Products
Products
9017R.
The 9017R. is a complete system integrated circuit that manages the charging function of lithium batteries, providing fast charging and maximizing battery life.
9017R. Monitor the condition of the battery, if the battery voltage is lower than 2.9V, decide whether it needs to be pre-charged. The precharge current can be set in any range from 7.5mA to 120mA via an external resistor. The pre-charged state keeps the battery in good condition and extends battery life. Once the battery voltage reaches 2.9V, the 9017R.will automatically convert to a constant current (CC) charge cycle. The internal current is set to more than 6 times the current at pre-charge. The constant current cycle function will minimize the time required to charge when the battery is close to full saturation, about 4.15V, 9017R. Will automatically convert to a constant voltage (CV) charge cycle. During the constant voltage charging cycle, the charging current will be reduced to gradually saturate the battery without the risk of supersaturation, which is necessary because lithium batteries cannot supersaturate 50mV, otherwise there is a risk of explosion.
9017R. Monitor the condition of the battery, if the battery voltage is lower than 2.9V, decide whether it needs to be pre-charged. The precharge current can be set in any range from 7.5mA to 120mA via an external resistor. The pre-charged state keeps the battery in good condition and extends battery life. Once the battery voltage reaches 2.9V, the 9017R.will automatically convert to a constant current (CC) charge cycle. The internal current is set to more than 6 times the current at pre-charge. The constant current cycle function will minimize the time required to charge when the battery is close to full saturation, about 4.15V, 9017R. Will automatically convert to a constant voltage (CV) charge cycle. During the constant voltage charging cycle, the charging current will be reduced to gradually saturate the battery without the risk of supersaturation, which is necessary because lithium batteries cannot supersaturate 50mV, otherwise there is a risk of explosion.
9017R.Description
The 9017R. is a complete system integrated circuit that manages the charging function of lithium batteries, providing fast charging and maximizing battery life.
9017R. Monitor the condition of the battery, if the battery voltage is lower than 2.9V, decide whether it needs to be pre-charged. The precharge current can be set in any range from 7.5mA to 120mA via an external resistor. The pre-charged state keeps the battery in good condition and extends battery life. Once the battery voltage reaches 2.9V, the 9017R.will automatically convert to a constant current (CC) charge cycle. The internal current is set to more than 6 times the current at pre-charge. The constant current cycle function will minimize the time required to charge when the battery is close to full saturation, about 4.15V, 9017R. Will automatically convert to a constant voltage (CV) charge cycle. During the constant voltage charging cycle, the charging current will be reduced to gradually saturate the battery without the risk of supersaturation, which is necessary because lithium batteries cannot supersaturate 50mV, otherwise there is a risk of explosion. 9017R. Ensure that the lithium charge is fully charged, but does not enter a supersaturated state. After charging is complete, the 9017R.will enter off mode, reducing the internal power consumption to less than 35uA. This feature enables the 9017R. to be applied to the interior of portable devices and consume almost no energy when the device is not working.
The 9017R. also provides on-chip temperature protection. When the temperature reaches a predetermined level and the battery is in danger of overheating, the 9017R. will reduce the charging current and gradually lower the temperature. Provide proper protection for battery charging.
9017R. The package is SOT23-6 (9017) and SOP-8(9017S)
9017R. Features
The maximum charging current can be adjusted to 500mA.
No external MOSFETs, resistors, or blocking diodes are required.
Constant current/constant voltage operation with thermal protection ensures maximum charging speed
Without the risk of overheating.
Charge a single lithium battery directly from the USB port.
VBAT terminal output preset charging voltage 4.2V, ±1% accuracy.
Integrated complete charging status display function to simplify peripheral circuits.
2.9V trickle charging threshold.
The power supply current is 35uA in off mode.
With overheating protection function.
Resistant to ESD above 2KV.
Adopts SOT23-6 (9017), SOP-8(9017S) package form.
9017R. Application
Cell phone
MP3
palmtop
9017R. Application circuit diagram
The 9017R. is a complete system integrated circuit that manages the charging function of lithium batteries, providing fast charging and maximizing battery life.
9017R. Monitor the condition of the battery, if the battery voltage is lower than 2.9V, decide whether it needs to be pre-charged. The precharge current can be set in any range from 7.5mA to 120mA via an external resistor. The pre-charged state keeps the battery in good condition and extends battery life. Once the battery voltage reaches 2.9V, the 9017R.will automatically convert to a constant current (CC) charge cycle. The internal current is set to more than 6 times the current at pre-charge. The constant current cycle function will minimize the time required to charge when the battery is close to full saturation, about 4.15V, 9017R. Will automatically convert to a constant voltage (CV) charge cycle. During the constant voltage charging cycle, the charging current will be reduced to gradually saturate the battery without the risk of supersaturation, which is necessary because lithium batteries cannot supersaturate 50mV, otherwise there is a risk of explosion. 9017R. Ensure that the lithium charge is fully charged, but does not enter a supersaturated state. After charging is complete, the 9017R.will enter off mode, reducing the internal power consumption to less than 35uA. This feature enables the 9017R. to be applied to the interior of portable devices and consume almost no energy when the device is not working.
The 9017R. also provides on-chip temperature protection. When the temperature reaches a predetermined level and the battery is in danger of overheating, the 9017R. will reduce the charging current and gradually lower the temperature. Provide proper protection for battery charging.
9017R. The package is SOT23-6 (9017) and SOP-8(9017S)
9017R. Features
The maximum charging current can be adjusted to 500mA.
No external MOSFETs, resistors, or blocking diodes are required.
Constant current/constant voltage operation with thermal protection ensures maximum charging speed
Without the risk of overheating.
Charge a single lithium battery directly from the USB port.
VBAT terminal output preset charging voltage 4.2V, ±1% accuracy.
Integrated complete charging status display function to simplify peripheral circuits.
2.9V trickle charging threshold.
The power supply current is 35uA in off mode.
With overheating protection function.
Resistant to ESD above 2KV.
Adopts SOT23-6 (9017), SOP-8(9017S) package form.
9017R. Application
Cell phone
MP3
palmtop
9017R. Application circuit diagram
9017R. Pin diagram and description
9017R. Functional block diagram
Please submit your basic information, send an email to Sales@ChipSourceTek.com, or call us at 13823761625 (same number as WeChat), and we will contact you as soon as possible!
WeChat Official Account
WeChat Service
Email
QQ
13823761625
