The BQ24610RGER is a product from Texas Instruments, and it is a battery charge controller designed for managing the charging of lithium-ion or lithium-polymer batteries in systems like portable devices, Power banks, and battery-powered equipment.
Package and Pinout Overview:
Package Type: The BQ24610RGER comes in a VQFN (Very Thin Quad Flat No-leads) package with a pin count of 28 pins.Pin Functions and Descriptions:
Pin Number Pin Name Pin Function Description 1 DPM Dynamic Power Management input for charging regulation. 2 CHG Charging status output. Indicates if charging is active. 3 VSTOR The input voltage from the external source (typically from a power adapter). 4 VSS Ground pin. Connect to the system ground. 5 PGND Power ground pin. 6 SYS System voltage output pin. It provides the output voltage to the battery or load. 7 FET_BAT Control pin for the N-channel MOSFET on the battery side. 8 TS Thermistor input pin to monitor the temperature of the battery. 9 C1+ Positive terminal of the capacitor used for the input filter. 10 C1- Negative terminal of the capacitor used for the input filter. 11 FET_SYS System FET control pin. Used for disconnecting or connecting the battery from the system. 12 ISET Input current limit set pin. This pin determines the maximum input current. 13 BAT Battery voltage sense input pin. Used for detecting the battery voltage. 14 CHARGE Battery charging enable pin. Control the charging process. 15 STAT Status output pin. Provides status information regarding charging (e.g., charging complete, in progress). 16 ALARM Alarm output pin. This pin is used to indicate fault conditions like overvoltage, undervoltage, etc. 17 VBAT Battery voltage input pin. Connected to the battery voltage. 18 ISENSE Current sense input for monitoring charge/discharge current. 19 OV Overvoltage protection input. This pin can trigger an overvoltage condition. 20 UV Undervoltage protection input. Used to detect undervoltage conditions. 21 FET_CHG Charge FET control pin. 22 STDBY Standby mode control input. Controls whether the charger is in standby mode or active. 23 PROG Program pin for setting specific charge parameters, such as termination voltage or current. 24 VREF Reference voltage output. Used to provide a stable reference for various internal circuits. 25 BOOT Bootstrapping capacitor pin. Essential for the internal gate driver circuit for MOSFET control. 26 AVSS Analog ground pin. 27 EN Enable pin. This pin allows enabling or disabling the charger operation. 28 PVDD Power supply for the charger.20 Common FAQs (with answers):
Q: What is the BQ24610RGER used for? A: The BQ24610RGER is a lithium-ion battery charger IC designed to control the charging process, including input current regulation and battery voltage monitoring.
Q: How do I enable or disable charging with the BQ24610RGER? A: Charging can be enabled or disabled using the EN pin. A high signal on this pin enables charging, while a low signal disables it.
**Q: What is the purpose of the *TS* pin on the BQ24610RGER?** A: The TS pin is used to connect a thermistor to monitor the battery temperature. This prevents charging if the temperature is out of the acceptable range.
**Q: What does the *CHG* pin indicate?** A: The CHG pin provides a signal indicating whether the battery is currently charging or if the charger is idle.
**Q: What should I connect to the *BAT* pin?** A: The BAT pin should be connected to the positive terminal of the battery to monitor its voltage and manage the charging process.
Q: How do I set the charging current on the BQ24610RGER? A: The charging current is determined using external resistors connected to the PROG pin to set the desired charging profile.
**Q: Can the *BAT* pin be used to charge the battery?** A: Yes, the BAT pin is used to monitor the battery and control charging, ensuring the voltage and current are properly managed.
**Q: What is the *FETSYS* pin for?** A: The FETSYS pin controls the FET that connects or disconnects the battery from the system, protecting against over-discharge or system faults.
Q: How do I monitor the charging status? A: The STAT pin outputs a status signal to indicate the charging state (e.g., charging, complete, or fault).
Q: What happens when an overvoltage condition occurs? A: If the input voltage exceeds the threshold, the OV pin will trigger a fault condition to stop the charging process.
**Q: What is the function of the *ISENSE* pin?** A: The ISENSE pin is used to sense the current during the charge or discharge process, ensuring proper current regulation.
**Q: How does the *DPM* pin work?** A: The DPM pin manages the power flow to ensure that the system doesn’t exceed the power limits of the charger.
**Q: What is the function of the *PVDD* pin?** A: The PVDD pin provides power to the charger. It connects to the input power supply.
**Q: Can the *VSTOR* pin be used for input power?** A: Yes, the VSTOR pin is used to provide the input voltage from the power source to charge the battery.
Q: How do I manage the battery voltage range? A: The battery voltage is monitored through the BAT pin, and the charging process is adjusted based on this feedback.
Q: Can I control the charge termination with the BQ24610RGER? A: Yes, the charging termination can be set using external resistors connected to the PROG pin.
**Q: What is the role of the *FETBAT* pin?** A: The FETBAT pin controls the MOSFET that connects or disconnects the battery from the charger.
Q: Can the BQ24610RGER handle high power systems? A: Yes, it is designed to work with various battery-powered systems, including those with high current requirements.
**Q: What happens when the *UV* pin detects undervoltage?** A: If the UV pin detects an undervoltage condition, charging will be paused or stopped to prevent damage to the system.
**Q: How does the *ALARM* pin work?** A: The ALARM pin indicates fault conditions such as overvoltage, undervoltage, or temperature issues during the charging process.
This description includes the full pinout for the BQ24610RGER, detailing all 28 pins, their functionality, and answering some of the common questions about the IC.
