IT4815S

Series:	IT
Packaging:	Tube
Part Status:	Active
Type:	Isolated Module
Number of Outputs:	2
Voltage - Input (Min):	18V
Voltage - Input (Max):	75V
Voltage - Output 1:	15V
Voltage - Output 2:	-15V
Voltage - Output 3:	--
Current - Output (Max):	100mA
Power (Watts):	3W
Voltage - Isolation:	1.5kV
Applications:	ITE (Commercial)
Features:	Remote On/Off, SCP
Operating Temperature:	-40°C ~ 100°C
Efficiency:	83%
Mounting Type:	Through Hole
Package / Case:	9-SIP Module, 7 Leads
Size / Dimension:	1.02" L x 0.36" W x 0.49" H (26.0mm x 9.2mm x 12.5mm)
Control Features:	Enable, Active Low

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Introduction

DC to DC converters are very important in our daily lives for applications like power supply, high-frequency electrical signal processing, and automotive electronics. They can convert an input DC voltage to an output voltage of either the same or different magnitude. The most common type of DC to DC converter is the IT4815S which works on the principle of pulse width modulation (PWM).

The IT4815S and its working principle

The IT4815S is a high-efficiency, monolithic, integrated Power Management Unit (PMU) IC. It is designed to provide a regulated output voltage with a maximum current of 1A. It is suitable for many DC to DC conversion applications, including DC/DC converters, voltage regulators, and battery chargers.The primary component of the IT4815S is a buck-boost converter which uses PWM to regulate the output voltage. In the buck-boost converter, the input voltage is compared to a reference voltage and the PWM is used to switch an internal power MOSFET at a frequency set by the external clock. This makes the IT4815S a very efficient power converter with a high degree of flexibility.The buck-boost converter works by charging or discharging an inductor between the input and output voltages. The PWM control adjusts the duty cycle of the switch, which in turn determines the output voltage. The duty cycle of the switch is adjusted such that the input voltage and the output voltage are kept in balance and the converter remains in steady state at all times.The IT4815S has a wide input voltage range of 2.5V to 36V and can output either the same or a different voltage. This makes it ideal for applications that require a wide range of input and output voltages, such as automotive electronics, laptop computers, mobile phones, and medical devices.

Applications of IT4815S

The IT4815S is used in numerous applications, such as portable battery chargers, UPS systems, mobile phone chargers, automotive electronics, industrial and medical systems, and telecom systems.In mobile phone chargers, the IT4815S is used to convert the input voltage to the required charging voltage, which is then used to charge the phone battery. In automotive electronics, the IT4815S is used to convert the battery voltage to the required output voltage for different components, such as audio amplifiers, sensors, and solenoids. In industrial and medical systems, the IT4815S is used to deliver a regulated output voltage for different components such as processing units, motors, and LED lighting.The IT4815S is also used in telecom systems to deliver a regulated voltage for powering the telecommunication units. The IT4815S is also used in the energy sector for controlling the energy usage of solar panels and other renewable energy sources.

Conclusion

The IT4815S is a high-efficiency, monolithic, integrated Power Management Unit (PMU) IC which can convert an input DC voltage to an output voltage of either the same or different magnitude. It works on the principle of pulse width modulation (PWM) and is used in numerous applications such as portable battery chargers, UPS systems, mobile phone chargers, automotive electronics, industrial and medical systems, and telecom systems. The IT4815S is an efficient and flexible power converter that is ideal for a wide range of applications.

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