사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | Automotive, AEC-Q100 |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Up |
| Output Configuration | Positive, Isolation Capable |
| Topology | Boost, Buck, Flyback, Forward |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 7.6V ~ 30V |
| Frequency - Switching | Up to 500kHz |
| Duty Cycle(Max) | 96% |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
개요
Description
The UC2843AQD8RQ1 is a high-performance, fixed-frequency, current-mode PWM (Pulse Width Modulation) controller, part of Texas Instruments' automotive-grade product line. It is designed for use in DC-DC converters and offline switched-mode power supplies. Featuring a low start-up current, the device enhances efficiency and is suitable for applications requiring robustness and reliability.
Key features of the UC2843AQD8RQ1 include a wide operating voltage range, high-speed oscillator, and precise duty cycle control. This ensures accurate and efficient power conversion. The device incorporates protection features such as overcurrent protection, which prevents damage in fault conditions, and undervoltage lockout to ensure proper startup.
The UC2843AQD8RQ1 is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for space-constrained applications. With AEC-Q100 qualification, it meets the rigorous standards required for automotive applications. The controller's versatility and reliability make it an ideal choice for designers looking to develop efficient and robust power management solutions in automotive and industrial systems.
Key features of the UC2843AQD8RQ1 include a wide operating voltage range, high-speed oscillator, and precise duty cycle control. This ensures accurate and efficient power conversion. The device incorporates protection features such as overcurrent protection, which prevents damage in fault conditions, and undervoltage lockout to ensure proper startup.
The UC2843AQD8RQ1 is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for space-constrained applications. With AEC-Q100 qualification, it meets the rigorous standards required for automotive applications. The controller's versatility and reliability make it an ideal choice for designers looking to develop efficient and robust power management solutions in automotive and industrial systems.
Equivalent
The UC2843AQD8RQ1 is a PWM controller for power supply applications. Equivalent products include the UC3843, LM2843, and NCP1200 series. These are non-synchronous PWM controllers with similar features suitable for off-line and DC-DC converter applications. When selecting an equivalent, ensure to compare specifications such as voltage range, current capability, and temperature ratings to match the specific requirements of your application.
Features
The UC2843AQD8RQ1 is a high-performance current-mode PWM controller designed primarily for power supply and DC-DC converter applications. Key features of this device include:
1. Current-Mode Control: Provides better stability and dynamic response by using current-mode architecture.
2. Wide Input Voltage Range: Offers flexibility in various applications with a broad operating input voltage range.
3. High-Speed Operation: Supports high-frequency switching which enhances efficiency and reduces component size.
4. Under-Voltage Lockout (UVLO): Ensures the controller operates only when the supply voltage is within the safe range, preventing potential damage.
5. Programmable Oscillator: Allows customization of the switching frequency to suit different application needs.
6. Precision Reference: Includes a precise reference voltage to ensure stable operation.
7. Short-Circuit Protection: Provides protection against output short circuits, enhancing reliability.
8. Low Start-Up and Operating Current: Minimizes power consumption, making it suitable for energy-efficient designs.
These features make the UC2843AQD8RQ1 a versatile choice for designers looking for reliable and efficient power control solutions in automotive and industrial applications.
1. Current-Mode Control: Provides better stability and dynamic response by using current-mode architecture.
2. Wide Input Voltage Range: Offers flexibility in various applications with a broad operating input voltage range.
3. High-Speed Operation: Supports high-frequency switching which enhances efficiency and reduces component size.
4. Under-Voltage Lockout (UVLO): Ensures the controller operates only when the supply voltage is within the safe range, preventing potential damage.
5. Programmable Oscillator: Allows customization of the switching frequency to suit different application needs.
6. Precision Reference: Includes a precise reference voltage to ensure stable operation.
7. Short-Circuit Protection: Provides protection against output short circuits, enhancing reliability.
8. Low Start-Up and Operating Current: Minimizes power consumption, making it suitable for energy-efficient designs.
These features make the UC2843AQD8RQ1 a versatile choice for designers looking for reliable and efficient power control solutions in automotive and industrial applications.
Pinout
The UC2843AQD8RQ1 is a high-performance, fixed-frequency PWM controller used in DC-DC converters and offline switching power supplies. It is commonly used for voltage regulation and power management applications. This device typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. Compensation (COMP): Provides feedback for loop compensation.
2. Voltage Feedback (VFB): Receives the output voltage feedback; used with COMP for error amplification.
3. Current Sense (CS): Monitors current for over-current protection.
4. RT/CT: Sets the oscillator frequency with an external resistor and capacitor.
5. GND: Ground connection for the IC.
6. Output (OUT): Drives the gate of a MOSFET or transistor to control power.
7. VCC: Supplies the power to the IC.
8. VREF: Provides a reference voltage for internal circuitry and external use.
These functions enable the UC2843AQD8RQ1 to manage efficient power conversion with precise control over output voltage and current, making it suitable for various power supply designs.
1. Compensation (COMP): Provides feedback for loop compensation.
2. Voltage Feedback (VFB): Receives the output voltage feedback; used with COMP for error amplification.
3. Current Sense (CS): Monitors current for over-current protection.
4. RT/CT: Sets the oscillator frequency with an external resistor and capacitor.
5. GND: Ground connection for the IC.
6. Output (OUT): Drives the gate of a MOSFET or transistor to control power.
7. VCC: Supplies the power to the IC.
8. VREF: Provides a reference voltage for internal circuitry and external use.
These functions enable the UC2843AQD8RQ1 to manage efficient power conversion with precise control over output voltage and current, making it suitable for various power supply designs.
Manufacturer
The UC2843AQD8RQ1 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. The company is known for its innovations in analog and embedded processing chips, which are used in various applications across industries such as automotive, industrial, consumer electronics, and communications equipment. Texas Instruments is one of the largest semiconductor companies in the world, with a strong emphasis on innovation, quality, and reliability.
Application
The UC2843AQD8RQ1 is a high-performance current-mode PWM controller primarily used in power supply applications. Its key application areas include:
1. DC-DC Converters: Used in step-up (boost), step-down (buck), and other converter topologies for efficient voltage regulation.
2. AC-DC Power Supplies: Applied in designing efficient switch-mode power supplies (SMPS) for various electronic devices.
3. Battery Chargers: Utilized in battery management systems for controlling and optimizing the charging of batteries.
4. Motor Control: Employed in controlling the power and speed of motors in industrial and consumer electronics.
5. LED Drivers: Used for driving LED lighting systems by providing regulated current output.
These applications benefit from its high performance and reliability in energy conversion and management tasks.
1. DC-DC Converters: Used in step-up (boost), step-down (buck), and other converter topologies for efficient voltage regulation.
2. AC-DC Power Supplies: Applied in designing efficient switch-mode power supplies (SMPS) for various electronic devices.
3. Battery Chargers: Utilized in battery management systems for controlling and optimizing the charging of batteries.
4. Motor Control: Employed in controlling the power and speed of motors in industrial and consumer electronics.
5. LED Drivers: Used for driving LED lighting systems by providing regulated current output.
These applications benefit from its high performance and reliability in energy conversion and management tasks.
Package
The UC2843AQD8RQ1 is typically available in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is compact and suitable for surface mounting on printed circuit boards, commonly used in automotive and industrial applications for efficient power management.
