MIC2184YM-TR

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MIC2184YM-TR is a type of DC-DC switching controller device that is designed to be part of Power Management Interface Circuits (PMICs). It provides efficient power delivery to high power-end applications such as cameras, wearables, or heath-care systems. The main purpose of using this device is to regulate the output voltage of a given system and maintain the level of load current.

Features

• 100 mV maximum on-time regulation accuracy
• 2.2 µs to 7 µs fault detect and latch timing
• 1.4 A minimum sink capability for open loop and cycle-by-cycle current limiting applications
• 100 mV to 400 mV input range
• 400 mV to 600 mV maximum output range
• Features protection against undervoltage conditions
• No minimum on time requirements
• Operational up to 45 V
• Maximum switching frequency of 2 MHz
• 7 µA quiescent current
• Up to 1.5 MHz operational frequency

Application Field

MIC2184YM-TR DC-DC switching controllers, when used in the car power system, can provide the system with solutions to reduce power dissipation, improve circuit efficiency, and reduce system cost. The controller can be used in a wide range of applications power solutions such as automotive, industrial and consumer products, home-appliance, wireless device, and computing. Additionally, this device can be used in battery backed-up systems, automotive infotainment systems, door motor, and dynamic driver cooling systems. It can also be used in industrial control systems, power management of wearable devices, and automotive ECU/ECG resolution.

Working Principle

The working principle of MIC2184YM-TR DC-DC switching controller is to regulate the output voltage of the power system, to power the system with the desired current, and to maintain the load current. The device integrates a low resistance high-current FET driver and a fast keeping-on-delay and is incorporated with advanced fault control Monitor protection. The device contains two operating modes, for either open loop or pulse width modulation (PWM) operation. For open loop control, the controller requires no minimum on-time, so the system efficiency can be achieved in a wide range of load condition. For PWM operation, the device drives an external FET with an adjustable frequency up to 1.5MHz and is designed with fast on-times to reduce ringing and consequent noise on the switching node. Moreover, the device protection features inhibit pulse-by-pulse overcurrent protection, undervoltage lockouts, and output overvoltage protection.

Conclusion

In conclusion, the MIC2184YM-TR DC-DC switching controller is an advanced regulator device that offers efficient power delivery to high power-end applications. It provides two operating modes for either open loop or pulse width operation. Additionally, it provides multiple protection features to ensure the system is stable and secure against undervoltage, overvoltage, and overcurrent conditions. The device is widely used in automotive, industrial, and consumer applications for power management and for the resolution of automotive ECU/ECG systems.

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