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CL4056
The CL4056 is an excellent single-section lithium-ion battery constant current/constant voltage linear charger.
The CL4056's ESOP8 package with fewer peripheral components makes it ideal for portable products and for powering USB power supplies as well as adapter power supplies. Based on a special internal MOSFET architecture and anti-reverse charging circuit, the CL4056 does not require external detection resistors and isolation diodes. When the external ambient temperature is too high or in high-power applications, the thermal feedback can adjust the charging current to reduce the chip temperature. The charging voltage is fixed at 4.24V, while the charging current can be set externally via a resistor.
The CL4056's ESOP8 package with fewer peripheral components makes it ideal for portable products and for powering USB power supplies as well as adapter power supplies. Based on a special internal MOSFET architecture and anti-reverse charging circuit, the CL4056 does not require external detection resistors and isolation diodes. When the external ambient temperature is too high or in high-power applications, the thermal feedback can adjust the charging current to reduce the chip temperature. The charging voltage is fixed at 4.24V, while the charging current can be set externally via a resistor.
CL4056 Description：
The CL4056 is an excellent single-section lithium-ion battery constant current/constant voltage linear charger. The CL4056's ESOP8 package with fewer peripheral components makes it ideal for portable products and for powering USB power supplies as well as adapter power supplies.
Based on a special internal MOSFET architecture and anti-reverse charging circuit, the CL4056 does not require external detection resistors and isolation diodes. When the external ambient temperature is too high or in high-power applications, the thermal feedback can adjust the charging current to reduce the chip temperature. The charging voltage is fixed at 4.24V, while the charging current can be set externally via a resistor. When the charging current drops to 1/10 of the set value after reaching the final floating charge voltage, the chip will terminate the charging cycle.
When the input voltage is disconnected, the CL4056 enters the sleep state, and the battery leakage current will drop below 1uA. The CL4056 can be set to stop mode, at which point the chip static current drops to 35uA.
The CL4056 also includes additional features: battery temperature monitoring, undervoltage locking, automatic recharging and two status pins to display charge and charge termination.
Based on a special internal MOSFET architecture and anti-reverse charging circuit, the CL4056 does not require external detection resistors and isolation diodes. When the external ambient temperature is too high or in high-power applications, the thermal feedback can adjust the charging current to reduce the chip temperature. The charging voltage is fixed at 4.24V, while the charging current can be set externally via a resistor. When the charging current drops to 1/10 of the set value after reaching the final floating charge voltage, the chip will terminate the charging cycle.
When the input voltage is disconnected, the CL4056 enters the sleep state, and the battery leakage current will drop below 1uA. The CL4056 can be set to stop mode, at which point the chip static current drops to 35uA.
The CL4056 also includes additional features: battery temperature monitoring, undervoltage locking, automatic recharging and two status pins to display charge and charge termination.
Programmable charging current 1000mA
No need for external MOSFETs, resistance detection and isolation diodes
Complete linear charger in ESOP8 package for single lithium batteries
Constant current/constant voltage operation and thermal regulation that maximizes charge rates without the risk of overheating.
Accuracy up to ±1% of 4.24V precharge voltage
Charge current monitor output for battery level detection
Automatic recharge
Charging status Dual output, no battery and fault status display
C/10 charge termination
The static current in shutdown mode is 35uA
2.9V trickle charge
Battery temperature monitoring
Soft start limits inrush current
BAT Input anti-reverse protection
Can be activated at 0V
The CL4056 is available in ESOP8 and DFN2*2-8L packages
No need for external MOSFETs, resistance detection and isolation diodes
Complete linear charger in ESOP8 package for single lithium batteries
Constant current/constant voltage operation and thermal regulation that maximizes charge rates without the risk of overheating.
Accuracy up to ±1% of 4.24V precharge voltage
Charge current monitor output for battery level detection
Automatic recharge
Charging status Dual output, no battery and fault status display
C/10 charge termination
The static current in shutdown mode is 35uA
2.9V trickle charge
Battery temperature monitoring
Soft start limits inrush current
BAT Input anti-reverse protection
Can be activated at 0V
The CL4056 is available in ESOP8 and DFN2*2-8L packages
Mobile phone, PDA
MP3, MP4 player
recharger
Digital camera
Electronic dictionary
Bluetooth, GPS navigator
Portable equipment
MP3, MP4 player
recharger
Digital camera
Electronic dictionary
Bluetooth, GPS navigator
Portable equipment
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