UC28025DW

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UC28025DW

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IC REG CTRLR MULT TOP 16SOIC

  • HerstellerTexas Instruments

  • Herstellerteil #UC28025DW

  • Paket SOIC-16

  • Auf Lager2195

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Spezifikationen

Attribut Wert
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 2
Voltage-Supply(Vcc/Vdd) 9V ~ 30V
Frequency-Switching 340kHz ~ 460kHz
DutyCycle(Max) 45%
SynchronousRectifier Yes
ClockSync No
ControlFeatures Current Limit, Enable, Frequency Control, Ramp, Soft Start
OperatingTemperature -40°C ~ 105°C (TA)
MountingType Surface Mount
Package/Case 16-SOIC (0.295, 7.50mm Width)

Übersicht

Description

The UC28025DW is a high-performance pulse width modulation (PWM) controller designed for off-line and DC-to-DC converter applications. It is part of the UC2802x family, which is widely used in power electronics due to its efficiency and reliability. The DW suffix indicates a specific package type, typically the SOIC-16 surface-mount package.
Key features of the UC28025DW include:
1. Programmable Oscillator: Offers a wide frequency range, allowing for flexibility in various applications.
2. Dual Output: Provides dual alternating outputs, facilitating the drive of push-pull or half-bridge configurations.
3. Precision Voltage Reference: Ensures stable and accurate voltage regulation.
4. Current Sense Capability: Enhances protection by enabling overcurrent protection features.
5. Synchronization Features: Allows for synchronization with external signals, useful in multi-controller systems.
These characteristics make the UC28025DW suitable for applications in power supplies, motor controllers, and other systems requiring precise control of power conversion processes. Its robust design and features contribute to its popularity among engineers designing power management solutions.

Equivalent

The UC28025DW is a high-performance pulse-width modulation (PWM) controller. Equivalent products include:
1. TI UC3825 - A similar PWM controller from Texas Instruments.
2. ON Semiconductor NCP1653 - Offers high-performance features.
3. STMicroelectronics L6562 - A comparable transition mode PFC controller.
4. Fairchild/ON Semiconductor KA3525A - A PWM controller with similar applications.
Make sure to check the datasheets for compatibility and specific application requirements.

Features

The UC28025DW is a high-performance PWM controller designed for efficient power management in a variety of applications. Key features include:
1. Wide Input Voltage Range: Operates efficiently over a broad input voltage range.
2. Current Mode Control: Provides accurate output control and fast transient response.
3. Fixed Frequency Operation: Ensures stable operation with programmable frequency settings.
4. High Output Drive: Capable of driving power MOSFETs with high peak current capabilities.
5. Undervoltage Lockout (UVLO): Protects the system by shutting down the device at low input voltages.
6. Soft-Start Function: Gradually increases the duty cycle to prevent inrush current at startup.
7. Synchronization Capability: Allows multiple controllers to operate in synchrony for complex systems.
8. Low Start-Up Current: Reduces power consumption and supports energy-efficient designs.
9. Overcurrent Protection: Safeguards against excessive current conditions.
10. Thermal Shutdown: Protects the device from damage due to overheating.
These features make the UC28025DW suitable for a variety of power supply designs, offering reliability and efficiency.

Pinout

The UC28025DW is a high-performance pulse-width modulation (PWM) controller designed for use in switch-mode power supplies. It is commonly used for applications requiring efficient power conversion. The UC28025DW is part of the UC2802x family and comes in a 16-pin SOIC (Small Outline Integrated Circuit) package.
Here is a concise description of the pin functions:
1. COMP: Compensation for the error amplifier.
2. FB: Feedback input from the output.
3. CS: Current sense input.
4. RT/CT: Timing resistor and capacitor to set oscillator frequency.
5. SYNC: Synchronization input.
6. VREF: Reference voltage output.
7. AOUT: Channel A output.
8. GND: Ground.
9. VCC: Supply voltage input.
10. BOUT: Channel B output.
11. PGND: Power ground.
12. VCLK: Clock output for synchronization.
13. DTC: Dead time control.
14. RAMP: Ramp input for current-mode control.
15. SLOPE: Slope compensation input.
16. SD: Shutdown to disable outputs.
These pins collectively enable effective control of power supply outputs and provide necessary protection features, ensuring reliability and performance in power management applications.

Manufacturer

The UC28025DW is manufactured by Texas Instruments, an American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits, which are used in a wide array of electronic devices. The company serves a diverse set of industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. Texas Instruments is recognized for its innovation in analog and embedded processing products.

Application

The UC28025DW is a dual PWM controller primarily used in power electronics applications. Key application areas include:
1. Switching Power Supplies: Used in designing efficient DC-DC and AC-DC converters.
2. Telecommunications: Provides power management solutions for telecom systems.
3. Data Centers: Helps in managing power distribution and conversion within servers.
4. Industrial Equipment: Utilized in motor drives and industrial power supplies.
5. Consumer Electronics: Powers devices like televisions and audio systems.
6. Automotive: Supports power management in electric and hybrid vehicles.
Its high-frequency operation and dual output make it versatile for various high-efficiency, high-density power conversion applications.

Package

The UC28025DW is a dual in-line package (DIP) type IC, specifically featuring a 16-pin SOIC (Small Outline Integrated Circuit) package. This package type is designed for surface mounting on PCBs and is used for its compact size and reliability in various electronic applications, particularly in power supply control.

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