Overview
The TPS60401DBVR is a charge pump voltage inverter integrated circuit (IC) manufactured by Texas Instruments. It is designed to generate a negative voltage from a positive input supply, making it ideal for applications where a negative bias voltage is required. The device operates with an input voltage range of 1.6V to 5.5V and can deliver up to 60mA of output current. This IC is commonly used in portable electronics, such as smartphones and tablets, as well as in LCD displays and other low-power systems. Its compact SOT-23-5 package makes it suitable for space-constrained designs. The TPS60401DBVR is known for its high efficiency and low power consumption, which are critical for battery-operated devices.
Structure and Working Principle
The TPS60401DBVR operates as a charge pump inverter, using switched capacitors to convert a positive input voltage to a negative output voltage. It does not require inductors, which simplifies the design and reduces the overall footprint. The IC internally switches capacitors between charging and discharging phases to achieve voltage inversion. The device includes an oscillator, a charge pump, and control logic to regulate the output voltage. It features a fixed conversion ratio of -1, meaning the output voltage is approximately the negative of the input voltage. The TPS60401DBVR also includes built-in protection against overcurrent and thermal shutdown to ensure reliable operation.
Key Features
The TPS60401DBVR offers several key features that make it a popular choice for voltage inversion applications. It has a wide input voltage range of 1.6V to 5.5V, making it compatible with various power sources, including single-cell batteries. The device delivers up to 60mA of output current, sufficient for many low-power applications. Another notable feature is its high efficiency, which minimizes power loss and extends battery life in portable devices. The TPS60401DBVR also has a low quiescent current, typically around 65µA, further enhancing its energy efficiency. Its compact SOT-23-5 package is ideal for space-constrained designs, and the device requires minimal external components for operation.
Application Areas
The TPS60401DBVR is widely used in applications requiring a negative voltage supply. One common use is in portable electronics, such as smartphones, tablets, and wearable devices, where it provides bias voltages for LCD displays or audio amplifiers. It is also used in medical devices, such as portable monitors, where reliable and efficient power conversion is critical. Other applications include industrial equipment, such as sensors and data acquisition systems, and consumer electronics, such as digital cameras and portable media players. The TPS60401DBVR's ability to operate over a wide input voltage range and its compact size make it a versatile solution for many low-power systems.
Maintenance and Precautions
To ensure reliable operation of the TPS60401DBVR, it is important to follow certain precautions. Avoid exceeding the maximum input voltage of 5.5V or the output current limit of 60mA, as this can damage the device. Proper thermal management is also essential, especially in high-temperature environments, to prevent overheating and thermal shutdown. When designing the PCB layout, place the input and output capacitors as close as possible to the IC to minimize parasitic inductance and ensure stable operation. Additionally, avoid exposing the device to excessive mechanical stress or moisture, as this can affect its performance and longevity.
B2B Procurement Guide
When procuring the TPS60401DBVR in bulk for B2B applications, consider factors such as price, lead time, and supplier reliability. The reference price range is approximately $0.50 to $1.20 per unit, depending on the order quantity and supplier. It is advisable to request samples and conduct quality tests before placing large orders. Work with authorized distributors or direct suppliers to ensure genuine Texas Instruments products. Check for certifications and compliance with industry standards, such as RoHS and REACH. Additionally, consider the supplier's inventory levels and ability to meet delivery deadlines to avoid production delays.
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