The AXS4054 is a single lithium-ion battery constant current/constant voltage linear charger with a simple external application circuit ideal for portable device applications, suitable for USB power supply and adapter power supply operation, internal with anti-reverse charging circuit, no need for external isolation diodes. The thermal feedback automatically adjusts the charging current to limit the chip temperature under high-power operation or high ambient temperature conditions.
    The AXS4054 charge cut-off voltage is 4.2V, and the charging current can be set with an external resistor. When the charging current drops to 1/10 of the set value, the AXS4054 will automatically end the charging process.
    When the input voltage is removed, the AXS4054 automatically enters the low current standby state and the standby current drops to 05uA.

Maximum charging current: 600mA
Ultra-low power consumption 0.5uA
No MOSFETs, detection resistors, and isolation diodes required
Intelligent thermal regulation for maximum charging rate
Intelligent recharging function
Precharge voltage: 4.2V
C/10 charge termination
2.9V trickle charging threshold
Battery anti-reverse connection function

Charging base
Bluetooth headset, GPS