UC2842D8TRG4

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

The UC2842D8TRG4 is a member of a family of DC-to-DC switching controllers designed for use in applications requiring accurate, regulated output voltages in the range of 6V to 16V. It features a wide input voltage range from 10V to 60V and a wide safety window of 2V to 10V, allowing for a range of supply voltages for powering a wide variety of applications. Its wide range of features, including an adjustable overcurrent protection, an adjustable soft-start, and a low-ripple overvoltage protection make it the ideal device for efficient power management. The UC2842D8TRG4 is well-suited for a wide range of applications, such as motor drives, solar battery systems, and white-goods.

The UC2842 family of switching controllers use a constant off-time pulse width modulation (PWM) technique to regulate the output voltage. A fixed-frequency oscillator is used to generate the control signal that triggers the switching output. The frequency is adjusted and optimized according to the output demand and the supply voltage. Making use of the cost-effective and reliable non-synchronous MOSFET drive topology, the frequency is set in a range of 40kHz to 100kHz. The PWM technique allows the controller to maintain a nearly constant frequency over a wide range of loads and input voltages.

The UC2842D8TRG4 is designed to maintain an accurate and stable output voltage. The output of the controller may be connected to a pulse-width-modulation (PWM) driver or a linear regulator for further control and accuracy. The device\'s on-time is adjustable through a current sensing resistor. The current-sensing threshold voltage is adjusted with a single external resistor. Lastly, the controller features two low-noise comparators, enabling hysteretic regulation of the output voltage.

The UC2842D8TRG4 also offers over-current protection, allowing the controller to shut off power to the output device when an over-current event is detected. The over-current threshold voltage is set through the adjustment of an external resistor. In addition, the UC2842D8TRG4 also incorporates a soft-start feature, which prevents an overshoot of the output voltage and helps with power supply sequencing. The soft-start time is adjustable by an external capacitor. Lastly, the UC2842D8TRG4 also offers low-ripple overvoltage protection, which protects the output from damaging surges caused by external sources.

In conclusion, the UC2842D8TRG4 is a high-performance voltage regulator designed for a variety of applications, including motor drives, solar battery systems, and white-goods. The device utilizes a constant off-time pulse width modulation technique to maintain an accurate and stable output voltage. It also features adjustable current sensing, adjustable soft-start, and low-ripple overvoltage protection for an additional layer of protection. Together these features make the UC2842D8TRG4 an ideal device for power management.

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