input Supply isRemoved

? Automatic Trickle Charging of Low Voltage

? Stable with Ceramic Output Capacitor

? Battery Temperature Sensing

DESCRIPTION

The ME4086 is a complete battery charger controller for one (4.2V) or two (8.4V) or three (12.6V) cell lithium-ion battery. The ME4086 provides a small, simple and efficient solution to fast charge Li-ion battery. The ME4086 built in anti current backward function, so the application does not need the blocking diode. An external sense resistor sets the charge current with high accuracy.

An internal resistor divider and precision reference set the final float voltage to one (4.2V) or two (8.4V) or three (12.6V) cell with ±1% accuracy. When the input supply is removed, the ME4086 automatically enters a low current sleep mode, dropping the battery drain current to 3μA.After the charge cycle ends, If the battery voltage drops below one (4.1V) or two (8.2V)or three (12.2V) cell, a new charge cycle will automatically begin.

APPLICATION CIRCUIT
PIN CONFIGUTION
網站地圖
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