Lithium-ion Charging Circuit 4056A Description:

The 4056A is a complete single-cell lithium-ion battery with a constant current/constant voltage linear charger. Its ESOP8 package with a heat sink on the bottom and fewer external components makes the 4056A an ideal choice for portable applications. The 4056A is compatible with USB power and adapter power supplies.

Lithium-ion Charging Circuit 4056A Features:

• Please provide the Chinese content to be translated.Battery reverse polarity protection feature

• Up to 1000mA programmable charging current

• No MOSFETs, detection resistors, or isolated diodes required

• Complete linear charger for single-cell lithium-ion battery, in SOP packaging

• Operation with constant current/voltage and a thermal regulation function that maximizes charging rate without overheating risk.

• 4.2V preset charging voltage with accuracy up to ±1%

• Battery charge current monitor for power detection

• Automatic Recharge

• Dual output with charging status, no battery and fault display

• C/10 Charge Termination

• Supply current in standby mode is 55uA.

• 2.9V Trickle Charging

• Soft start limits surge current.

• Battery Temperature Monitoring Function

• ESOP8 packaging
  

Li-ion Charging Circuit 4056A's Limit Values:

• Input Current Voltage (Vcc): -0.3V ~ 8V

• PROG：-0.3V~Vcc+0.3V

• BAT：-0.3V~7V

• TEMP：-0.3V~10V

• CE：-0.3V~10V

• BAT Short-Circuit Duration: Continuous

• BAT pin current: 1200mA

• PROG pin current: 1200uA

• Maximum junction temperature: 145°C

• Operating Temperature Range: -40℃ to 85℃

• Storage Temperature Range: -65℃ to 125℃

• Pin Temperature (Welding Time: 10 seconds): 260℃
  

Lithium-ion Charging Circuit 4056A electrical characteristics:

Any marked ● indicates that this parameter is suitable for the entire operating temperature range; otherwise, it is only valid at TA=25°C, Vcc=5V, unless otherwise specified.