Las imágenes son solo para referencia
TL494CN
IC REG CTRLR BCK/PUSH-PULL 16DIP
- Fabricante
- Mfr. Parte #TL494CN
- Paquete PDIP (N)-16
- Hoja de datos
- En stock2811
100% original & Nuevo
24 horas listos para el envío
Garantía de 365 días
RFQ y Obtenga más descuentos
Especificaciones
| Package | Tube,Tube |
| Series | SWITCHMODE™ |
| ProductStatus | Obsolete |
| OutputType | Transistor Driver |
| Function | Step-Down, Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck, Push-Pull |
| NumberofOutputs | 2 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 7V ~ 40V |
| Frequency-Switching | 200kHz |
| DutyCycle(Max) | 48% |
| SynchronousRectifier | Yes |
| ClockSync | No |
| ControlFeatures | Dead Time Control, Frequency Control |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Through Hole |
| Package/Case | 16-DIP (0.300, 7.62mm) |
Descripción general
Description
Key features of the TL494CN include dual error amplifiers, an adjustable dead-time control comparator, on-chip oscillator, a 5V precision reference voltage, and output control circuitry. These features enable the IC to maintain stable and efficient power regulation. The dual error amplifiers allow for easier feedback control, enhancing accuracy and reliability in various applications.
The TL494CN supports both voltage and current mode control, providing flexibility in design. Its adjustable dead-time control helps prevent power transistors from overlapping, thus reducing shoot-through and improving efficiency. The IC operates within a wide voltage range and can deliver output currents up to 200 mA.
Overall, the TL494CN is favored for its cost-effectiveness, reliability, and ability to simplify power management in electronic devices.
Features
1. PWM Control: It supports single-ended or push-pull configurations, making it suitable for various power supply designs.
2. Built-in Oscillator: Operates from a single resistor and capacitor, providing flexibility in setting the frequency.
3. Error Amplifiers: Two error amplifiers are integrated for precise voltage regulation and feedback control.
4. Dead-Time Control: Provides adjustable dead-time to prevent overlap in switching, enhancing efficiency and safety.
5. On-Chip Reference: A stable 5V reference voltage is provided for consistent operation and accuracy.
6. Output Transistors: Includes two transistor outputs that can be configured for different switching applications.
7. Undervoltage Lockout: Ensures proper operation by preventing the circuit from starting until it reaches the correct voltage.
8. Wide Supply Voltage Range: Operates effectively between 7V to 40V, accommodating various input conditions.
The TL494CN is widely used in applications requiring reliable and adjustable PWM control, such as switching power supplies, battery chargers, and motor speed controllers.
Package
Pinout
Here is a brief overview of its pin functions:
1. Compensation (Pin 1): Used for error amplifier compensation.
2. Feedback (Pin 2): Input for feedback voltage.
3. Dead-Time Control (Pin 3): Sets the dead-time of the output.
4. C1 (Pin 4): Timing capacitor for oscillator frequency.
5. R1 (Pin 5): Timing resistor for oscillator frequency.
6. C2 (Pin 6): Additional capacitor for oscillator frequency.
7. GND (Pin 7): Ground connection.
8. C3 (Pin 8): Sets the frequency of the oscillator.
9. VCC (Pin 12): Supply voltage.
10. Output Control (Pin 13): Determines the output configuration.
11. Collector Output A (Pin 10) & Emitter Output A (Pin 9): Transistor A outputs.
12. Collector Output B (Pin 11) & Emitter Output B (Pin 8): Transistor B outputs.
13. VREF (Pin 14): Reference voltage output.
14. Error Amplifier Inverting Input (Pin 15) & Non-Inverting Input (Pin 16): Inputs for the error amplifier.
This setup enables the TL494CN to control the duty cycle and regulate power supply outputs efficiently.
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
Similar
-
MX25L3233FZBI-08Q
Macronix
-
MX25V1635FZNQ03
Macronix
-
MX29F400CBTI-70G
Macronix
-
MX66U1G45GXDI00
Macronix
-
MX25R3235FZNIL0
Macronix
-
MX29GL512FHXFI-11..
Macronix
-
MX25U51279GXDR00
Macronix
-
MX25U25643GZNI00
Macronix
-
MX25L2006EM1I-12G
Macronix
-
MX25L12833FM2I-10..
Macronix
-
MX25L12833FZ2I-10..
Macronix
-
MX25U25645GXDI00
Macronix