Overview
The UC3843BD1013TR is a high-performance current mode PWM (Pulse Width Modulation) controller manufactured by STMicroelectronics. This IC is designed for use in boost, flyback, and forward converter applications, offering a robust and efficient solution for power supply designs. The UC3843BD1013TR is known for its reliability, high frequency operation, and comprehensive set of features that make it suitable for a wide range of power management needs.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 8-SOIC (0.154", 3.90mm Width) |
| Number of Pins | 8 |
| Supply Voltage Range | 11V to 30V |
| Output Current | 1A |
| Frequency | Up to 500kHz |
| Controller Type | Current Mode PWM |
| RoHS Compliance | Yes |
Key Features
- High frequency operation up to 500kHz, allowing for smaller component sizes and higher efficiency.
- Current mode control for improved line and load regulation.
- Internal 1A totem pole output stage for driving N-channel power MOSFETs.
- Low startup current and low operating current for reduced power consumption.
- Under-voltage lockout (UVLO) and over-voltage protection for enhanced reliability.
- Pulse-by-pulse current limiting for overcurrent protection.
Applications
The UC3843BD1013TR is versatile and can be used in various power supply applications, including:
- Boost converters
- Flyback converters
- Forward converters
- DC-DC switching power supplies
- High-frequency power supplies for consumer electronics, industrial equipment, and automotive systems.
Q & A
- What is the UC3843BD1013TR used for?
The UC3843BD1013TR is a current mode PWM controller used in boost, flyback, and forward converter applications for power supply designs. - What is the maximum operating frequency of the UC3843BD1013TR?
The maximum operating frequency is up to 500kHz. - What is the supply voltage range for the UC3843BD1013TR?
The supply voltage range is from 11V to 30V. - Is the UC3843BD1013TR RoHS compliant?
Yes, the UC3843BD1013TR is RoHS compliant. - What type of output stage does the UC3843BD1013TR have?
The UC3843BD1013TR has an internal 1A totem pole output stage. - What kind of protection features does the UC3843BD1013TR offer?
The UC3843BD1013TR offers under-voltage lockout (UVLO), over-voltage protection, and pulse-by-pulse current limiting. - What is the package type of the UC3843BD1013TR?
The package type is 8-SOIC (0.154", 3.90mm Width). - Can the UC3843BD1013TR be used in high-frequency applications?
Yes, it is designed for high-frequency operation. - What is the typical application area for the UC3843BD1013TR?
It is commonly used in DC-DC switching power supplies, consumer electronics, industrial equipment, and automotive systems. - Where can I find detailed specifications and datasheets for the UC3843BD1013TR?
Detailed specifications and datasheets can be found on the official STMicroelectronics website, as well as on distributor websites like Digi-Key and Heisener.
