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TL494IDR
IC REG CTRLR MULT TOP 16SOIC
- Fabricante
- Mfr. Parte #TL494IDR
- Paquete SOIC-16
- Hoja de datos
- En stock4636
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Especificaciones
| 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) | 7V ~ 40V |
| Frequency-Switching | 1kHz ~ 300kHz |
| DutyCycle(Max) | 45% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Dead Time Control, Frequency Control |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.154, 3.90mm Width) |
Descripción general
Description
Key features of the TL494IDR include dual error amplifiers, an on-chip oscillator, a dead-time control comparator, and a PWM latch for pulse-by-pulse current limiting. The device operates within a wide input voltage range, making it adaptable to different power environments. It utilizes a fixed-frequency, variable-duty-cycle setup, which is crucial for minimizing power losses and enhancing overall efficiency.
The TL494IDR comes in a standard SOIC-16 package, ensuring compatibility with various circuit designs. Its robust design and flexibility make it ideal for use in applications like DC-DC converters, inverters, and battery chargers. Additionally, the device helps simplify the design process of power electronics by integrating several control functions into a single IC, reducing the need for additional components.
Features
1. Dual Output Control: It offers dual output control, enabling push-pull or single-ended configurations.
2. Internal Oscillator: The IC features an internal oscillator with a frequency range from 1 kHz to 300 kHz, adjustable via external resistors and capacitors.
3. Error Amplifiers: Two error amplifiers allow for precise voltage regulation by comparing the feedback voltage with a reference.
4. Dead-time Control: Provides programmable dead-time control to prevent switch overlap and reduce power losses.
5. Under-voltage Lockout: Protects against low input voltage by shutting down the output.
6. Adjustable Duty Cycle: Capable of achieving a duty cycle from 0% to 100%.
7. Reference Voltage: Includes a stable 5V reference voltage for consistent performance.
8. Short-circuit Protection: Offers built-in protection features to enhance reliability.
These features make the TL494IDR a reliable choice for power conversion and regulation applications, ensuring efficiency and protection in various electronic systems.
Package
Pinout
1. GND: Ground reference.
2. C1: Timing capacitor connection for the oscillator.
3. R1: Timing resistor connection for the oscillator.
4. DTC: Dead-time control input, adjusts the minimum dead time.
5. C2: Output control, selects between single-ended and push-pull operation.
6. E1: Error amplifier 1 inverting input.
7. NC: No connection (for pin stability).
8. E1+: Error amplifier 1 non-inverting input.
9. E2: Error amplifier 2 inverting input.
10. E2+: Error amplifier 2 non-inverting input.
11. Vref: 5V reference voltage output.
12. C3: Collector of the output transistor.
13. E3: Emitter of the output transistor.
14. E4: Emitter of the second output transistor.
15. C4: Collector of the second output transistor.
16. VCC: Supply voltage input.
The TL494IDR is versatile and widely used for its ability to regulate voltage and control the duty cycle of power transistors in power supply applications.
Manufacturer
Application
Equivalent
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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