UCC28C44DGKR

The UCC28C44DGKR is a high-performance, current-mode PWM (Pulse Width Modulation) controller designed for efficient power management in switching power supplies. Part of Texas Instruments' UCC28C4x family, it is utilized in various applications requiring reliable and precise voltage regulation, such as in AC/DC adapters, DC/DC converters, and offline battery chargers.
Key features of the UCC28C44DGKR include a wide operating temperature range, low start-up and operating current, and high-speed operation with a maximum frequency of 1 MHz. It also incorporates advanced protection features like under-voltage lockout, current limiting, and thermal shutdown, enhancing reliability and safety in harsh operating conditions.
The device comes in a small-outline (SOIC) package, making it suitable for space-constrained designs. Its versatility and robust performance make it an ideal choice for engineers and designers looking to optimize power efficiency and system stability in their electronic products.

The UCC28C44DGKR is a high-performance, current-mode PWM controller designed for offline and DC-to-DC converter applications. Key features include:
1. Wide Input Voltage Range: Operates effectively over a broad input voltage range, making it versatile for different power supply applications.

2. Current-Mode Control: Provides improved transient response and simplifies loop compensation, ensuring stable operation.
3. Frequency Operation: Capable of operating at fixed frequencies, typically up to 1 MHz, allowing for design flexibility and reduced component sizes.
4. Low Start-Up and Operating Current: Features low start-up current (nominally 50 μA) and low operating current, contributing to high efficiency, particularly in standby modes.
5. Under-Voltage Lockout (UVLO): Offers UVLO protection with hysteresis, ensuring the controller only operates when the input voltage is within the specified range, preventing erratic startups.
6. Soft Start Capability: Integrates soft start to limit inrush current during power-up, improving reliability.
7. Protection Features: Includes cycle-by-cycle current limiting and thermal shutdown for robust protection against overload and overheating conditions.
8. Small Footprint: Packaged in a compact SOIC-8, it saves board space, suitable for compact power supply designs.
These features make the UCC28C44DGKR ideal for high-efficiency and compact power supply solutions.

The UCC28C44DGKR is typically available in a standard SOIC-8 (Small Outline Integrated Circuit) package, which features eight pins and is designed for surface-mount technology.

The UCC28C44DGKR is an integrated circuit from Texas Instruments and is part of the UCC28C4x family of low-power PWM controllers. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Below are the pin functions:
1. COMP: The output of the error amplifier and input to the PWM comparator, used for loop compensation.
2. VFB: The inverting input of the error amplifier, connected to the feedback network.
3. CS: The input to the current sense comparator, used for current limiting and control.
4. RT/CT: Timing network connection for setting the oscillator frequency.
5. GND: Ground reference for the IC.
6. OUT: The output pin that drives the gate of an external MOSFET switch.
7. VDD: The supply voltage input.
8. VREF: Provides a reference voltage output, typically used for external circuitry.
This IC is used in power supply applications for regulating output voltage and current by driving an external MOSFET.

The UCC28C44DGKR is manufactured by Texas Instruments. Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. They are known for producing analog chips and embedded processors that are used in various applications, including automotive, industrial, consumer electronics, and communication equipment. Texas Instruments is recognized for its innovation and significant contributions to the electronics industry.

The UCC28C44DGKR is a high-performance current-mode PWM controller used primarily in power supply applications. Its application areas include isolated DC-DC converters, off-line power supplies, industrial power systems, and telecom power systems. It is well-suited for use in situations requiring efficient energy conversion and precise control of power delivery, thanks to features like low startup current and high-frequency operation capability.

The UCC28C44DGKR is a PWM controller by Texas Instruments. Equivalent products include the UC3842 series, such as the UC3842, UC3843, UC3844, and UC3845, by ON Semiconductor and STMicroelectronics. Other alternatives include the NCP1200 series by ON Semiconductor and the FAN7554 by Fairchild Semiconductor. Ensure the pin configuration, frequency, and other specifications match your requirements when selecting a substitute.