The part number "TPS65910A3A1RSLR" is associated with the Texas Instruments (TI) brand. It is a Power management IC (PMIC) primarily used for mobile and portable systems like smartphones and tablets, as well as for various other embedded applications.
Pin Function Specifications and Circuit Principles
The TPS65910A3A1RSLR is a highly integrated power management IC designed to provide power sequencing and management for processors in portable and embedded systems. It integrates several functions, such as voltage regulators, PMIC control, and protection features. Here, I’ll provide a breakdown of its pinout and functionality, as well as an FAQ list based on your request.
Packaging and Pinout:
Package Type: The "TPS65910A3A1RSLR" typically comes in a QFN-48 (Quad Flat No-lead) package. Number of Pins: This part has 48 pins.Pinout Description:
Below is the Pin Function Description Table for the TPS65910A3A1RSLR.
Pin Number Pin Name Pin Function Description 1 PGND Power ground. Used for the ground connection of the power system. 2 IN Input voltage to the device. It is the primary input voltage supply. 3 EN1 Enable pin for regulator 1. High to enable, low to disable. 4 EN2 Enable pin for regulator 2. High to enable, low to disable. 5 VSTBY Standby voltage output for low-power mode operation. 6 VDD1 Voltage output 1. Typically used for core voltage. 7 VDD2 Voltage output 2. Typically used for I/O voltage. 8 VDD3 Voltage output 3. Typically used for other system voltages. 9 VDD4 Voltage output 4. This output is used for system-specific voltages. 10 VDD5 Voltage output 5. Generally used for peripheral or auxiliary power. 11 RESET Reset output to the system. It indicates that the voltage rails have stabilized. 12 PGOOD Power good signal indicating the output voltage is within a valid range. 13 THERM Thermal shutdown signal. Activated when the IC’s internal temperature exceeds a limit. 14 FAULT Fault indicator. Activates if a fault condition is detected. 15 OUT1 Output 1 for auxiliary power, typically used for memory. 16 OUT2 Output 2 for auxiliary power, typically used for analog components. 17 OUT3 Output 3 for auxiliary power. Used for powering specific subsystems. 18 OUT4 Output 4 for additional power. Typically used for sensors or RF components. 19 OUT5 Output 5 for power distribution to other parts of the system. 20 VREGSENSE Voltage sensing input for regulation. Used to monitor output voltage for stability. 21 VREF Reference voltage input for internal regulator control. 22 EN5 Enable pin for regulator 5. High to enable, low to disable. 23 EN6 Enable pin for regulator 6. High to enable, low to disable. 24 VDDADJ Voltage adjust pin for fine-tuning output voltage. 25 GND Ground pin for the IC. This is the primary ground return for the device. 26 FB1 Feedback pin for regulator 1. Used for setting output voltage via external resistors. 27 FB2 Feedback pin for regulator 2. Used for setting output voltage via external resistors. 28 FB3 Feedback pin for regulator 3. Used for setting output voltage via external resistors. 29 FB4 Feedback pin for regulator 4. Used for setting output voltage via external resistors. 30 FB5 Feedback pin for regulator 5. Used for setting output voltage via external resistors. 31 FB6 Feedback pin for regulator 6. Used for setting output voltage via external resistors. 32 I2C_SCL I2C clock line for Communication with external devices. 33 I2C_SDA I2C data line for communication with external devices. 34 FAULT# Active-low fault indicator output. Shows if a fault condition occurs. 35 VIO1 Voltage input/output for interface 1. Typically used for I/O devices. 36 VIO2 Voltage input/output for interface 2. Typically used for I/O devices. 37 GND2 Additional ground for the power system. 38 VIO3 Voltage input/output for interface 3. Typically used for I/O devices. 39 VIO4 Voltage input/output for interface 4. Typically used for I/O devices. 40 NTC Negative Temperature Coefficient input for thermal monitoring. 41 GND3 Ground for an isolated part of the system. 42 VBAT Battery voltage input, usually for battery charging and management. 43 SW1 Switch node for regulator 1, used to control power flow. 44 SW2 Switch node for regulator 2, used to control power flow. 45 SW3 Switch node for regulator 3, used to control power flow. 46 SW4 Switch node for regulator 4, used to control power flow. 47 SW5 Switch node for regulator 5, used to control power flow. 48 SW6 Switch node for regulator 6, used to control power flow.20 FAQ About TPS65910A3A1RSLR:
Q1: What is the TPS65910A3A1RSLR? A1: The TPS65910A3A1RSLR is a power management IC by Texas Instruments, used for managing power supply to processors in portable systems.
Q2: How many pins does the TPS65910A3A1RSLR have? A2: The TPS65910A3A1RSLR has 48 pins in a QFN-48 package.
Q3: What is the voltage input range for the TPS65910A3A1RSLR? A3: The device operates with a voltage input range typically between 2.5V to 5.5V.
Q4: What are the output voltages provided by the TPS65910A3A1RSLR? A4: The IC provides several output voltages (VDD1, VDD2, VDD3, etc.), which can range from 1.0V to 3.3V depending on the configuration.
Q5: How do I enable the voltage regulators? A5: Voltage regulators can be enabled by applying a high signal to the corresponding EN pins (e.g., EN1, EN2).
Q6: What is the purpose of the RESET pin? A6: The RESET pin is used to indicate the power-up or reset state of the IC.
Q7: What does the PGOOD pin indicate? A7: The PGOOD pin indicates whether the output voltages are within the correct range for safe operation.
Q8: Can the TPS65910A3A1RSLR be used in battery-powered systems? A8: Yes, the TPS65910A3A1RSLR can be used in battery-powered systems, with its battery voltage input pin (VBAT).
Q9: How can I communicate with the TPS65910A3A1RSLR? A9: Communication with the device can be done via the I2C interface (pins I2CSCL and I2CSDA).
Q10: Does the TPS65910A3A1RSLR have thermal protection? A10: Yes, the TPS65910A3A1RSLR has a thermal shutdown feature that activates when the IC overheats.
Q11: What does the FAULT pin do? A11: The FAULT pin is an active-low output that indicates a fault condition such as overcurrent or overheating.
Q12: How is the output voltage regulated? A12: Output voltage is regulated through feedback pins (e.g., FB1, FB2) and external resistors to set the desired voltage.
Q13: What is the NTC pin used for? A13: The NTC pin is used for monitoring the temperature of the system to prevent overheating.
Q14: How does the device handle power sequencing? A14: The TPS65910A3A1RSLR handles power sequencing through internal logic and external enable pins to ensure proper startup and shutdown.
Q15: Can the TPS65910A3A1RSLR support multiple output rails? A15: Yes, the device supports multiple output voltage rails, allowing flexible power management for various subsystems.
Q16: How does the device handle power faults? A16: The device includes protection features, such as overvoltage, undervoltage, and thermal shutdown, to handle power faults.
Q17: Is there a way to monitor the output voltage stability? A17: Yes, the device uses feedback pins to monitor and stabilize the output voltages.
Q18: Can I adjust the output voltage of the regulators? A18: Yes, the output voltage can be adjusted by modifying external components like resistors on the feedback pins.
Q19: What is the significance of the SW pins? A19: The SW pins are used for switching the power to different rails and for controlling the flow of power to each output.
Q20: What package does the TPS65910A3A1RSLR come in? A20: The TPS65910A3A1RSLR comes in a QFN-48 package with 48 pins.
This explanation covers the most significant aspects of the TPS65910A3A1RSLR including its functionality and key FAQs. If you need further detailed explanations or another format, feel free to ask!