UC2825N

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UC2825N

IC REG CTRLR MULT TOPOLOGY 16DIP

100% gốc & amp; Mới

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Bảo hành 365 ngày

RFQ & amp; Nhận thêm Giảm giá

Thông số kỹ thuật

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) 8.4V ~ 30V
Frequency-Switching 340kHz ~ 460kHz
DutyCycle(Max) 80%
SynchronousRectifier No
ClockSync No
ControlFeatures Current Limit, Enable, Frequency Control, Ramp, Soft Start
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Through Hole
Package/Case 16-DIP (0.300, 7.62mm)

Tổng quan

Description

The UC2825N is a high-performance pulse width modulation (PWM) controller designed for efficient power management and control in various applications. Manufactured by Texas Instruments, this device is part of the UC2825 series and is known for its versatility and robust features. The UC2825N operates with a wide input voltage range and provides precise control over duty cycles, making it suitable for both single-ended and push-pull configurations.
Key features include a high-speed oscillator, a wide frequency range, and programmable duty cycle control. It also boasts features such as soft start, current limiting, and thermal shutdown to enhance reliability and protect against overloading and overheating. Its on-chip error amplifier and fault protection circuitry ensure high stability and safety in power supply applications.
The UC2825N is commonly used in DC-DC converters, motor control systems, and other high-frequency switching power supplies. Its flexibility, combined with advanced control capabilities, makes it a preferred choice for engineers designing efficient and robust power management solutions.

Features

The UC2825N is a high-performance pulse-width modulator (PWM) controller designed for efficient power supply applications. Key features include:
1. High-Speed Operation: Designed for high-frequency power conversion, suitable for advanced power supply designs.
2. BiCMOS Technology: Offers low power consumption and high accuracy, improving overall efficiency.
3. Programmable Oscillator: Allows flexibility in setting the operating frequency, accommodating various power supply requirements.
4. Synchronizable: Can be synchronized with an external clock, enabling parallel power supply operations.
5. Wide Supply Voltage Range: Operates over a broad range of input voltages, enhancing versatility in different applications.
6. Error Amplifier: Includes a high-gain error amplifier for precise voltage regulation and stability.
7. Current Limiting: Provides over-current protection to safeguard the circuit against excessive load conditions.
8. Soft Start Capability: Gradually increases the output voltage during startup to prevent inrush currents.
9. Under-Voltage Lockout (UVLO): Protects the circuit by disabling the output when the supply voltage falls below a specific threshold.
10. Output Drivers: Equipped with totem-pole output stages for direct driving of power MOSFETs or IGBTs.
Overall, the UC2825N is tailored for robust, efficient, and flexible power supply designs.

Package

The UC2825N is a high-performance pulse-width modulation (PWM) controller, typically packaged in a 16-pin plastic Dual In-line Package (DIP). This package type is suitable for through-hole mounting on printed circuit boards.

Pinout

The UC2825N is a high-speed PWM (Pulse Width Modulation) controller designed for power supply applications. It comes in a 16-pin dual in-line package (DIP). Here is 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 (CS): Input for current sensing.
4. RAMP: Provides slope compensation.
5. Soft Start (SS): Controls the soft start function.
6. RT/CT: Sets the oscillator timing.
7. SYNC: Used for oscillator synchronization.
8. Ground (GND): Ground reference.
9. Output A (OUTA): Output drive for channel A.
10. Output B (OUTB): Output drive for channel B.
11. VCC: Supply voltage for the device.
12. VREF: Reference voltage output.
13. Shutdown (SD): Initiates shutdown mode.
14. ILIM/SD: Current limit and shutdown function.
15. PGND: Power ground.
16. VCC Sense (VCCS): Senses VCC for overvoltage protection.
The UC2825N is commonly used in applications requiring precise control of power delivery, such as DC-DC converters and motor controllers.

Manufacturer

The UC2825N is manufactured by Texas Instruments. Texas Instruments is a global semiconductor company that designs and produces a wide array of electronic components, including integrated circuits used in various electronic devices and systems. It is well-known for its innovation and development in semiconductor technology, contributing significantly to the electronics industry with products that serve industries such as consumer electronics, automotive, industrial, and communications.

Application

The UC2825N is a high-performance PWM controller used in various applications, including switch-mode power supplies, DC-DC converters, and motor control systems. Its features make it suitable for applications requiring precise control of the power conversion process, such as telecommunications, industrial power systems, and automotive electronics. The controller's ability to operate at high frequencies and its robust protection mechanisms enhance its utility in environments demanding reliable and efficient power management.

Equivalent

The UC2825N is a high-speed PWM controller commonly used for DC-DC converters. Equivalent or similar products include:
1. UC3825N - Similar specifications, often used interchangeably.
2. TL5001 - A simpler PWM controller for similar applications.
3. LM3524D - A different series but can serve in similar PWM control roles.
4. SG3525 - Another PWM controller with comparable functions.
Always check the specific application requirements and datasheets to ensure compatibility.

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