The part number "TPS61041DBVR" is a product from Texas Instruments. It is a boost converter integrated circuit (IC) commonly used for powering various electronic systems, especially in low-voltage applications.
Package Type:
The TPS61041DBVR comes in a SOT-23-6 package, which has 6 pins in total.
Pin Function Descriptions (6 pins):
Below is a detai LED description of the 6 pins for the TPS61041DBVR:
Pin No. Pin Name Function Description 1 VIN Input Voltage: This is the input pin where the DC voltage is applied (typically between 0.8V and 3.6V). 2 SW Switch Pin: Connects to an external inductor. It switches between high and low states, helping to convert input voltage. 3 GND Ground Pin: The reference ground for the circuit. This is connected to the negative side of the power supply. 4 EN Enable Pin: This pin is used to enable or disable the boost converter. When high (typically 1.8V or more), the IC is enabled. 5 FB Feedback Pin: This pin is used for voltage regulation. A resistor divider is connected to this pin to set the output voltage. 6 VOUT Output Voltage: This pin provides the boosted output voltage from the circuit. Typically, this is in the range of 3.3V to 5V.Circuit Principle:
The TPS61041 operates as a boost converter. It steps up a lower input voltage to a higher output voltage using inductive energy storage and switching.
Inductor Charging: The SW pin switches between high and low states, creating a magnetic field in the external inductor. Energy Transfer: During the "on" phase, the inductor stores energy, and during the "off" phase, the energy is transferred to the output. Feedback Regulation: The feedback pin ensures that the output voltage is maintained at a steady level by adjusting the switching duty cycle based on the feedback signal.Frequently Asked Questions (FAQ):
Q: What is the input voltage range for the TPS61041DBVR? A: The input voltage range is typically between 0.8V and 3.6V, which makes it suitable for low-voltage battery-powered applications.
Q: How does the feedback pin work in the TPS61041DBVR? A: The feedback pin (FB) is used to monitor the output voltage. It adjusts the switching duty cycle of the IC to maintain the output voltage at the desired level.
Q: Can the TPS61041DBVR be used for charging a battery? A: No, the TPS61041DBVR is a boost converter used for stepping up voltage but is not specifically designed for battery charging.
Q: What is the maximum output voltage of the TPS61041DBVR? A: The maximum output voltage typically ranges between 3.3V to 5V, depending on the resistor configuration connected to the feedback pin.
Q: What is the function of the EN (Enable) pin? A: The EN pin is used to enable or disable the boost converter. When the pin is pulled high, the IC is active; when pulled low, the IC is turned off.
Q: Can I connect the SW pin to an external load directly? A: No, the SW pin should be connected to an external inductor and not to a load. The load should be connected to the VOUT pin.
Q: What type of inductor should be used with the TPS61041DBVR? A: A typical inductor for the TPS61041DBVR would have a value around 10 µH, with a current rating that can handle the desired output current.
Q: Can the TPS61041DBVR be used for powering an LED? A: Yes, the TPS61041DBVR can be used to step up the voltage to a level suitable for powering an LED, as long as the output voltage and current meet the LED's requirements.
Q: Is the TPS61041DBVR thermally protected? A: Yes, the TPS61041DBVR has internal thermal protection that prevents overheating and damage under excessive temperature conditions.
Q: What is the quiescent current of the TPS61041DBVR? A: The quiescent current is typically very low (around 50 µA), making it ideal for battery-powered applications where energy efficiency is crucial.
Q: What is the efficiency of the TPS61041DBVR? A: The efficiency of the TPS61041DBVR typically ranges from 85% to 90%, depending on the input voltage and load conditions.
Q: Can the TPS61041DBVR be used for powering microcontrollers? A: Yes, it can step up a low input voltage to a level suitable for powering microcontrollers, typically in the range of 3.3V to 5V.
Q: How should the GND pin be connected in the circuit? A: The GND pin should be connected directly to the ground of the power supply to ensure proper operation and voltage reference.
Q: What is the typical switching frequency of the TPS61041DBVR? A: The switching frequency of the TPS61041DBVR is typically around 1 MHz, ensuring efficient operation in compact designs.
Q: What is the output current capability of the TPS61041DBVR? A: The TPS61041DBVR can supply a maximum output current of 600 mA, depending on the input voltage and output voltage requirements.
Q: Can the TPS61041DBVR operate with a solar panel? A: Yes, it can operate with a solar panel as long as the input voltage from the panel is within the specified range of the IC.
Q: What is the recommended output capacitor for the TPS61041DBVR? A: The recommended output capacitor is typically around 10 µF to 22 µF to ensure stable operation and smooth output voltage.
Q: How do I calculate the output voltage of the TPS61041DBVR? A: The output voltage can be calculated based on the feedback resistor divider ratio. The formula is: [ V{OUT} = V{FB} \times (1 + \frac{R2}{R1}) ]
Q: What is the role of the input capacitor in the TPS61041DBVR? A: The input capacitor filters the input voltage to reduce noise and provides stability during the switching transitions of the IC.
Q: How do I determine the appropriate enable signal for the EN pin? A: The EN pin should be driven high (typically 1.8V or higher) to enable the IC. To disable it, pull the EN pin low (typically 0V).
