The BQ7693003DBTR is a part of Texas Instruments' BQ769x0 family, which is a series of battery management ICs. These ICs are used primarily in battery protection systems for lithium-ion batteries, specifically in applications such as electric vehicles, UPS systems, and various types of portable Power solutions.
Pin Function Specifications and Circuit Principle Instructions
The BQ7693003DBTR comes in a VQFN (Very Thin Quad Flat No-lead) package. This package typically has 48 pins, and it features a very compact design for space-constrained applications.
Detailed Pin Function and Description for BQ7693003DBTR (48 pins)Here is a detailed description of all the pins for the BQ7693003DBTR:
Pin Number Pin Name Pin Type Description 1 VSTOR Power Battery storage input voltage, which is connected to the battery pack’s positive terminal. 2 VSS Power Ground connection for the IC. 3 VDD Power Power supply for the device. 4 SCL I/O Serial Clock Line for I2C communication. 5 SDA I/O Serial Data Line for I2C communication. 6 ALERT Output Open-drain output pin used to report fault conditions or other events to a microcontroller. 7 OVP Input Over-voltage protection input. 8 UVP Input Under-voltage protection input. 9 CFG1 I/O Configuration pin that can be set to configure device options or settings. 10 CFG2 I/O Additional configuration pin. 11 REG2 Power Voltage regulator output. 12 TS2 Input Thermal sensor 2 input for temperature sensing of the battery pack. 13 TS1 Input Thermal sensor 1 input for temperature sensing of the battery pack. 14 NC No Connect Pin not connected to any internal circuitry. 15 NC No Connect Pin not connected to any internal circuitry. 16 AUX I/O Auxiliary input/output pin, can be used for custom configurations. 17 B3 Input Battery pack voltage sense for cell 3. 18 B2 Input Battery pack voltage sense for cell 2. 19 B1 Input Battery pack voltage sense for cell 1. 20 B0 Input Battery pack voltage sense for cell 0. 21 B4 Input Battery pack voltage sense for cell 4. 22 B5 Input Battery pack voltage sense for cell 5. 23 B6 Input Battery pack voltage sense for cell 6. 24 B7 Input Battery pack voltage sense for cell 7. 25 VSTOR Power Battery storage input voltage (shared with pin 1). 26 GND Power Ground pin (shared with pin 2). 27 FAULT Output Active low output signaling fault condition. 28 NTC Input Negative Temperature Coefficient (NTC) thermistor input for battery temperature monitoring. 29 C2 Input Capacitor connection for internal filter. 30 C1 Input Capacitor connection for internal filter. 31 ISENSE Input Current sensing input to measure the charging and discharging current. 32 CC2 Input Cell balancing control for cell 2. 33 CC1 Input Cell balancing control for cell 1. 34 CC3 Input Cell balancing control for cell 3. 35 CC4 Input Cell balancing control for cell 4. 36 CC5 Input Cell balancing control for cell 5. 37 CC6 Input Cell balancing control for cell 6. 38 CC7 Input Cell balancing control for cell 7. 39 GND Power Ground connection (shared with pin 26). 40 REG1 Power Internal voltage regulator output. 41 AVSS Power Analog ground for precision internal circuits. 42 VSTOR Power Battery storage input voltage (shared with pin 1 and pin 25). 43 VDD Power Supply voltage for the IC (shared with pin 3). 44 SCL I/O Serial Clock Line for I2C communication (shared with pin 4). 45 SDA I/O Serial Data Line for I2C communication (shared with pin 5). 46 ALERT Output Open-drain alert output (shared with pin 6). 47 OVP Input Over-voltage protection input (shared with pin 7). 48 UVP Input Under-voltage protection input (shared with pin 8).Pin Function FAQ for BQ7693003DBTR
Here is a list of 20 common FAQs, following a Q&A format based on this device’s pin functions:
Q1: What is the function of pin 1, VSTOR on the BQ7693003DBTR?A1: Pin 1 (VSTOR) is the battery storage input voltage, which connects to the positive terminal of the battery pack.
Q2: How do I connect pin 2, VSS, for the BQ7693003DBTR?A2: Pin 2 (VSS) is the ground connection for the IC, which should be connected to the ground of the system.
Q3: What does pin 3, VDD, supply in the BQ7693003DBTR?A3: Pin 3 (VDD) provides the power supply for the device, typically connected to the system's power source.
Q4: What is the purpose of pin 6, ALERT on the BQ7693003DBTR?A4: Pin 6 (ALERT) is an open-drain output used to signal fault conditions or other events, and it typically connects to an interrupt or alert system.
Q5: What is the function of pin 7, OVP?A5: Pin 7 (OVP) is used to monitor over-voltage conditions on the battery, ensuring that the battery voltage does not exceed safe limits.
Q6: How should pin 8, UVP, be used in the circuit?A6: Pin 8 (UVP) monitors under-voltage conditions, protecting the battery from discharging too far below the safe voltage range.
Q7: What does pin 16, AUX, serve as on the BQ7693003DBTR?A7: Pin 16 (AUX) is an auxiliary input/output pin, which can be used for additional configurations or system integration.
Q8: Can you describe the function of pin 13, TS2?A8: Pin 13 (TS2) is a thermal sensor input that allows the device to monitor the battery pack’s temperature for safety.
Q9: How do I configure pin 9, CFG1?A9: Pin 9 (CFG1) is a configuration pin that can be used to configure certain device settings or options.
Q10: What is the purpose of pin 17, B3?A10: Pin 17 (B3) is used to sense the voltage of the third battery cell in the pack.
Q11: How does pin 31, ISENSE, function?A11: Pin 31 (ISENSE) is used to measure the current flow in and out of the battery pack, crucial for overcurrent protection.
Q12: How should pins 19-26 be connected for cell voltage monitoring?A12: Pins 19-26 (B0-B7) sense the individual voltages of each battery cell in the pack, allowing the IC to monitor and protect each cell.
Q13: What does pin 39, GND, do?A13: Pin 39 (GND) is a ground connection that is used to complete the circuit with the system's ground.
Q14: Can I leave pin 14 unused (NC)?A14: Yes, pin 14 (NC) is not connected internally, so it can be left floating or unused in the circuit.
Q15: How do I use pin 25, VSTOR?A15: Pin 25 (VSTOR) is another input for the battery storage voltage, connecting to the positive terminal of the battery pack.
Q16: What is the significance of pin 44, SCL?A16: Pin 44 (SCL) is used for the I2C communication clock line, allowing the device to communicate with other components like microcontrollers.
Q17: What type of input does pin 28, NTC, receive?A17: Pin 28 (NTC) receives the signal from an NTC thermistor, which is used for monitoring battery temperature.
Q18: How do I connect pin 33, CC1, for cell balancing?A18: Pin 33 (CC1) is used to control the balancing of the first cell in the pack, ensuring each cell charges and discharges evenly.
Q19: What is the role of pin 40, REG1?A19: Pin 40 (REG1) is an output from the internal voltage regulator that can power external components if needed.
Q20: How should pin 48, UVP, be configured?A20: Pin 48 (UVP) is the under-voltage protection input, used to monitor if any of the cells in the pack are under their minimum safe voltage threshold.
This comprehensive breakdown provides all of the required information on the BQ7693003DBTR's pins and their respective functions. The pinout and FAQs cover all aspects for proper integration and application.
