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TL494CDR
IC REG CTRLR MULT TOP 16SOIC
- Fabricant
- Mfr. Partie #TL494CDR
- Paquet SOIC (D)-16
- Fiche de données
- En stock6801
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Spécifications
| 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 | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.154, 3.90mm Width) |
Vue d'ensemble
Description
Key features of the TL494CDR include dual error amplifiers for enhanced regulation flexibility, adjustable dead-time control to prevent output stage overlap, and a built-in 5V reference voltage. The device can operate over a wide range of frequencies and supports both single-ended and push-pull output configurations, making it suitable for various applications ranging from DC-DC converters to off-line power supplies.
The TL494CDR is typically housed in a small outline package, making it suitable for compact designs. Its reliability, simplicity, and cost-effectiveness make it a popular choice among engineers for designing efficient and stable power supply systems.
Features
1. PWM Control: Offers precise pulse-width modulation for efficient power management.
2. Dual Outputs: Provides two independent output control options, suitable for push-pull or single-ended configurations.
3. Voltage Reference: Integrates a stable 5V reference voltage for consistent operation.
4. Error Amplifiers: Includes two error amplifiers for flexibility in power supply design.
5. Adjustable Dead Time: Features adjustable dead-time control to prevent switch overlap.
6. Built-in Oscillator: Contains an internal oscillator with adjustable frequency, enhancing design flexibility.
7. Wide Supply Voltage Range: Operates across a broad supply voltage range, enhancing compatibility.
8. Low Standby Current: Optimized for low power consumption when in standby mode.
9. Temperature Stability: Designed for reliable performance across a wide temperature range.
10. Package Type: Available in SOIC (Small Outline Integrated Circuit) package for compact applications.
These features make the TL494CDR ideal for designing efficient and stable power supply systems in consumer electronics and industrial applications.
Package
Pinout
1. Pin 1 (Compensation): Connects to the feedback network for loop stability.
2. Pin 2 (Feedback): Receives the feedback voltage from the output.
3. Pin 3 (DTC - Dead Time Control): Sets the dead time between switching signals.
4. Pin 4 (C1 - Control Voltage): Used for on-chip oscillator frequency control.
5. Pin 5 (RT): Connects a timing resistor for oscillator frequency.
6. Pin 6 (CT): Connects a timing capacitor for oscillator frequency.
7. Pin 7 (RAMP): Provides the PWM ramp signal.
8. Pin 8 (GND): Ground reference.
9. Pin 9 (E1 - Collector Output): Open-collector output for the first driver stage.
10. Pin 10 (E2 - Emitter Output): Emitter output for the first driver stage.
11. Pin 11 (VC - Collector Output): Open-collector output for the second driver stage.
12. Pin 12 (VE - Emitter Output): Emitter output for the second driver stage.
13. Pin 13 (VCC): Supply voltage input.
14. Pin 14 (REF): Provides a 5V reference output.
15. Pin 15 (Shutdown): Used to disable the PWM outputs.
16. Pin 16 (NC - No Connect): Typically unused.
These pins collectively manage PWM operations for power supply regulation.
Manufacturer
Application
Equivalent
1. KA7500 by ON Semiconductor.
2. SG3524 by Texas Instruments.
3. SG3525 by Texas Instruments.
4. UC3842/UC3843 series by Texas Instruments or ON Semiconductor (although these have slight differences in features).
These alternatives may have different pin configurations or additional features, so always consult the datasheets to ensure compatibility with your application.
Expédition
Méthodes d'expéditionNous
offrir des services d'expédition mondiaux par DHL, FedEx, TNT, UPS ou tout autre expéditeur de votre choix.
Référence des frais d'expédition (DHL/FedEx):
DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.
FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.
UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.
TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.
EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.
Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.
Paiements
Payment Methods
Le terme de paiement est 100% prépayé.
Actuellement, nous n'acceptons que les méthodes de paiement ci-dessous:
1. PayPal
2. Carte de crédit/débit
3. Transfert bancaire
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