UC2846N

Изображения являются только для ссылки

UC2846N

+БОМ

IC REG CTRLR MULT TOPOLOGY 16DIP

  • ПроизводительТехасские инструменты

  • Мфр. Часть #UC2846N

  • Лист данных UC2846N DataSheet

  • Пакет PDIP-16

  • В наличии2419

365 Дни гарантии качества

7*24 часы обслуживания каранти

90-гарантия послепродажного дня

Гарантия подлинного продукта

Спецификации

Атрибут Ценность
Package Bulk,Tube
ProductStatus Active
OutputType Transistor Driver
Function Step-Up, Step-Up/Step-Down
OutputConfiguration Positive
Topology Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
NumberofOutputs 2
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 6.95V ~ 40V
Frequency-Switching 500kHz
DutyCycle(Max) 50%
SynchronousRectifier Yes
ClockSync Yes
ControlFeatures Current Limit, Enable, Frequency Control, Soft Start
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Through Hole
Package/Case 16-DIP (0.300, 7.62mm)

Обзор

Description

The UC2846N is a high-performance, dual-channel pulse width modulation (PWM) controller designed for power supply applications. It features precise control of power conversion systems, making it ideal for use in DC-DC converters, power inverters, and other power management systems. Key features include dual PWM channels, current-mode control for improved performance, and a wide range of input voltage compatibility. The UC2846N supports high-speed operation, allowing efficient and reliable control of switching elements in power systems.
With built-in protection features such as overcurrent protection and under-voltage lockout, the UC2846N enhances system reliability and safety. Its design also includes error amplifiers and a voltage reference, which help maintain stability and accuracy in output voltage regulation. This controller is commonly used in industrial, consumer electronics, and telecommunications applications, where precise power management is crucial. The UC2846N is available in a standard DIP package, facilitating easy integration into various circuit designs. Its robust functionality and reliability make it a popular choice for engineers designing advanced power supply systems.

Equivalent

The UC2846N is a current-mode PWM controller commonly used in power supply applications. Equivalent products include:
1. TL494
2. SG3525
3. LM3524
4. UC3846
These alternatives offer similar functionalities and can be considered depending on the specific requirements of the application such as voltage ratings, frequency, and additional features. Always check the datasheets for compatibility.

Features

The UC2846N is a versatile PWM controller designed for use in high-performance power supply applications. Key features include:
1. Dual Output: It supports dual alternating outputs, which are ideal for push-pull and half-bridge converters.
2. High Performance: Offers a wide operating frequency range up to 500 kHz, making it suitable for high-frequency applications.
3. Precision Voltage Reference: Features an accurate 5V reference voltage with minimal temperature drift, ensuring reliability and stability in operation.
4. Current Limiting: Incorporates current limiting capabilities to protect against overcurrent conditions, enhancing the safety and longevity of your power supply circuits.
5. Under-Voltage Lockout (UVLO): Protects the system by shutting down the outputs until a safe voltage level is reached, preventing damage during start-up and shutdown.
6. Low Start-Up Current: Minimizes power consumption during start-up phases.
7. Soft-Start Capability: Gradually increases output voltage during start-up, reducing stress on components.
These features make the UC2846N a solid choice for robust and efficient power supply design.

Pinout

The UC2846N is a pulse width modulation (PWM) controller IC that is commonly used in power supply and motor control applications. It is part of the UC284x series and is manufactured by various companies, including Texas Instruments. The UC2846N typically comes in a 16-pin dual in-line package (DIP).
Here's a brief overview of its pin functions:
1. Compensation (COMP): Used for error amplifier compensation.
2. Voltage Feedback (VFB): Input for voltage feedback.
3. Current Sense (ISENSE): Used for current sensing.
4. RT/CT: Timing resistor and capacitor for setting the oscillator frequency.
5. Ground (GND): Ground reference for the IC.
6. Output (OUTA): Output for controlling external power devices.
7. Output (OUTB): Second output for controlling external power devices.
8. VCC: Supply voltage for the controller.
9. Shutdown (SD): Input for shutting down the output.
10. Reference Output (REF): Provides a reference voltage output.
11. Soft Start (SS): Used for soft-starting the PWM to prevent inrush current.
12. Sync (SYNC): Synchronization input for multiple controllers.
13. Frequency Set (FSET): Sets the switching frequency.
14. Error Amplifier Inverting Input (EAIN-): Inverting input for the error amplifier.
15. Error Amplifier Non-Inverting Input (EAIN+): Non-inverting input for the error amplifier.
16. Power Ground (PGND): Ground for power connections.
This IC provides precise control of power devices, enabling efficient power management in various applications.

Manufacturer

The UC2846N is manufactured by Texas Instruments, a leading global semiconductor company. Texas Instruments designs and produces a wide range of semiconductor products, including integrated circuits and embedded processors. The company is known for its innovations in analog and digital signal processing applications and plays a significant role in the electronics industry, providing components for markets such as industrial, automotive, personal electronics, and communications.

Application

The UC2846N is a voltage-mode PWM controller primarily used in power supply applications. Its application areas include:
1. DC-DC Converters: It regulates output voltage in step-up/down converters.
2. AC-DC Power Supplies: Utilized in converting AC mains to regulated DC output.
3. Battery Chargers: Provides controlled charging with overcurrent protection.
4. Motor Drives: Facilitates efficient motor control and regulation.
5. Power Management Systems: Part of advanced power distribution systems for optimized power use.
Its features, like high-speed operation and adjustable duty cycle, make it versatile for various industrial and consumer electronics applications.

Package

The UC2846N is typically available in a Dual In-line Package (DIP), specifically a 16-pin DIP package. This package type is commonly used for through-hole mounting on printed circuit boards.

Продукты, связанные с UC2846N