Description
The Texas Instruments UCC28C42DR is a current-mode switching controller designed for high-frequency, low-power applications. It features a precision trimmed reference (1%), uncommitted error amplifier, and over-voltage protection circuitry. This BICMOS device operates at up to 1000kHz and can handle currents of up to 1A.
The UCC28C42DR is commonly used in power supplies, battery chargers, LED lighting, and other industrial and consumer electronics where power management and regulation are required. Its low start-up current, high-voltage startup source, and precision reference make it suitable for a wide range of applications. The device also features a duty ratio that can be up to 95% and generates its own supply rail.
Overall, the UCC28C42DR is a versatile switching controller that offers reliable performance and flexibility in a compact SOIC-8 package.
Features
The UCC28C42DR features include:
- Low start-up current
- High-voltage startup source
- Precision trimmed reference (1%)
- Uncommitted error amplifier
- Duty ratio can be up to 95%
- Generates own supply rail
- Low-power standby mode
- Over-voltage protection circuitry
These features make it suitable for applications such as power supplies, battery chargers, and LED lighting, as well as various industrial and consumer electronics where power management and regulation are required.
Package
The package type of UCC28C42DR is SOIC-8 (Small Outline Integrated Circuit - 8).
Pinout
The UCC28C42DR has an 8-pin SOIC package.
Here's a concise overview of its pins:
- VCC: Positive supply voltage
- GND: Ground
- OUT: Output voltage
- COMP: Error amplifier output
- REF: Reference voltage input
- START: Start-up input
- FB: Feedback input
- EN: Enable input
These pins allow the UCC28C42DR to regulate and manage power in various applications, such as power supplies, battery chargers, and LED lighting.
Manufacturer
The manufacturer of the UCC28C42DR is Texas Instruments (TI). Texas Instruments is a leading semiconductor company that designs, manufactures, tests, and sells analog and embedded processing chips. The company was founded in 1930 and is headquartered in Dallas, Texas. TI is a global leader in the development and manufacturing of semiconductors, with a wide range of products used in various industries such as automotive, industrial, medical, and consumer electronics.
Applications
According to the product information, the application areas of UCC28C42DR include:
- Power supplies
- Battery chargers
- LED lighting
- Various industrial applications where power management and regulation are required
- Consumer electronics where power management and regulation are needed
These applications leverage the controller's low start-up current, high-voltage startup source, precision reference, and other features to regulate voltage and control current.
Equivalent
Based on the product information, the equivalent products of UCC28C42DR are likely to be other current-mode switching controllers from Texas Instruments or other manufacturers that offer similar features such as low start-up current, high-voltage startup source, precision trimmed reference, and over-voltage protection circuitry. Some possible alternatives could include the NCP380 from ON Semiconductor, the LM5117 from Texas Instruments, or the TPS6109 from Texas Instruments.
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