Overview
The UC3843AD1013TR is a high-performance current mode PWM controller produced by STMicroelectronics. This component is part of the UC3843 family, which is designed to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. It is particularly useful for applications requiring precise duty cycle control and robust protection features.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Part Number | UC3843AD1013TR |
| Package Type | SO-8 |
| Voltage Range | 7.6V to 30V |
| Operating Temperature | 0°C to 70°C |
| Switching Frequency | Up to 500 kHz |
| UVLO (Under Voltage Lockout) | 8.4V/7.6V |
| Duty Cycle | 100% |
| RoHS Compliance | Ecopack2 |
Key Features
- High-performance current mode PWM controller
- Internal trimmed oscillator for precise duty cycle control
- Under voltage lockout (UVLO) with 8.4V/7.6V thresholds
- 100% duty cycle capability
- Operating temperature range of 0°C to 70°C
- Minimal external parts count required for implementation
- RoHS compliant (Ecopack2)
Applications
The UC3843AD1013TR is suitable for a variety of power management applications, including:
- Off-line and DC to DC converters
- Fixed frequency current mode control schemes
- Power supplies requiring high efficiency and reliability
- Automotive and industrial power systems
Q & A
- What is the primary function of the UC3843AD1013TR?
The UC3843AD1013TR is a high-performance current mode PWM controller designed for implementing off-line or DC to DC fixed frequency current mode control schemes. - What is the operating temperature range of the UC3843AD1013TR?
The operating temperature range is 0°C to 70°C. - What is the UVLO threshold for the UC3843AD1013TR?
The UVLO thresholds are 8.4V and 7.6V. - What is the maximum switching frequency of the UC3843AD1013TR?
The maximum switching frequency is up to 500 kHz. - Is the UC3843AD1013TR RoHS compliant?
Yes, it is RoHS compliant with Ecopack2. - What package type does the UC3843AD1013TR come in?
The UC3843AD1013TR comes in an SO-8 package. - What are some common applications for the UC3843AD1013TR?
Common applications include off-line and DC to DC converters, fixed frequency current mode control schemes, and power supplies in automotive and industrial systems. - Does the UC3843AD1013TR support 100% duty cycle operation?
Yes, it supports 100% duty cycle operation. - What is the voltage range for the UC3843AD1013TR?
The voltage range is from 7.6V to 30V. - Where can I find detailed specifications for the UC3843AD1013TR?
Detailed specifications can be found in the datasheet available from STMicroelectronics or authorized distributors like Mouser and Digi-Key.
