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UC3825ADW
IC REG CTRLR MULT TOP 16SOIC
- Fabricante
- Mfr. Parte #UC3825ADW
- Paquete SOIC-16
- Hoja de datos UC3825ADW DataSheet
- En stock2292
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Especificaciones
| Package | 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 ~ 22V |
| Frequency-Switching | 400kHz ~ 1MHz |
| DutyCycle(Max) | 50% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Current Limit, Frequency Control, Ramp, Soft Start |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.295, 7.50mm Width) |
Descripción general
Description
Key features include dual output drives capable of sourcing or sinking high peak currents, which are suitable for driving power MOSFETs or IGBTs. It also offers programmable dead-time, soft-start capability, and under-voltage lockout for reliable start-up. The high-speed oscillator can be programmed for frequency modulation and synchronization, providing flexibility in design.
With its robust construction and high-speed performance, the UC3825ADW is commonly used in applications such as DC-DC converters, inverters, and offline switching power supplies. It is packaged in a surface-mount package, which facilitates compact circuit designs. The device is widely appreciated for its efficiency, reliability, and ability to handle power-intensive operations effectively.
Features
1. High-Frequency Operation: It supports up to 1 MHz, allowing for smaller and lighter power supply designs.
2. Precision Voltage Reference: It offers a 5V reference with a tight tolerance, ensuring accuracy and stability in power supply outputs.
3. Variable Duty Cycle: The controller provides a wide range of duty cycles, enhancing flexibility and efficiency in power conversion.
4. Push-Pull, Single-Ended, and Bridge Configuration: Its versatile design supports multiple topologies, making it suitable for a broad range of applications.
5. Programmable Dead Time: This feature allows adjustment of the dead time to optimize performance and reduce switching losses.
6. Soft-Start Capability: It includes a programmable soft-start function to prevent inrush current and enhance reliability.
7. Over-Current Protection: Built-in protection against over-current conditions helps safeguard the system.
8. Undervoltage Lockout: Ensures the controller operates only when the supply voltage is within the specified range, protecting against under-voltage conditions.
These features make the UC3825ADW ideal for applications requiring precise control and high efficiency in power management.
Package
Pinout
1. Compensation (COMP): Error amplifier output for loop compensation.
2. Voltage Feedback (VFB): Inverting input to the error amplifier.
3. Current Sense (CS): Non-inverting input for current limiting.
4. RT/CT: Timing resistor and capacitor for setting oscillator frequency.
5. Dead Time Control (DTC): Adjusts dead time between outputs.
6. Soft Start (SS): Controls the soft-start period.
7. Shutdown (SD): Input to shutdown the PWM outputs.
8. Ground (GND): Circuit ground.
9. Output A (OUTA): PWM output A.
10. Output B (OUTB): PWM output B.
11. VCC: Supply voltage for the device.
12. VREF: Reference voltage output.
13. Ramp: Oscillator's ramp voltage.
14. Sync: Synchronize the oscillator.
15. VDD: Power supply input.
16. Error Amp Output (EAO): Used for feedback loop.
These pins and their functions are designed to configure and operate the PWM controller effectively.
Manufacturer
Application
Equivalent
1. UC3825A from Texas Instruments
2. TL494 from Texas Instruments
3. SG3525A from ON Semiconductor
4. LM3524D from Texas Instruments
5. KA3525A from Fairchild Semiconductor
These devices offer similar functionalities, but you should verify specific features and pin compatibility for your application.
Envío
Métodos de envíoNosotros
ofrecer servicios de envío globales a través de DHL, FedEx, TNT, UPS, o cualquier otro expediente de su elección.
Referencia de tarifas de envío (DHL/FedEx):
DHL: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 2-5 días hábiles.
FedEx: El costo de envío oscila entre $25-$40 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
UPS: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
TNT: El costo de envío oscila entre $25-$65 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
EMS: El costo de envío oscila entre $30-$50 (0.5kg), con un plazo de entrega estimado de 7-15 días hábiles.
Correo aéreo registrado: El costo de envío es de $2-$4 (0.1kg), con un tiempo de entrega estimado de 5-20 días hábiles.
Pagos
Payment Methods
El plazo de pago es 100% prepagado.
Actualmente, solo aceptamos los siguientes métodos de pago:
1. de PayPal
2. Tarjeta de crédito/débito
3. Transferencia bancaria
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