IH1212D

Current - Output (Max):	84mA, 84mA
Control Features:	--
Size / Dimension:	0.80" L x 0.40" W x 0.27" H (20.3mm x 10.2mm x 6.9mm)
Package / Case:	6-DIP Module
Mounting Type:	Through Hole
Efficiency:	82%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Voltage - Isolation:	1kV
Power (Watts):	2W
Series:	IH
Voltage - Output 3:	--
Voltage - Output 2:	-12V
Voltage - Output 1:	12V
Voltage - Input (Max):	13.2V
Voltage - Input (Min):	10.8V
Number of Outputs:	2
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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DC DC Converters: IH1212D Application field and Working Principle

DC/DC converters are used to convert a direct current (DC) voltage into a different DC voltage, usually higher than or lower than the original. The IH1212D is a type of DC/DC converter, often used in certain key communication equipment. In this article, we’ll discuss the application field and working principle of the IH1212D.

Application Field

The IH1212D uses linear topology technology and synchronous rectifier technology to produce DC/DC converters that are up to 95 percent efficient. It is notably effective in power critical applications such as routers, networking, VoIP, broadband access, VoIP infrastructure, probes and switches, fueling consumer and RF applications. The IH1212D comes in a range of outputs, from 0-0.7 to 0-24 volts. It is an isolated converter, meaning that it is especially suitable for applications where the input voltage exceeds the output voltage. It also boasts a wide input voltage range, from 4.5 to 16V, and supports VoIP and data signal transmission. Its built-in control loops maintain output voltage and power automatically, while its fast transient response provides real-time protection.

Working Principle

The IH1212D uses a flyback topology and transformer design to regulate the power flow from the input voltage to output. The input voltage is stepped up to a higher voltage level by the transformer, which then passes through a rectifying diode, which helps to regulate the current. The transformer further steps down the voltage, and the voltage is then regulated through a voltage regulator circuit and resistor and capacitor network. The IH1212D also features a high-frequency modulation circuit that acts as a switching device for controlling the output voltage. As the voltage decreases, the circuit responds by turning the power off and cutting off the power supply from the output. The circuit then waits for a predetermined time before allowing the power to flow again. The IH1212D also features two separate DC/DC converters: one to directly regulate the output voltage and one to provide early diagnosis detection through a voltage changeover switch circuit. This provides a high level of accuracy and helps to reduce the risk of overloads and other potential faults. In addition to the circuit design, the IH1212D also features a built-in current controller that monitors the output current to ensure accuracy. This ensures optimal levels of performance and stability.

Conclusion

In conclusion, the IH1212D is a highly efficient and reliable DC/DC converter, suitable for a variety of power-critical applications. Its wide input voltage range, voltage regulator circuits, and fast response times make it an ideal choice for consumer and RF applications. Its built-in current controller ensures accuracy, while its high-frequency modulation circuit helps to provide precise voltage control and protection.

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