TDR 3-1223WI

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DC-DC converters are electrical circuits that convert one direct current (DC) voltage to either another DC voltage or an alternating current (AC) voltage. The TDR 3-1223WI is a DC-DC converter that is mainly used for high-reliability applications such as remote control systems, emergency power supplies, and communication systems. It is a motorless, non-isolated power converter which operates at a high-efficiency rate of up to 95%.

Applications

The TDR 3-1223WI features a wide variety of applications and is suitable for demanding automotive, military and aerospace industry applications. It is designed to operate over a wide range of temperatures from -25°C to +125°C and features an input voltage range of 4.5V-26V and an output voltage of 0.8-15V. It is capable of delivering up to 26W of power.

The device has low noise operation, low output voltage dropout, and remote sense capabilities for accurately controlling an output voltage. It also has short-circuit protection and an external enable pin for controlling the device. The device also features an adjustable power-saving mode to reduce energy consumption. It is built with control loops for temperature protection and overtemperature protection.

Working Principle

The TDR3-1223WI utilizes a buck converter topology that enables efficient voltage conversion. This topology works by controlling the output voltage by regulating the switching operating frequency of the device. The TDR3-1223WI can efficiently convert DC input voltages to an adjustable DC output voltage, without the need for a transformer or bulky inductors.

The device utilizes a low on-state resistance synchronous power MOSFET which ensures high power conversion efficiency. The input voltage is applied to the drain of the MOSFET which forms the output of the buck converter. A very precise frequency oscillator is used to switch the MOSFET and deliver a rectangular waveform. The frequency of this oscillator is adjusted by the external feedback network, which enables precise control of the output voltage.

The device also utilizes a loop compensation block to ensure stability and prevent oscillations. This compensation block helps to control the device’s response time to varying inputs by adjusting the gain of the feedback loop. The device also features an external ON/OFF pin, which allows the user to control the output voltage by enabling or disabling the device.

Conclusion

The TDR 3-1223WI is a versatile DC-DC converter that can be used in demanding applications such as automotive, military and aerospace. It is built with a low on-state resistance synchronous power MOSFET for high efficiency and utilizes a buck topology with a precise frequency oscillator to accurately control the output voltage. It is equipped with a power-saving mode and features temperature protection circuitry for preventing thermal damage.

The specific data is subject to PDF, and the above content is for reference