Products
Products
XYT6983
The XYT6983 is a highly integrated synchronous boost charger for three Li-ion batteries in series (up to 1.5A in QFN package and 2A in ESSOP10 package). For different portable applications, the charging current can be programmed using external resistors.
XYT6983 has four charging processes: short circuit (SC), trickle (TC), constant current (CC) and constant voltage (CV) : Short circuit (SC) can charge 0V batteries; Trickle charging (TC) A battery that can be fully discharged by trickle charging; Constant current charging (CC) can quickly fill t
XYT6983 has four charging processes: short circuit (SC), trickle (TC), constant current (CC) and constant voltage (CV) : Short circuit (SC) can charge 0V batteries; Trickle charging (TC) A battery that can be fully discharged by trickle charging; Constant current charging (CC) can quickly fill t
XYT6983 Description：
The XYT6983 is a highly integrated synchronous boost charger for three Li-ion batteries in series (up to 1.5A in QFN package and 2A in ESSOP10 package). For different portable applications, the charging current can be programmed using external resistors.
XYT6983 has four charging processes: short circuit (SC), trickle (TC), constant current (CC) and constant voltage (CV) : Short circuit (SC) can charge 0V batteries; Trickle charging (TC) A battery that can be fully discharged by trickle charging; Constant current charging (CC) can quickly fill the battery; Constant voltage charging (CV) ensures a safe full battery.
The charging cutoff voltage of the XYT6983 can be adjusted by an external resistor, and the charging current can also be set by an external resistor. When the charging current drops to 1/10 of the set value, the XYT6983 will automatically end the charging process, continuously detect the battery voltage, and automatically recharge when it drops to a certain threshold. When the input voltage (USB source or AC adapter) is removed, the battery leakage is 25uA.
The XYT6983 integrates charging and full tips, as well as exception indications. Powerful protection features include input overvoltage protection (OVP), battery OVP, battery short circuit protection, thermal shutdown, battery temperature monitor, and configurable timer to prevent prolonged charging of dead batteries.
XYT6983 has four charging processes: short circuit (SC), trickle (TC), constant current (CC) and constant voltage (CV) : Short circuit (SC) can charge 0V batteries; Trickle charging (TC) A battery that can be fully discharged by trickle charging; Constant current charging (CC) can quickly fill the battery; Constant voltage charging (CV) ensures a safe full battery.
The charging cutoff voltage of the XYT6983 can be adjusted by an external resistor, and the charging current can also be set by an external resistor. When the charging current drops to 1/10 of the set value, the XYT6983 will automatically end the charging process, continuously detect the battery voltage, and automatically recharge when it drops to a certain threshold. When the input voltage (USB source or AC adapter) is removed, the battery leakage is 25uA.
The XYT6983 integrates charging and full tips, as well as exception indications. Powerful protection features include input overvoltage protection (OVP), battery OVP, battery short circuit protection, thermal shutdown, battery temperature monitor, and configurable timer to prevent prolonged charging of dead batteries.
XYT6983 Features:
Configurable charging current up to 2A
Support 12.6V, 12.9V, 13.05V, 13.2V full voltage
Input voltage protection up to 28V
Wide input operating voltage range: 3.0V~9V
Peak efficiency up to 96% and heavy-duty efficiency up to 90%
External switch off EN function
Adjustable charging current up to 2A
Supports thermal regulation of charging current up to 110 ° C
Complete charging status indication
Ultra-low thermal resistance ESSOP10 package (θJC=3.9℃/W)
Programmable adaptive input current limiting protection
Provides indication and control after load shutdown when battery is low
Input protection function: input undervoltage lock, input overvoltage protection,
Battery end protection: charge timeout protection, short circuit protection, overvoltage protection
160℃ overtemperature protection
Supports hot swap of battery packs with integrated NTC resistors
Support 12.6V, 12.9V, 13.05V, 13.2V full voltage
Input voltage protection up to 28V
Wide input operating voltage range: 3.0V~9V
Peak efficiency up to 96% and heavy-duty efficiency up to 90%
External switch off EN function
Adjustable charging current up to 2A
Supports thermal regulation of charging current up to 110 ° C
Complete charging status indication
Ultra-low thermal resistance ESSOP10 package (θJC=3.9℃/W)
Programmable adaptive input current limiting protection
Provides indication and control after load shutdown when battery is low
Input protection function: input undervoltage lock, input overvoltage protection,
Battery end protection: charge timeout protection, short circuit protection, overvoltage protection
160℃ overtemperature protection
Supports hot swap of battery packs with integrated NTC resistors
XYT6983 Application:
Mobile power supply
Mobile phone, MP3 player, MP4 player
PSP games, NDS games
Smart door lock
Mobile phone, MP3 player, MP4 player
PSP games, NDS games
Smart door lock
XYT6983 Purchase Guide:
The XYT6983 is available in two different packages:
QFN16: Has a smaller size, easy integration, better battery protection, adapt to more battery types and input environments.
ESSOP10: Has better heat dissipation, supports maximum 2A charging, and is simpler to use.
QFN16: Has a smaller size, easy integration, better battery protection, adapt to more battery types and input environments.
ESSOP10: Has better heat dissipation, supports maximum 2A charging, and is simpler to use.
XYT6983 Purchase Information:
Part | Package | Top Mark |
XYT6983QV | QFN3×3-16 | XYT6983QV YYWWB |
XYT6983ES | ESSOP10 | XYT6983ES YYWWB |
YY: production year code. WW: Production week code. B: Fixed version number | ||
XYT6983 Typical application topology:
NOTE:
Boost output pin BD. The 10μF voltage regulator ceramic capacitor should be as close to the chip as possible, and the loop from BD to GND should be as short as possible.
The NTC resistor is generally located inside the battery. The figure shows a battery pack in the dotted box for convenience. In typical NTC applications, it is necessary to use a 10K resistance NTC with a B value of 3380K in series with an R2(3K) resistor and then a R1(16K) resistor connected to the VDD pin in series, which can ensure the normal charging of the battery in the range of 0℃~60℃. If other combinations are used, please refer to the NTC voltage for each temperature threshold given in the NTC function explanation on page 8 for design or consult the FAE.
For the bottom ePad GND pin, a large copper-covered area should be used to connect to the PCB ground plane, which helps to minimize PCB conduction loss and thermal stress, and prevent the drop in charging current caused by high chip temperature.
When the LED indicator is in use, the current limiting resistor should be connected to VDD, 3K is recommended.
Boost output pin BD. The 10μF voltage regulator ceramic capacitor should be as close to the chip as possible, and the loop from BD to GND should be as short as possible.
The NTC resistor is generally located inside the battery. The figure shows a battery pack in the dotted box for convenience. In typical NTC applications, it is necessary to use a 10K resistance NTC with a B value of 3380K in series with an R2(3K) resistor and then a R1(16K) resistor connected to the VDD pin in series, which can ensure the normal charging of the battery in the range of 0℃~60℃. If other combinations are used, please refer to the NTC voltage for each temperature threshold given in the NTC function explanation on page 8 for design or consult the FAE.
For the bottom ePad GND pin, a large copper-covered area should be used to connect to the PCB ground plane, which helps to minimize PCB conduction loss and thermal stress, and prevent the drop in charging current caused by high chip temperature.
When the LED indicator is in use, the current limiting resistor should be connected to VDD, 3K is recommended.
Typical application topology of XYT6983 (ESSOP10 package) :
NOTE:
Boost output pin BD. The 10μF voltage regulator ceramic capacitor should be as close to the chip as possible, and the loop from BD to GND should be as short as possible.
The NTC resistor is generally located inside the battery. The figure shows a battery pack in the dotted box for convenience. In typical NTC applications, it is necessary to use a 10K resistance NTC with a B value of 3380K in series with an R2(3K) resistor and then a R1(16K) resistor connected to the VDD pin in series, which can ensure the normal charging of the battery in the range of 0℃~60℃. If other combinations are used, please refer to the NTC voltage for each temperature threshold given in the NTC function explanation on page 8 for design or consult the FAE.
For the bottom ePad GND pin, a large copper-covered area should be used to connect to the PCB ground plane, which helps to minimize PCB conduction loss and thermal stress, and prevent the drop in charging current caused by high chip temperature.
When the LED indicator is in use, the current limiting resistor should be connected to VDD, 3K is recommended.
Boost output pin BD. The 10μF voltage regulator ceramic capacitor should be as close to the chip as possible, and the loop from BD to GND should be as short as possible.
The NTC resistor is generally located inside the battery. The figure shows a battery pack in the dotted box for convenience. In typical NTC applications, it is necessary to use a 10K resistance NTC with a B value of 3380K in series with an R2(3K) resistor and then a R1(16K) resistor connected to the VDD pin in series, which can ensure the normal charging of the battery in the range of 0℃~60℃. If other combinations are used, please refer to the NTC voltage for each temperature threshold given in the NTC function explanation on page 8 for design or consult the FAE.
For the bottom ePad GND pin, a large copper-covered area should be used to connect to the PCB ground plane, which helps to minimize PCB conduction loss and thermal stress, and prevent the drop in charging current caused by high chip temperature.
When the LED indicator is in use, the current limiting resistor should be connected to VDD, 3K is recommended.
XYT6983 Pin arrangement:
.jpg)
XYT6983 Pin function description:
Pin number | Pin name | Description | |
| QFN16 | ESSOP10 | ||
| 1 | 无 | TIM | Charge time limit pin. Ground this pin to a capacitor. An internal current source charges and discharges the capacitor. The TC charge time limit is about 1/10 of the CC charge time. |
| 2 | 无 | SYSRT | System on/off control pin, connected to the enable pin after the battery power supply or used to indicate the battery level. When the battery voltage is lower than 9V, the SYSRT pin outputs 0V, indicating that the battery is low, and can actively turn off the battery rear load in the case of low battery power; When the battery voltage is higher than 9V, the SYSRT pin outputs the VDD voltage, indicating that the battery is charged, and the battery is powered on. |
| 3 | 无 | EN | Charge enable control pin. The high logic function is enabled and the low logic function is disabled |
| 4 | 2 | STAT | Charge status indicator pin. Open the leakage output pin and connect the LED lamp to SVIN through the current limiting resistor to indicate the charging process. Charging, light on; Full, lights out. |
| 5 | 无 | PGND | Power-wise. |
| 6 | 3 | BST | Bootstrap door drive pin. A high quality 100nF ceramic capacitor needs to be connected between the BST and LX to bias the internal high voltage side gate driver. Please note that this capacitor is voltage resistant. |
| 7 | 4 | LX | Internal power switch node. Externally connected inductors and CBST capacitors. |
| 8 | 5 | BD | Boost the output. To bypass the 10uF ceramic capacitor to GND, it needs to be close to the chip. |
| 9 | 6 | BAT | Connect to the positive terminal of the battery. |
| 10 | 无 | SGND | Signal ground. |
| 11 | 8 | SVIN | Power input pin. |
| 12 | 7 | VDD | Internal power supply pin. Connect at least 2.2uF ceramic capacitor to GND. |
| 13 | 9 | ICHG | Constant current charge current set pin. Connect an external 1% precision resistor to the ground to set the charging current. Under short-circuit charging (SC), the pin voltage is 0.05V; Under trickle charging (TC), the pin voltage is 0.1V; Under constant current charge (CC), the voltage of this pin is fixed at 1V. In all modes of the charging process, the charging current can be estimated by measuring the voltage of this pin, with the formula:.jpg) |
14 （1） | 10 | ILIM | Adaptive input current limit setting pin. Connect a resistance divider between SVIN and GND to configure a minimum input voltage limit threshold. |
15 （2） | 1 | NTC | Battery temperature detection pin. When the NTC is between 27% and 65% of the VDD, the chip charges normally. The typical UTP threshold is 65%VDD, and the typical OTP threshold is 27%VDD. If the TEMP pin voltage is less than 27% of the VDD or greater than 65% of the input voltage, indicating that the battery temperature is too low or too high, the charge is suspended. |
| 16 | 无 | CV | Constant voltage charging voltage configuration pin. |
| EP | EP | GND | Package the bottom cooling pad, connected to a large copper-covered plane, to achieve better heat dissipation. |
XYT6983 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
