ABP2820GMM-G1

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Power management integrated circuits (PMICs) are critical components for any electronic device, specifically for controlling the power distribution and action of various components in the device, such as the switching, regulation, and sensing of various electrical signals. One of these PMICs is the ABP2820GMM-G1, which is designed mainly for mobile devices, but also finds use in various consumer electronics, medical, automotive, and industrial applications. This article will take a look at the application field and working principle of the ABP2820GMM-G1 and their role in power management integrated circuits.

Application Field of ABP2820GMM-G1

The ABP2820GMM-G1 is part of the PMIC-Power Distribution Switch, Load Driver family. Specifically, the ABP2820GMM-G1 is a programmable Multi-Channel High-Side Low-Side MOSFET Driver. It is designed to drive a variety of MOSFETs and IGBTs in so-called “half-bridge” topologies used in motor drives and class-D audio amplifiers.The ABP2820GMM-G1 provides three separate control channels, each able to handle up to 8A of peak load current. It can be configured for single-pulse, double-pulse and half-bridge topologies, and can also be used in conjunction with external MOSFETs and gate drivers for higher load currents. Additionally, the ABP2820GMM-G1 features a 10-bit voltage feedback system, making it well-suited for application to current-regulated motor drives and other load control applications.

Working Principle of the ABP2820GMM-G1

The ABP2820GMM-G1 utilizes an advanced current-mode, PWM-only, driving scheme. This driving scheme employs two main components: a power stage and a control stage.The power stage consists of a high-side switching MOSFET and a low-side switching MOSFET connected in a half-bridge topology. The control stage utilizes the pulse-width modulation (PWM) signal to turn on the high-side switch, allowing the current to flow through the load, while simultaneously turning off the low-side switch. The high-side and low-side switches are then turned off in the reverse order.The pulse-width modulation signal is generated by an external microcontroller, and is fed into the ABP2820GMM-G1. This signal is then used to control the current flow through the load. The ABP2820GMM-G1 is able to sense the current flow through the load using an internal sense resistor and generate an accurate voltage feedback signal that is used to adjust the PWM duty cycle, enabling it to accurately regulate the current throughout the load.

Conclusion

The ABP2820GMM-G1 is an advanced power switch and load driver designed to drive high-side and low-side MOSFETs in a half-bridge topology. It is able to accurately maintain current regulation through the load with the help of its 10-bit voltage feedback system and its current-mode, PWM-only driving scheme. The ABP2820GMM-G1 is well-suited for use in motor drives and current-controlled load applications. Its primary application is in mobile devices, but it can also find use in a variety of consumer electronics, medical, automotive, and industrial applications.

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