TOP203YAI

Duty Cycle:	67%
Mounting Type:	Through Hole
Supplier Device Package:	TO-220-3
Package / Case:	TO-220-3
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	--
Fault Protection:	Current Limiting, Over Temperature
Power (Watts):	100W
Frequency - Switching:	100kHz
Series:	TOPSwitch®
Voltage - Supply (Vcc/Vdd):	--
Topology:	Boost, Buck, Flyback, Forward
Voltage - Breakdown:	700V
Internal Switch(s):	Yes
Output Isolation:	Either
Part Status:	Obsolete
Packaging:	Tube

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Introduction to TOP203YAI PMIC

TOP203YAI, a PMIC (Power Management IC) from TOPSwitch family, stands for an AC-DC converter, an offline switcher and several other useful ICs. TOP203YAI is mainly used in various applications requiring power quality improvement and efficiency of the power supply system. A major benefit of using TOP203YAI is its wide input voltage range, low output noise and high efficiency.

TOP203YAI Application Fields

TOP203YAI mainly serves two main application fields, that is, AC-DC converters and offline switchers. Due to its wide input voltage range, low output noise and high efficiency, TOP203YAI has proven itself to be exceptionally well suited for use in AC-DC converters. Since it features low standby power consumption and provides an excellent protection against power transients, it is also well-suited for use in offline switchers.

TOP203YAI Working Principle

The working principle of TOP203YAI is based on the use of its input rectification and output regulation circuitry. The rectification circuit is responsible for converting the AC source into a DC source. It does this by taking the input AC voltage and converting it into a DC voltage. The output regulation circuitry then takes the DC voltage and regulates it to the desired output voltage.This process is known as pulse-width modulation (PWM). In the rush-current mode, it is done by adjusting the duty cycle of the PWM signal to regulate the output power. In the burst-mode operation, it is done by adjusting the frequency of the PWM signal to regulate the output power.

Features of TOP203YAI

TOP203YAI has several features which make it suitable to both AC-DC converters and offline switchers. It features high-efficiency operation up to 90%, along with low standby power consumption and excellent protection against power transients. Additionally, it incorporates a fault-protection circuitry, allowing correct detection and response of the power supply in case of an overload. Lastly, it also integrates a full range of other useful features, such as line regulation, overvoltage protection and soft-start capability.

Conclusion

TOP203YAI is an excellent choice for use in AC-DC converters and offline switchers. It has high efficiency, low standby power consumption, excellent protection against power transients, fault-protection circuitry, line regulation, overvoltage protection, and soft-start capability. These features make it the ideal choice for powering sensitive electronic devices and systems.

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