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UCC2805DTR
+NomenclatureIC REG CTRLR MULT TOPOLOGY 8SOIC
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FabricantTexas Instruments
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Pièce fabricant #UCC2805DTR
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En stock9826
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Spécifications
| Attribut | Valeur |
| Part Status | Active |
| Applications | PWM Controller |
| Voltage - Input | -0.3V ~ 6.3V |
| Voltage - Supply | 3.6V ~ 11V |
| Supply Current | 500 µA |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Base Product Number | UCC2805 |
Présentation
Description
Key features include a wide input voltage range, programmable output voltage, and robust protection mechanisms such as overvoltage, undervoltage, and overcurrent protection. The UCC2805DTR also incorporates a soft-start function to limit inrush current during power-up, ensuring smoother operation.
It supports peak current control and features a high-speed operational amplifier for accurate current sensing, facilitating precise control over the output. The device can operate in both linear and pulse-width modulation (PWM) modes, enabling flexibility in design.
Overall, the UCC2805DTR is suitable for applications requiring high efficiency, small size, and regulatory compliance in consumer electronics, industrial equipment, and renewable energy systems.
Equivalent
Features
1. Dual-Mode Operation: Supports both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) for enhanced efficiency.
2. Integrated Functions: Includes features like voltage regulation, current limiting, and soft-start capabilities.
3. High Efficiency: Designed for efficient performance in power conversion applications, minimizing energy loss.
4. Wide Input Voltage Range: Operates over a broad input voltage range, making it versatile for various applications.
5. Adjustable Frequency: Allows users to set the switching frequency, optimizing performance for specific design requirements.
6. Enhanced Protection: Incorporates over-voltage, under-voltage, and over-temperature protection mechanisms.
7. Compact Package: Available in a space-saving package, suitable for compact designs.
These features make the UCC2805DTR ideal for applications such as power supplies, DC-DC converters, and LED drivers.
Pinout
Here are the key pin functions:
1. VIN: Input voltage supply.
2. GND: Ground reference.
3. COMP: Compensation node for error amplifier.
4. CSN: Negative input for current sensing.
5. CSP: Positive input for current sensing.
6. SS: Soft-start function to control the ramp-up time of output voltage.
7. RAMP: Ramp generator input for controlling the switching frequency.
8. VREF: Reference voltage output.
9. ISNS: Current sense input.
10. SW: Switch node for the power stage.
11. BOOT: Bootstrap capacitor connection.
12. LIM: Current limit setting.
13. DVDD: Drive supply voltage.
14. SWITCH: Output for the synchronous switch.
15. EN: Enable input to activate the device.
16. CT: Timing capacitor connection for frequency setting.
These features facilitate the implementation of efficient power conversion topologies.
Manufacturer
Application
1. AC-DC Power Supplies: Enhances the efficiency and power factor of converters.
2. LED Drivers: Provides constant current control for LED lighting applications.
3. Industrial Equipment: Used in motor drives and industrial power supplies to ensure compliance with power regulations.
4. Consumer Electronics: Utilized in adapters and chargers for laptops and other devices to improve energy efficiency.
5. Renewable Energy Systems: Applied in solar inverters and battery chargers to optimize energy conversion.
Overall, it supports applications requiring high efficiency and low harmonic distortion.