R2S-2409/P-R

Current - Output (Max):	222mA
Size / Dimension:	0.50" L x 0.42" W x 0.35" H (12.8mm x 10.7mm x 9.0mm)
Package / Case:	8-SMD Module, 5 Leads
Mounting Type:	Surface Mount
Efficiency:	85%
Operating Temperature:	-40°C ~ 100°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1kV
Power (Watts):	2W
Series:	ECONOLINE R2S
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	9V
Voltage - Input (Max):	26.4V
Voltage - Input (Min):	21.6V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Tape & Reel (TR)

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DC DC Converters: R2S-2409/P-R application field and working principle

DC DC converters are used to address design challenges related to DC voltage conversion. They are commonly found in all types of electronic equipment including automotive, aerospace, computers, telecommunications, industrial, medical, and many more. The R2S-2409/P-R DC-DC is a high-efficiency, non-isolated module with low ripple and low input noise. It has a wide output voltage range of ±0.9V to 30V. It is a single-rail two-channel synchronous step-down DC-DC converter designed to save space and reduce weight. Application Field: The R2S-2409/P-R DC-DC module is well suited for a variety of applications. It can be used to provide steady power supplies to digital logic circuits and other low voltage circuits which require reliable, clean power. It provides the ideal solution for automotive, industrial and medical control systems which require a stable and accurate power supply. It is also used for powering radio frequency applications such as short-range wireless communication, or providing secondary power sources for base stations, radio transceivers, and so on. Working Principle: The R2S-2409/P-R DC-DC converter works by a closed loop current controlling method which is based on the following features:

• Low ripple and low input noise
• High efficiency up to 96%
• Wide input voltage range from ±0.9V to 30V
• Wide output voltage range from 10V to 80V
• High power conversion ratio up to 16:1
• Short-circuit protection and thermal protection
• Soft start circuit, brown-out protection and under-voltage protection

The R2S-2409/P-R DC-DC module operates with two integrated buck converters in parallel to internally generate two positive and negative voltages with an adjustable output voltage in a wide range from 10V to 80V. The module is driven by an internal oscillator which controls the charging and discharging of the two output flying capacitors. The two buck converters are electrically isolated from each other and provide high efficiency up to 96%. The output voltage is adjusted by two feedback resistors that are connected to a voltage control terminal. The module has an integrated soft-start circuit to limit the inrush current during startup and a brown-out protection to protect the device from short-term voltage dips. In order to protect the module from overloading, it also has an over-current protection and thermal protection. In case of a short-circuit, the module has an over-voltage protection that will shut down automatically. In summary, the R2S-2409/P-R DC-DC module is a high-performance and cost-effective solution for a variety of applications which require reliable and clean power. It offers a wide range of features such as low ripple and low input noise, high-efficiency and protection from overload. The wide output voltage range and high power conversion ratio make it a perfect choice for applications like radio frequency and automotive control systems.

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