TPS61021ADSGR Detailed explanation of pin function specifications and circuit principle instructions
The model "TPS61021ADSGR" is a part of Texas Instruments (TI). The "TPS61021ADSGR" is a boost converter designed to efficiently step-up voltage from a low voltage input to a higher voltage output, commonly used for Power ing small devices in applications like battery-powered systems.
Regarding the package, the "TPS61021ADSGR" comes in a TSSOP-20 (Thin Shrink Small Outline Package with 20 pins).
I'll create a detailed table of pin functions with specifications for all 20 pins and provide a comprehensive FAQ section as requested.
Pin Function Table for TPS61021ADSGR (TSSOP-20 Package)
Pin Number Pin Name Pin Function Description 1 IN+ Input positive voltage pin for the boost converter. This is the main supply voltage input. 2 IN- Input negative voltage pin for the boost converter. Ground reference for the input. 3 SW1 Switch node for the external inductor. This pin connects to the inductor for current flow. 4 SW2 Alternate switch node for the external inductor. Provides additional current handling. 5 FB Feedback pin that monitors output voltage. Used for regulating the output voltage. 6 COMP Compensation pin for the error amplifier. Controls loop stability by setting the frequency response. 7 VOUT Output voltage pin. This is the positive output from the boost converter. 8 GND Ground pin. Used as the reference ground for the entire system. 9 ENABLE Enable pin for controlling the operation of the converter. Setting this pin high enables the device. 10 VCAP capacitor connection for controlling internal voltage regulation. Often used to stabilize internal circuit voltages. 11 AGND Analog ground. It isolates sensitive analog signals from the power ground to reduce noise. 12 PGND Power ground. Connects to the power return of the system. 13 SS Soft-start pin. Used to limit inrush current during power-up. 14 VDD Power supply pin. This provides the internal reference voltage for the IC. 15 VSS Reference ground for the internal logic. 16 BOOST Boost capacitor pin. This pin connects to the boost capacitor to improve efficiency. 17 OUT1 Additional output for specific configurations of the boost converter (optional). 18 OUT2 Optional additional output for different voltage configurations. 19 GND Common ground for the circuit, connected to the chassis or system ground. 20 SYNC Synchronization pin for clock-based devices. Used for phase-synchronizing with other components in complex systems.TPS61021ADSGR Pin Function FAQ
What is the function of pin 1 (IN+) on the TPS61021ADSGR? Pin 1 (IN+) is the positive voltage input for the boost converter. It supplies the input voltage that is stepped up to the desired output level. What is the function of pin 2 (IN-) on the TPS61021ADSGR? Pin 2 (IN-) is the negative input or ground pin. It serves as the reference ground for the input power supply. What is the role of pin 3 (SW1) on the TPS61021ADSGR? Pin 3 (SW1) connects to the external inductor and is the main switching node for current flow during the operation of the boost converter. What is the purpose of pin 4 (SW2) on the TPS61021ADSGR? Pin 4 (SW2) is another switching node used for the external inductor, providing additional current handling capabilities. What is the feedback function of pin 5 (FB) on the TPS61021ADSGR? Pin 5 (FB) is used for feedback. It monitors the output voltage and ensures the system regulates the output to the desired level. What is the COMP pin (pin 6) used for? Pin 6 (COMP) is the compensation pin for the error amplifier. It helps to stabilize the feedback loop and set the frequency response. What is the VOUT pin (pin 7) used for in the TPS61021ADSGR? Pin 7 (VOUT) is the output voltage pin. It provides the boosted voltage that is used to power external devices. What does the GND pin (pin 8) on the TPS61021ADSGR do? Pin 8 (GND) is the ground pin that serves as the reference for the entire system. What does pin 9 (ENABLE) do on the TPS61021ADSGR? Pin 9 (ENABLE) is used to turn the boost converter on or off. A high logic level enables the device.What is the purpose of pin 10 (VCAP) in the TPS61021ADSGR?
Pin 10 (VCAP) connects to a capacitor that helps regulate internal voltages for the proper functioning of the circuit.What is the function of pin 11 (AGND) on the TPS61021ADSGR?
Pin 11 (AGND) is the analog ground pin, which isolates analog signals from noisy power grounds to maintain signal integrity.What does the PGND pin (pin 12) serve in the TPS61021ADSGR?
Pin 12 (PGND) is the power ground, connecting to the power return path for the system.What is the SS pin (pin 13) used for?
Pin 13 (SS) is the soft-start pin. It limits the inrush current when the device is powered on to prevent damage to the system.What does the VDD pin (pin 14) provide in the TPS61021ADSGR?
Pin 14 (VDD) provides the internal reference voltage required for the operation of the device.What does the VSS pin (pin 15) do in the TPS61021ADSGR?
Pin 15 (VSS) is the reference ground for the internal logic within the device.What is the role of pin 16 (BOOST) in the TPS61021ADSGR?
Pin 16 (BOOST) connects to a capacitor that helps improve the efficiency of the boost converter by regulating the voltage levels.How are pins 17 (OUT1) and 18 (OUT2) used in the TPS61021ADSGR?
Pins 17 and 18 provide additional output voltage levels for special configurations. These pins can be used to output different voltage levels depending on the specific system design.What does the GND pin (pin 19) do in the TPS61021ADSGR?
Pin 19 is another ground pin, providing a reference ground for the system.What is the function of the SYNC pin (pin 20)?
Pin 20 (SYNC) is used for synchronizing the clock signals of the TPS61021ADSGR with other devices in a complex system to maintain phase alignment.How should I configure the Enable pin (pin 9) to power on the TPS61021ADSGR?
To power on the TPS61021ADSGR, the Enable pin should be driven high, which allows the boost converter to operate and provide output voltage.Let me know if you'd like further details!
