BH6054GU-E2

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PMIC (power management integrated circuits) have become an important device in order to optimize power consumption and quality of design in many applications. The BH6054GU-E2 is one of the PMIC devices available in the market, specifically tailored for embedded systems. This article will focus on describing the application field and working principle of the BH6054GU-E2.

Application Field

The BH6054GU-E2 is a low-power PMIC that can provide power to embedded applications such as portable systems and a variety of industrial and consumer applications. This PMIC is crafted to meet the extreme power requirements of increasingly compact portable electronics. It offers over-voltage protection, over-temperature protection, and is compliant with current isolation features. Additionally, it provides short-circuit protection, power-on reset, and low noise generation.

The BH6054GU-E2 integrates all necessary PC power supply circuits onto a single chip, reducing the need to use bulky, expensive components. It offers a wide voltage range of 2.8V to 5.5V, with a hysteresis range down to 0.8V. The PMIC’s adjustable synchronous buck converter can deliver up to 5A of current in a single output configuration, or up to 3.5A in a multiple-output configuration. The PMIC also offers numerous DC-DC power stages, including boost, buck-boost, positive-to-negative converter, Buck-Boost converter and a low-dropout linear regulator.

This PMIC also supports low power modes, allowing the device to be used in systems with a need for high efficiency at a lower power level. It also provides an adjustable power-on time, allowing for robust start-up sequence for the complete system. It requires very minimal external components and is highly reliable, with an operating temperature range of -25°C to +85°C.

Working Principle

The BH6054GU-E2 integrates various power supply stages and features on a single chip to provide power to embedded system designs. It adopts synchronous rectification with low quiescent current circuitry, ensuring very clarity of current output, high efficiency, and low noise. It has high-performance current mode control and contains built-in overcurrent protection, providing a powerful and secure protection performance.

When using the BH6054GU-E2, the control voltage is applied to and adjusted by the external voltage divider. The reference voltage is then transmitted to the non-inverting input of the error amplifier, from which the output voltage of the regulator is calculated. The output voltage is further compared to the feedback voltage, which is generated by the external voltage divider located at the voltage output node of the control pin, and then compensated by the error amplifier. This process is repeated in order to maintain a relatively constant output voltage.

The regulator current is provided by the integrated MOSFETs of the synchronous rectifier and will turn on and off in a guided manner in order to provide the necessary current for a stable output voltage. The MOSFET is then modulated by a high-speed PWM controller, which ensures a smooth transition and better efficiency. The BH6054GU-E2 has an internal soft-start circuit, ensuring a seamless start-up of the integrated regulator.

In conclusion, the BH6054GU-E2 is an integrated PMIC designed for embedded systems. Its wide voltage range, adjustable synchronous buck converter, and various DC-DC power stages make it a great choice for a variety of portable electronics and embedded applications. Its outstanding features, such as over-current protection and low noise generation, ensure that this PMIC is reliable and safe to use. This PMIC is highly efficient, providing a great solution for those who require high power yet demand low energy consumption.

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