Overview
The UCC28C43D, manufactured by Texas Instruments, is a high-performance current-mode PWM controller designed for AC/DC and DC/DC power conversion applications. This BiCMOS low-power controller is part of the UCC28C43 series and is housed in an SOIC-8 package, making it suitable for surface-mount technology (SMT). It is RoHS compliant and targets applications requiring efficient power management, such as boost, flyback, and forward topologies. With a maximum switching frequency of 1 MHz and a wide operating temperature range of -40°C to +105°C, the UCC28C43D is ideal for industrial, automotive, and consumer electronics applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input/Supply Voltage (Min) | 7.6 | V | |
| Input/Supply Voltage (Max) | 18 | V | |
| Output Voltage | 18 | V | |
| Output Current | 1 | A | |
| Switching Frequency | 1 | MHz | |
| Maximum Duty Cycle | 100 | % | |
| Operating Supply Current | 2.3 | mA | |
| Operating Temperature Range | -40 to +105 | °C | |
| Package | SOIC-8 | ||
| Mounting Style | SMD/SMT |
Key Features
- High-performance current-mode PWM control for efficient power conversion.
- Supports boost, flyback, and forward topologies.
- Wide input voltage range from 7.6V to 18V.
- High switching frequency of up to 1 MHz for compact designs.
- Low operating supply current of 2.3 mA for reduced power consumption.
- Robust operating temperature range from -40°C to +105°C.
Applications
The UCC28C43D is widely used in various power management applications, including industrial automation, automotive electronics, and consumer electronics. Its ability to handle high switching frequencies and low power consumption makes it suitable for compact and efficient power supply designs. Typical applications include AC/DC adapters, LED drivers, and battery chargers.
Q & A
1. What is the maximum switching frequency of the UCC28C43D?
The maximum switching frequency is 1 MHz.
2. What is the operating temperature range of the UCC28C43D?
It operates from -40°C to +105°C.
3. What package does the UCC28C43D come in?
It is available in an SOIC-8 package.
4. Is the UCC28C43D RoHS compliant?
Yes, it is RoHS compliant.
5. What topologies does the UCC28C43D support?
It supports boost, flyback, and forward topologies.
6. What is the input voltage range for the UCC28C43D?
The input voltage ranges from 7.6V to 18V.
7. What is the maximum duty cycle of the UCC28C43D?
The maximum duty cycle is 100%.
8. What is the output current capability of the UCC28C43D?
It can deliver up to 1 A of output current.
9. What is the operating supply current of the UCC28C43D?
The operating supply current is 2.3 mA.
10. What are typical applications of the UCC28C43D?
Typical applications include AC/DC adapters, LED drivers, and battery chargers.
