TN8D51A-HB11-E Integrated Circuits (ICs)

PMIC - Voltage Regulators - DC DC Switching Regulators

The TN8D51A-HB11-E is a DC-DC switching regulator circuit which feature a high-speed converter, ultra-low supply current, and compact form-factor. It is suitable for use in applications that require quick response time with low noise output, such as voltage stabilization and noise filtering. This circuit works by using a buck-boost regulator principle, adjusted to different output voltages via analog or digital signals.

Feature Overview

The TN8D51A-HB11-E offers a wide range of features to meet application requirements. It has a high switching frequency of up to 1.2 MHz, which helps to reduce the power consumption and size of the regulator. It also offers a high channel capacity with a single channel capable of delivering up to 25 A, and multiple channels up to 50 A. The device can be used with an input voltage of up to 25 V, and outputs up to 25 V. It also features an input/output regulation capability, which enables the load regulation to be adjusted.

The TN8D51A-HB11-E also offers built-in safety protection features. It integrates protection against short circuit, over-voltage and under-voltage, as well as over-temperature and over-current. A large number of protection cycles are available, providing an extra level of security for the circuit. It is also designed to be “in-circuit” programmable, eliminating the need for external programming.

Application Fields

The TN8D51A-HB11-E is suitable for applications requiring fast response time and low noise output. It can be used for power supply design for digital and analog circuits, such as battery-powered devices, solar power systems, charging systems, automotive and industrial equipment, and CCTV systems. It can also be used in audio systems, voltage stabilization and noise filtering applications, as well as low-power communication systems.

Working Principle

The TN8D51A-HB11-E uses a buck-boost switching regulator principle. This type of regulator works by utilizing two DC sources, one as the input source and one as the output source. The regulator then steps up or down the voltage between the two sources, depending on the load current requirements. It achieves this by switching the flow of current between the two sources, using a PWM signal to control the switching action. This allows for precise control, enabling the output voltage to be adjusted to different target voltages.

The TN8D51A-HB11-E also offers load regulation capabilities. This means that the output voltage can be adjusted depending on the load requirement, allowing for implementation of dynamic voltage scaling. This ensures that the voltage remains stable and that the load requirements are always met. The regulator also implements an insufficient power protection, ensuring that the circuit remains safe even during under-voltage supply conditions.

Conclusion

The TN8D51A-HB11-E is a DC-DC switching regulator which is ideal for applications that require fast response time and low power consumption. Its wide range of features make it suitable for a variety of applications, from audio and security systems to industrial and automotive applications. Its buck-boost switching architecture and load regulation functionality ensure precise control and regulation, enabling the device to deliver stable output voltage despite varying load conditions.