MAX5068AAUE+T

Voltage - Supply (Vcc/Vdd):	10.8 V ~ 24 V
Base Part Number:	MAX5068
Supplier Device Package:	16-TSSOP-EP
Package / Case:	16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	EN, Frequency Control, Sync
Fault Protection:	Current Limiting, Over Temperature
Frequency - Switching:	25kHz ~ 1.25MHz
Duty Cycle:	50%
Series:	--
Voltage - Start Up:	23.6V
Topology:	Flyback, Forward
Voltage - Breakdown:	--
Internal Switch(s):	No
Output Isolation:	Either
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

MAX5068AAUE+T is an advanced power supply module used in many different applications. It is a buck converter designed for AC/DC (alternating current/direct current) power conversion and is capable of working efficiently in a wide range of input voltages and frequencies. It is available in an 8-pin TSSOP (Thin Shrink Small Outline Package) package and can be mounted along a variety of connector types. MAX5068AAUE+T has an integrated EPC (Electrically Programmable Capacitor) module which allows the user to program it to meet the desired input requirements.

Applications

MAX5068AAUE+T finds applications in a variety of AC/DC power supplies. It is particularly suitable for offline switch-mode power supplies (SMPS) operating over a wide input voltage range, such as 12 VDC to 50 VDC. It can be used for both single and three-phase applications. Its features make it an excellent choice for applications like communication systems, industrial control systems, computer servers, battery chargers and motor drives, etc. It can handle high peak and constant currents up to 25 A. Its high efficiency, low cost, and small form factor make it a popular choice for many applications.

Working Principle

The MAX5068AAUE+T is a buck converter which uses an integrated EPC (Electrically Programmable Capacitor) module. It operates in a switching mode that works on the basic principle of voltage and current conversion. The operating frequency of the converter is typically in the range of 50 kHz to 500 kHz and is adjustable with the help of the integrated EPC.At the input, the AC voltage is rectified by the diode bridge and filtered by the EMI filter, forming a DC voltage. The internal switching MOSFETs (metal-oxide-semiconductor field-effect transistors) then alternately switch between +V and -V, producing an AC voltage at the output. The switching frequency, current and voltage are controlled by the microcontroller.The output voltage is both monitored and regulated by the feedback loop in the microcontroller and the EPC. The EPC is used to program and adjust the output voltage and current settings. The MOSFETs are also protected by the thermal shut-off circuitry which turns off the MOSFETs if the temperature rises above the predetermined threshold.

Conclusion

MAX5068AAUE+T is an advanced AC/DC buck converter designed for offline switch-mode power supplies operating over a wide input voltage range. It has an integrated EPC (Electrically Programmable Capacitor) module for easy voltage and current adjustment. Its features make it suitable for applications like communication systems, industrial control systems, computer servers, battery chargers, and motor drives. It can handle high peak and constant currents up to 25 A and provides high efficiency, low cost and small form factor to its users.

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