The model "TPS61023DRLR" belongs to Texas Instruments (TI), a leading manufacturer of semiconductors and electronics. This specific model is a DC-DC Boost Converter designed for Power management applications. Below is a detailed explanation of the pin functions, the package type, and the circuit principles, as well as FAQs based on your request.
Package Type:
The TPS61023DRLR comes in a VSSOP-8 package (Very Small Shrink Outline Package), which is an 8-pin surface mount package.
Pinout and Function Specification:
The following is a detailed pinout and description for the TPS61023DRLR:
Pin Number Pin Name Pin Function Description 1 SW Switch pin. This is the main switching node connected to an external inductor to build the boost converter circuit. The SW pin is used to control the inductor's energy storage. 2 GND Ground. This pin is connected to the circuit's ground and serves as a reference for all the other voltages. 3 FB Feedback pin. It senses the output voltage and provides feedback to the internal regulator to control the boost converter's output. Typically used for setting the output voltage through an external resistor divider. 4 EN Enable pin. This pin is used to enable or disable the boost converter operation. A logic high level (typically above 1.5V) enables the device, while a logic low level disables it. 5 VOUT Output voltage. This pin provides the output voltage from the boost converter. It is the pin where the regulated voltage is supplied to the load. 6 NC No connection. This pin is not internally connected and does not play any role in the functionality of the device. It is typically used for package bonding or spacing purposes. 7 VIN Input voltage. This pin is used to supply the input voltage to the boost converter, typically 0.8V to 6V. 8 PG Power Good pin. This is an open-drain output that signals when the output voltage is within an acceptable range. It is typically connected to a pull-up resistor and is used to indicate that the boost converter has successfully regulated the output.Circuit Principle of TPS61023:
The TPS61023 is a boost converter IC, meaning it takes a lower input voltage and steps it up to a higher output voltage. Here’s how the circuit operates:
Inductor Charging: When the MOSFET inside the IC is turned on, current flows from the input through the inductor, storing energy in the magnetic field of the inductor. Inductor Discharging: When the MOSFET is turned off, the inductor releases its stored energy, causing the voltage to increase. Feedback Control: The feedback pin (FB) is used to monitor the output voltage. When the output voltage reaches the set point, the feedback loop adjusts the switching duty cycle to maintain regulation. Switching Frequency: The switching frequency of the IC is typically in the range of 1 MHz, allowing for smaller external components like the inductor and capacitor s.FAQ - 20 Common Questions and Answers
Q: What is the TPS61023DRLR used for? A: The TPS61023DRLR is a boost converter used to step up lower input voltages to a higher output voltage for various power supply applications.
Q: What is the input voltage range for the TPS61023DRLR? A: The input voltage range for the TPS61023DRLR is between 0.8V to 6V.
Q: What is the output voltage range of the TPS61023DRLR? A: The TPS61023DRLR provides an output voltage that can be adjusted using external resistors in the feedback network, typically ranging from 1.8V to 5.5V.
Q: What is the maximum output current of the TPS61023DRLR? A: The TPS61023DRLR can provide a maximum output current of up to 600mA, depending on the input voltage and output voltage settings.
Q: What package type is the TPS61023DRLR in? A: The TPS61023DRLR is in a VSSOP-8 (Very Small Shrink Outline Package) with 8 pins.
Q: Can the TPS61023DRLR be used for a 5V output application? A: Yes, the TPS61023DRLR can be configured to provide a 5V output by adjusting the external feedback resistors.
Q: How do I calculate the output voltage of the TPS61023DRLR? A: The output voltage is determined by the resistor divider connected to the feedback pin. The voltage can be calculated using the formula: [ V{OUT} = V{REF} \times (1 + \frac{R2}{R1}) ] where ( V_{REF} ) is the internal reference voltage (typically 0.6V).
Q: How do I enable or disable the TPS61023DRLR? A: The TPS61023DRLR is enabled by applying a logic high voltage (typically 1.5V or higher) to the EN (Enable) pin. A logic low disables the device.
Q: Is there a way to monitor if the TPS61023DRLR is functioning properly? A: Yes, the TPS61023DRLR has a Power Good (PG) pin that can be monitored to check if the output voltage is within the desired range.
Q: What is the frequency of operation for the TPS61023DRLR? A: The switching frequency for the TPS61023DRLR is typically around 1 MHz.
Q: What is the function of the SW pin in the TPS61023DRLR? A: The SW pin is the switch pin that connects to an external inductor and controls the energy storage and transfer process in the boost converter.
Q: How do I select the inductor for the TPS61023DRLR? A: The inductor value should be chosen based on the desired output voltage and current requirements. A typical value is between 4.7µH and 10µH.
Q: How should the output capacitor be selected for the TPS61023DRLR? A: A low ESR ceramic capacitor with a typical value of 10µF to 22µF is recommended for stable output voltage.
Q: Can I use the TPS61023DRLR to step down voltages? A: No, the TPS61023DRLR is a boost converter, meaning it can only step up the input voltage to a higher output voltage.
Q: What is the operating temperature range for the TPS61023DRLR? A: The operating temperature range is -40°C to +85°C.
Q: Can the TPS61023DRLR be used in battery-powered applications? A: Yes, the TPS61023DRLR is ideal for battery-powered applications, as it can step up low voltages from a battery to a higher, regulated output.
Q: How do I protect the TPS61023DRLR from overcurrent conditions? A: The TPS61023DRLR has internal overcurrent protection, but external components such as a fuse or current-limiting resistor may be used for added protection.
Q: Can the TPS61023DRLR be used with an external clock? A: No, the TPS61023DRLR does not support an external clock input; it operates with an internal fixed frequency of about 1 MHz.
Q: Is thermal shutdown protection provided in the TPS61023DRLR? A: Yes, the TPS61023DRLR includes thermal shutdown protection to prevent damage due to excessive temperatures.
Q: How do I calculate the efficiency of the TPS61023DRLR? A: The efficiency can be estimated by considering the input and output voltage, current, and the typical losses in the inductors, MOSFETs , and diodes, with an efficiency range typically between 85% to 95%.
If you need any further clarification or additional information, feel free to ask!