SIP2802DY-T1-E3

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SIP2802DY-T1-E3 is an integrated offline switcher delivering up to 1W of output power with very low power losses and high efficiency. The device include a wide range of protection and safety features, such as internal and external current limit, thermal shutdown and voltage soft start, making the use of DC/DC based isolated power supply suitable for many applications.It is designed with a single inductor flyback architecture, allowing the isolation of the output voltage from the input voltage, making it a suitable device for low power isolated power supplies.

Application Field of SIP2802DY-T1-E3

The SIP2802DY-T1-E3 is designed to be used in a variety of applications, including, but not limited to, mobile phones, tablets, laptop and LED applications. The devices are specially designed for applications which require very low leakage current and very high efficiency.The device is also suitable for use in battery conversion, charging and standby power applications, and can be used to power other sensitive electronics such as low noise audio amplifiers .

Working principle of SIP2802DY-T1-E3

SIP2802DY-T1-E3 uses a single inductor flyback converter topology, which can be used to generate an isolated output voltage from a non-isolated input voltage. The single inductor flyback converter is divided into two parts. The first part is the primary side, which consists of an input rectifier, a primary switch, an auxiliary winding flyback inductor, an auxiliary diode and an output capacitor. The second part is the secondary side, which consists of an output rectifier, an auxiliary winding flyback inductor, an output diode, an output capacitor and an output switch.The basic principle of the single inductor flyback converter is the same as any other converter. During the flyback period, the energy stored in the flyback inductor is transferred to the output capacitor. During the on period, the primary switch is turned on, which allows current to flow from the input voltage to the flyback inductor.When the switch is turned off, the auxiliary diode is forward biased, which allows the energy stored in the flyback inductor to be transferred to the output capacitor. The output diode is used to prevent the energy stored in the output capacitor from flowing back to the input voltage.

The SIP2802DY-T1-E3 provides a range of features to make the converter suitable for a variety of applications. These features include an adjustable power good delay, a soft start voltage control, a programmable current limit and an adjustable output voltage.

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