The TPS2051CDBVR is a part from Texas Instruments (TI), a major electronics manufacturer known for its broad range of semiconductors and analog components. This particular part is a dual-channel, low-voltage Power distribution switch designed to manage the power distribution of USB devices, making it highly relevant in USB interface applications.
Package Information:
Package Type: SOT-23-5 (5 pins) Pin Count: 5 Lead Type: Surface-mount Package Size: Small-outline transistor (SOT) package with 5 leads.Pin Function List & Descriptions (5-Pin SOT-23-5):
Here’s a detailed breakdown of each of the 5 pins for the TPS2051CDBVR:
Pin Number Pin Name Pin Type Pin Function Description 1 IN1 Input This is the input pin for channel 1, where the positive supply voltage is applied. It must be connected to the power source (typically 5V for USB applications). 2 OUT1 Output This is the output pin for channel 1, which connects to the load. It delivers power to the downstream device based on the control and protection features of the IC. 3 GND Ground This is the ground pin of the IC, to be connected to the system's ground. 4 OUT2 Output This is the output pin for channel 2, similarly to OUT1. It powers the connected downstream device, governed by the protection and control circuitry. 5 IN2 Input This is the input pin for channel 2, where the positive supply voltage is applied for the second channel.Pin Function FAQs (20 Frequently Asked Questions)
What is the function of pin IN1 in the TPS2051CDBVR? Pin IN1 is the input pin for channel 1. It receives the positive supply voltage, typically 5V, to power the first channel.
Can OUT1 be used to power multiple devices? OUT1 is designed to power one device at a time, but it can be used to distribute power to downstream devices through proper connection and load management.
How should the GND pin be connected in a circuit? The GND pin must be connected to the ground of the system to ensure proper operation and return path for the current.
What is the maximum current that OUT1 can supply? The TPS2051CDBVR is capable of supplying a maximum current of 500mA per channel, depending on thermal conditions and power dissipation.
What is the role of OUT2 in the TPS2051CDBVR? OUT2 is the output for the second channel and works in the same manner as OUT1, supplying power to a downstream device connected to it.
Can both OUT1 and OUT2 be used simultaneously? Yes, OUT1 and OUT2 can be used simultaneously to supply power to two different devices, as long as the total current does not exceed the IC's limits.
What type of devices can be powered by the TPS2051CDBVR? It is ideal for powering USB devices or any low-voltage devices that require up to 500mA of current per channel.
Can the TPS2051CDBVR be used in automotive applications? Yes, the TPS2051CDBVR can be used in automotive applications, but careful attention must be paid to the supply voltage and thermal dissipation conditions.
Is the TPS2051CDBVR thermally protected? Yes, the TPS2051CDBVR features thermal shutdown protection to prevent damage due to overheating.
What happens if there is a short circuit on the output pins? In the event of a short circuit, the TPS2051CDBVR will turn off the affected channel and attempt to recover once the short is cleared.
How do I calculate the total power dissipation of the TPS2051CDBVR? Power dissipation is calculated using the formula: ( P = I{OUT} \times V{DROP} ), where ( I{OUT} ) is the output current, and ( V{DROP} ) is the voltage drop across the device.
Is there any overload protection in the TPS2051CDBVR? Yes, the device includes current limiting and thermal shutdown protection to prevent damage due to overload conditions.
Can the TPS2051CDBVR be used in low-power battery-operated circuits? Yes, the TPS2051CDBVR is low-power, with a low quiescent current, making it suitable for battery-operated applications.
What is the supply voltage range for the TPS2051CDBVR? The device operates with a supply voltage range from 2.5V to 6V, which is typical for USB applications.
How do I know if the TPS2051CDBVR is functioning correctly? Proper functioning can be verified by checking the output voltage and current to ensure they match the expected values for the connected load.
Can the TPS2051CDBVR be used with a USB hub? Yes, it can be used in USB hub applications where power distribution to multiple devices is needed.
What type of applications benefit the most from using the TPS2051CDBVR? It is ideal for USB power distribution, portable electronics, and devices that require controlled power switching and protection.
Can the TPS2051CDBVR be damaged by reverse voltage? Yes, applying reverse voltage can damage the device. It is important to ensure proper voltage polarity before connection.
What is the recommended PCB layout for the TPS2051CDBVR? Proper PCB layout recommendations include keeping the ground traces as short and wide as possible to reduce parasitic inductance and resistance.
What is the maximum ambient temperature for the TPS2051CDBVR? The device can operate in temperatures ranging from -40°C to 125°C, ensuring reliable performance in most environmental conditions.
This covers the detailed pin function specifications, packaging, and FAQs related to the TPS2051CDBVR from Texas Instruments. Let me know if you'd like additional details or further clarifications!
