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TL2844BDR-8
IC REG CTRLR BST FLYBK PWM 8SOIC
- Fabricant
- Mfr. Partie #TL2844BDR-8
- Paquet
- Fiche de données TL2844BDR-8 DataSheet
- En stock3250
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Spécifications
| Part Status | Active |
| Base Product Number | TL2844 |
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, Flyback, Forward |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 10V ~ 30V |
| Frequency - Switching | Up to 500kHz |
| Duty Cycle (Max) | 48% |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Vue d'ensemble
Description
Key features of the TL2844BDR-8 include its wide operating voltage range and low start-up current, which enhance its efficiency in power management applications. It typically operates at a fixed frequency, which helps in simplifying the design process and improving the predictability of performance in various applications.
The device is housed in an SOIC-8 package, which is a small outline integrated circuit with eight pins, making it compact and suitable for space-constrained applications. Common applications of the TL2844BDR-8 include use in switch-mode power supplies, battery chargers, and other power conversion systems. Its design incorporates robust protection features such as over-temperature and over-current protection, ensuring reliable operation in various conditions.
Features
1. Low Dropout Voltage: This allows the regulator to maintain a stable output voltage even with a minimum difference between input and output voltages.
2. Fixed Output Voltage: The regulator provides a precise and stable output voltage, facilitating consistent performance across applications.
3. Thermal Protection: Integrated thermal shutdown prevents overheating, enhancing reliability and safety.
4. Current Limiting: Protects the device from excessive current, ensuring longevity and stability in operation.
5. Surface-Mount Package: Available in the small-outline SOIC package, ideal for space-constrained applications.
6. Wide Input Voltage Range: This feature makes the TL2844BDR-8 versatile for use in various power supply configurations.
7. High Output Current Capability: Supports a robust output current, suitable for driving a range of loads.
These features make the TL2844BDR-8 a reliable choice for applications requiring efficient and stable voltage regulation.
Package
Pinout
1. Compensation (COMP): This pin is used for compensating the control loop of the power supply.
2. Voltage Feedback (VFB): It receives the voltage feedback from the output to regulate the power supply.
3. Current Sense (ISENSE): Monitors the current to protect against overcurrent conditions.
4. RT/CT (Timing Resistor/Capacitor): Sets the oscillator frequency with an external resistor and capacitor.
5. Ground (GND): The common ground reference for the device.
6. Output (OUT): Drives the gate of the external power MOSFET.
7. VCC (Supply Voltage): Powers the IC.
8. Voltage Reference (VREF): Provides a stable reference voltage for the PWM.
These pins work together to regulate the output voltage, sense current, and drive an external switching device, making the TL2844BDR-8 suitable for a variety of power supply applications.
Manufacturer
Application
Equivalent
1. UC3844: A widely used PWM controller with similar functions.
2. NCP1200: Offers similar operational characteristics and applications.
3. SG6848: Another PWM controller with comparable features.
4. LM2841: Although not a direct equivalent, it serves similar applications with integrated features.
5. MC33063: Offers similar functionality for DC-DC converter applications.
Always verify pin configurations and specifications as they may vary between manufacturers.
Expédition
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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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