Texas Instruments

UC2845AD8TR  

Power Supply Controllers, Monitors

The UC2845AD8TR is a high-performance pulse width modulation (PWM) controller manufactured by Texas Instruments. This device is designed to provide precise control of power conversion in various applications, such as LED dimming, battery charging, and motor control.

Description:

The UC2845AD8TR is a monolithic integrated circuit that combines a high-voltage power MOSFET driver, error amplifier, oscillator, and reference voltage source into a single package. It is available in an 8-pin dual-in-line package (DIP-8) and operates with a supply voltage range of 6V to 40V.

Features:

1. High-voltage power MOSFET driver: The UC2845AD8TR features a high-voltage power MOSFET driver capable of driving N-channel MOSFETs with voltage ratings up to 600V.
2. Error amplifier: The device includes an internal error amplifier for feedback control, allowing for precise regulation of the output voltage or current.
3. Oscillator: The UC2845AD8TR incorporates an internal oscillator that generates a PWM signal with a frequency range of 300Hz to 1MHz.
4. Reference voltage source: The device provides an internal reference voltage source for accurate control of the output voltage or current.
5. Protection features: The UC2845AD8TR offers various protection features, such as overcurrent protection, overvoltage protection, and thermal shutdown.
6. Small package size: The DIP-8 package allows for easy integration into compact designs.

Applications:

1. LED dimming: The UC2845AD8TR can be used to control the brightness of LED lighting systems by adjusting the PWM signal.
2. Battery charging: This device can be used in battery charging applications to regulate the charging current and voltage, ensuring safe and efficient charging.
3. Motor control: The UC2845AD8TR can be used in motor control applications to control the speed and direction of DC motors using PWM signals.
4. Power supply control: The device can be used to regulate the output voltage and current of power supplies, such as switching power supplies and linear regulators.
5. Class D audio amplifiers: The UC2845AD8TR can be used in Class D audio amplifiers to control the output power and improve efficiency.

In summary, the Texas Instruments UC2845AD8TR is a versatile PWM controller that offers high performance and precision control in various applications, such as LED dimming, battery charging, motor control, power supply control, and Class D audio amplifiers. Its features, such as a high-voltage power MOSFET driver, error amplifier, oscillator, and reference voltage source, make it a suitable choice for designers looking for a reliable and efficient solution in their power conversion projects.

UC2845AD8TR Documents

Download datasheets and manufacturer documentation for UC2845AD8TR

Datasheets :

UC1842A-45A, UC2842A-45A, UC3842A-45A      

HTML Datasheet :

UC1842A-45A, UC2842A-45A, UC3842A-45A      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018       UCYYY 13/DEC/2017