Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Up, Step-Down, Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull |
| NumberofOutputs | 2 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 8V ~ 35V |
| Frequency-Switching | 100Hz ~ 400kHz |
| DutyCycle(Max) | 49% |
| SynchronousRectifier | Yes |
| ClockSync | Yes |
| ControlFeatures | Enable, Frequency Control, Soft Start |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.295, 7.50mm Width) |
Tổng quan
Description
The UC3525ADWTR is a high-performance pulse width modulation (PWM) controller IC designed for efficient power supply management. It is commonly used in DC-DC converters, switched-mode power supplies, and other power electronics applications. The device offers a range of features including an on-chip 5.1V voltage regulator, adjustable oscillator frequency, and precise duty cycle control, which enhance the regulation and efficiency of power supply systems.
Key specifications include a wide supply voltage range, low standby current, and high output drive capability. The device also integrates fault protection features such as overcurrent protection and undervoltage lockout, ensuring reliable operation in various conditions. The UC3525ADWTR is packaged in a surface-mount design, making it suitable for compact electronic applications.
Overall, the UC3525ADWTR is valued for its robust performance, versatility, and reliability in managing PWM-based power systems, making it a popular choice among engineers and designers working on complex power management solutions.
Key specifications include a wide supply voltage range, low standby current, and high output drive capability. The device also integrates fault protection features such as overcurrent protection and undervoltage lockout, ensuring reliable operation in various conditions. The UC3525ADWTR is packaged in a surface-mount design, making it suitable for compact electronic applications.
Overall, the UC3525ADWTR is valued for its robust performance, versatility, and reliability in managing PWM-based power systems, making it a popular choice among engineers and designers working on complex power management solutions.
Equivalent
The UC3525ADWTR is a PWM controller used primarily in DC-DC converters and switching power supplies. Equivalent products include:
1. SG3525A
2. TL494
3. KA3525A
4. MC3525
5. FAN7527
These alternatives have similar functionalities and can often be used interchangeably in typical applications, although slight differences in specifications may exist. Always verify pin compatibility and electrical characteristics before substitution.
1. SG3525A
2. TL494
3. KA3525A
4. MC3525
5. FAN7527
These alternatives have similar functionalities and can often be used interchangeably in typical applications, although slight differences in specifications may exist. Always verify pin compatibility and electrical characteristics before substitution.
Features
The UC3525ADWTR is a PWM controller designed for efficient power supply management. Key features include:
1. PWM Control: The device offers pulse-width modulation control for precise power regulation.
2. Wide Operating Voltage: It supports a wide input voltage range, enhancing flexibility in various applications.
3. Current Limiting: Built-in current limiting provides protection against over-current conditions.
4. Soft Start Capability: The soft start feature helps in reducing inrush current during startup.
5. Synchronization: It can be synchronized with external clock sources for more complex power management systems.
6. On-Chip Oscillator: An on-chip oscillator allows for easy frequency setting and system integration.
7. Error Amplifier: Features an error amplifier for feedback and regulation accuracy.
8. Shutdown Capability: Includes a shutdown feature to reduce power consumption when not in use.
This component is typically used in switch-mode power supplies, DC-DC converters, and other power management applications where efficiency and control are crucial. Its robust feature set supports reliable and stable power conversion.
1. PWM Control: The device offers pulse-width modulation control for precise power regulation.
2. Wide Operating Voltage: It supports a wide input voltage range, enhancing flexibility in various applications.
3. Current Limiting: Built-in current limiting provides protection against over-current conditions.
4. Soft Start Capability: The soft start feature helps in reducing inrush current during startup.
5. Synchronization: It can be synchronized with external clock sources for more complex power management systems.
6. On-Chip Oscillator: An on-chip oscillator allows for easy frequency setting and system integration.
7. Error Amplifier: Features an error amplifier for feedback and regulation accuracy.
8. Shutdown Capability: Includes a shutdown feature to reduce power consumption when not in use.
This component is typically used in switch-mode power supplies, DC-DC converters, and other power management applications where efficiency and control are crucial. Its robust feature set supports reliable and stable power conversion.
Pinout
The UC3525ADWTR is a pulse width modulation (PWM) controller integrated circuit commonly used for power supply and motor control applications. The device typically comes in a 16-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. Compensation (COMP): Error amplifier output for loop compensation.
2. Voltage Feedback (VFB): Inverting input of the error amplifier.
3. Current Sense (CS): Non-inverting input to the current limit comparator.
4. RT/CT (Timing Resistor/Capacitor): Sets the oscillator frequency.
5. Soft Start (SS): Controls the soft-start interval.
6. Shutdown (SHDN): Resets the PWM latch for shutdown.
7. Ground (GND): Ground reference point for the IC.
8. Emitter A (EA): Output of the A-side output transistor.
9. Collector A (CA): Collector of the A-side output transistor.
10. VCC: Positive supply voltage for the IC.
11. Emitter B (EB): Output of the B-side output transistor.
12. Collector B (CB): Collector of the B-side output transistor.
13. Reference Voltage (VREF): Provides a 5V reference output.
14. Oscillator (OSC): Oscillator output.
15. Discharge (DISCH): Discharge pin for the timing capacitor.
16. Sync (SYNC): Synchronization input for the oscillator.
These pin functions support various control and feedback mechanisms required for efficient PWM operation.
1. Compensation (COMP): Error amplifier output for loop compensation.
2. Voltage Feedback (VFB): Inverting input of the error amplifier.
3. Current Sense (CS): Non-inverting input to the current limit comparator.
4. RT/CT (Timing Resistor/Capacitor): Sets the oscillator frequency.
5. Soft Start (SS): Controls the soft-start interval.
6. Shutdown (SHDN): Resets the PWM latch for shutdown.
7. Ground (GND): Ground reference point for the IC.
8. Emitter A (EA): Output of the A-side output transistor.
9. Collector A (CA): Collector of the A-side output transistor.
10. VCC: Positive supply voltage for the IC.
11. Emitter B (EB): Output of the B-side output transistor.
12. Collector B (CB): Collector of the B-side output transistor.
13. Reference Voltage (VREF): Provides a 5V reference output.
14. Oscillator (OSC): Oscillator output.
15. Discharge (DISCH): Discharge pin for the timing capacitor.
16. Sync (SYNC): Synchronization input for the oscillator.
These pin functions support various control and feedback mechanisms required for efficient PWM operation.
Manufacturer
The UC3525ADWTR is manufactured by Texas Instruments. Texas Instruments (TI) is a global technology company known for designing and manufacturing semiconductors and various integrated circuits. It is one of the largest semiconductor companies in the world and plays a crucial role in the electronics industry. TI's products are used in a broad range of applications, including consumer electronics, automotive systems, communication devices, industrial automation, and more. The company is headquartered in Dallas, Texas, and is recognized for its innovation, reliability, and focus on providing products that enable technological advancements across different sectors.
Application
The UC3525ADWTR is a pulse width modulation (PWM) controller used primarily in power supply applications. Its main application areas include switch-mode power supplies (SMPS), DC-DC converters, and motor control circuits. It is commonly employed in both consumer electronics and industrial applications due to its ability to efficiently manage power conversion with high precision. Additionally, the UC3525ADWTR is suitable for use in battery chargers and uninterruptible power supplies (UPS) where regulated output voltage and current are essential. Its robust design and versatility make it ideal for applications requiring reliable and efficient power management.
Package
The UC3525ADWTR is a pulse width modulation (PWM) controller, and it comes in a surface-mount package type known as SOIC-16 (Small Outline Integrated Circuit with 16 pins).
