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UCC3801N
+BOMIC REG CTRLR MULT TOPOLOGY 8DIP
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #UCC3801N
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Part Status | Obsolete |
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Down, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Buck, Boost, Flyback, Forward Converter |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 7.4V ~ 12V |
| Frequency - Switching | 46kHz |
| Duty Cycle (Max) | 49% |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Control Features | Frequency Control |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-PDIP |
| Base Product Number | UCC3801 |
Tổng quan
Description
The UCC3801N is a high-performance voltage mode PWM (Pulse Width Modulation) controller designed for use in switch-mode power supplies. It operates in continuous conduction mode, providing precise control over output voltage and current, making it suitable for applications such as DC-DC converters and power management systems.
Key features include a wide input voltage range, adjustable output voltage, and built-in protection mechanisms such as over-voltage, under-voltage, and thermal shutdown. The device also offers fast transient response, which enhances system stability and performance.
The UCC3801N comes in an 8-pin package, facilitating easy integration into various circuit designs. Its efficiency and robust functionality make it a popular choice among engineers looking to optimize power supply applications.
Key features include a wide input voltage range, adjustable output voltage, and built-in protection mechanisms such as over-voltage, under-voltage, and thermal shutdown. The device also offers fast transient response, which enhances system stability and performance.
The UCC3801N comes in an 8-pin package, facilitating easy integration into various circuit designs. Its efficiency and robust functionality make it a popular choice among engineers looking to optimize power supply applications.
Equivalent
Equivalent products to the UCC3801N chip include the UC3842, LM324 and TL431. These are all voltage mode PWM controllers suitable for similar applications in power management circuits. However, always check specific datasheets for pin compatibility and performance characteristics to ensure they meet your design requirements.
Features
The UCC3801N is a high-performance voltage mode PWM (Pulse Width Modulation) controller designed for power supply applications. Key features include:
1. Wide Input Voltage Range: Operates from 8 V to 30 V, accommodating various power supply requirements.
2. High Switching Frequency: Capable of operating up to 500 kHz, enabling smaller magnetic components and reduced board space.
3. Integrated Soft-Start: Provides controlled start-up to prevent overshoot and inrush current.
4. Dead-Time Control: Ensures efficient operation by minimizing cross-conduction losses.
5. Adjustable Duty Cycle: Allows for flexibility in design and control for different applications.
6. Precision Voltage Reference: Features an accurate 1.25 V reference for improved regulation.
7. Over-Voltage Protection: Safeguards the system against voltage spikes and faults.
8. Thermal Shutdown: Protects the device from overheating and ensures reliability.
Overall, the UCC3801N is ideal for applications requiring efficient and reliable power management solutions.
1. Wide Input Voltage Range: Operates from 8 V to 30 V, accommodating various power supply requirements.
2. High Switching Frequency: Capable of operating up to 500 kHz, enabling smaller magnetic components and reduced board space.
3. Integrated Soft-Start: Provides controlled start-up to prevent overshoot and inrush current.
4. Dead-Time Control: Ensures efficient operation by minimizing cross-conduction losses.
5. Adjustable Duty Cycle: Allows for flexibility in design and control for different applications.
6. Precision Voltage Reference: Features an accurate 1.25 V reference for improved regulation.
7. Over-Voltage Protection: Safeguards the system against voltage spikes and faults.
8. Thermal Shutdown: Protects the device from overheating and ensures reliability.
Overall, the UCC3801N is ideal for applications requiring efficient and reliable power management solutions.
Pinout
The UCC3801N is a high-performance voltage mode controller designed for switching power supplies. It features a total of 16 pins.
Pin Count and Functions:
1. Pin 1: COMP - Compensation network connection for stability.
2. Pin 2: FB - Feedback input for error amplifier.
3. Pin 3: GND - Ground reference.
4. Pin 4: VREF - Reference voltage output.
5. Pin 5: CSN - Current sense negative input.
6. Pin 6: CSP - Current sense positive input.
7. Pin 7: RT - Timing resistor connection for frequency setting.
8. Pin 8: CT - Timing capacitor connection for frequency setting.
9. Pin 9: DISCHARGE - Discharge pin for soft-start capacitor.
10. Pin 10: LATCH - Latch pin for fault protection.
11. Pin 11: PWM - Pulse-width modulation output.
12. Pin 12: TDR - Timing capacitor discharge pin.
13. Pin 13: SR - Soft-start control input.
14. Pin 14: VDD - Supply voltage input.
15. Pin 15: DRV - Driver output for the external power switch.
16. Pin 16: N/C - Not connected (for internal use).
This controller is commonly used in applications requiring high efficiency and precise regulation.
Pin Count and Functions:
1. Pin 1: COMP - Compensation network connection for stability.
2. Pin 2: FB - Feedback input for error amplifier.
3. Pin 3: GND - Ground reference.
4. Pin 4: VREF - Reference voltage output.
5. Pin 5: CSN - Current sense negative input.
6. Pin 6: CSP - Current sense positive input.
7. Pin 7: RT - Timing resistor connection for frequency setting.
8. Pin 8: CT - Timing capacitor connection for frequency setting.
9. Pin 9: DISCHARGE - Discharge pin for soft-start capacitor.
10. Pin 10: LATCH - Latch pin for fault protection.
11. Pin 11: PWM - Pulse-width modulation output.
12. Pin 12: TDR - Timing capacitor discharge pin.
13. Pin 13: SR - Soft-start control input.
14. Pin 14: VDD - Supply voltage input.
15. Pin 15: DRV - Driver output for the external power switch.
16. Pin 16: N/C - Not connected (for internal use).
This controller is commonly used in applications requiring high efficiency and precise regulation.
Manufacturer
The UCC3801N is manufactured by Texas Instruments (TI), a prominent American technology company. Founded in 1930, Texas Instruments designs and produces semiconductors and various integrated circuits, with a strong focus on analog and embedded processing. The company is well-known for its innovations in the fields of analog electronics, digital signal processing, and microcontrollers. TI serves a wide range of markets, including automotive, industrial, communications, and consumer electronics, making it one of the leading suppliers in the semiconductor industry. The UCC3801N is specifically a voltage-mode PWM (Pulse Width Modulation) controller used in power supply applications, showcasing TI's expertise in power management solutions.
Application
The UCC3801N is a high-performance voltage mode PWM controller primarily used in power supply applications. Its key application areas include:
1. Switching Power Supplies: Ideal for AC-DC converters and DC-DC converters.
2. Power Management: Provides efficient control in battery chargers and renewable energy systems.
3. Telecommunication Equipment: Used in power supplies for telecom systems and networking devices.
4. Industrial Power Supplies: Suitable for industrial automation and control systems.
5. Consumer Electronics: Applied in power adapters and chargers for various consumer devices.
Its features enable precise voltage regulation, improved efficiency, and reduced component count in these applications.
1. Switching Power Supplies: Ideal for AC-DC converters and DC-DC converters.
2. Power Management: Provides efficient control in battery chargers and renewable energy systems.
3. Telecommunication Equipment: Used in power supplies for telecom systems and networking devices.
4. Industrial Power Supplies: Suitable for industrial automation and control systems.
5. Consumer Electronics: Applied in power adapters and chargers for various consumer devices.
Its features enable precise voltage regulation, improved efficiency, and reduced component count in these applications.
Package
The UCC3801N is available in a 16-pin dual in-line package (DIP) format.
