Abbildungen dienen nur als Referenz
UCC2808DTR-2
+StücklisteIC REG CTRLR PUSH-PULL 8SOIC
-
HerstellerTexas Instruments
-
Herstellerteil #UCC2808DTR-2
-
Paket 8-SOIC
-
Auf Lager7065
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| OutputType | Transistor Driver |
| Function | Step-Up/Step-Down |
| OutputConfiguration | Positive |
| Topology | Push-Pull |
| NumberofOutputs | 2 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 4.1V ~ 15V |
| Frequency-Switching | 194kHz |
| DutyCycle(Max) | 49% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Frequency Control |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Übersicht
Description
Key features include current-mode control for improved transient response, pulse-by-pulse current limiting, and under-voltage lockout for reliable operation. The UCC2808DTR-2 is typically used in applications requiring isolated power supplies, such as telecommunications, networking equipment, and industrial control systems.
The device is available in a small outline (SOIC) package, making it suitable for space-constrained applications. Its robust design and flexibility enable engineers to efficiently design power supplies with enhanced performance and reliability. For more detailed specifications, reference the datasheet provided by Texas Instruments.
Equivalent
1. UCC2808A-2: Slightly different version with similar functionality.
2. UC3823: Another Texas Instruments PWM controller with similar specs.
3. NCP1200: From ON Semiconductor, suitable for similar applications.
4. SG3525A: A widely used PWM controller from multiple manufacturers.
Ensure to match specifications like input voltage, frequency, and package type when considering alternatives.
Features
1. Low Start-Up Current: It requires minimal start-up current, enhancing efficiency and reducing power consumption in standby mode.
2. Wide Supply Voltage Range: Capable of operating over a broad voltage range, facilitating versatility in various applications.
3. Fixed Frequency Operation: Operates at a fixed frequency, providing consistent performance and simplifying design requirements.
4. Precision Voltage Reference: Ensures accurate output voltage regulation, crucial for applications demanding tight voltage tolerances.
5. Programmable Oscillator: Allows frequency setting by external components, offering flexibility in application design.
6. Current Mode Control: Provides inherent cycle-by-cycle current limiting, improving transient response and simplifying feedback loop design.
7. Undervoltage Lockout (UVLO): Protects the system by shutting down the controller when the voltage is below a specified threshold.
8. Soft Start Capability: Introduces gradual power application during startup to prevent inrush current and stress on components.
These features make the UCC2808DTR-2 ideal for efficient, reliable, and flexible power supply designs.
Pinout
1. VREF: Reference Voltage Output, typically 5V.
2. COMP: Error Amplifier Output for loop compensation.
3. CS: Current Sense input for current-mode control.
4. RT/CT: Timing Resistor and Capacitor connection to set the oscillator frequency.
5. GND: Ground reference for the device.
6. OUTA: Output A, drive for the first external power switch.
7. VDD: Supply voltage input for the IC.
8. OUTB: Output B, drive for the second external power switch.
This IC is commonly used in power supply designs due to its efficiency and ability to handle various power levels, contributing to optimized performance in applications requiring precise voltage regulation and efficient power conversion.
Manufacturer
Application
1. AC/DC adapters
2. Battery chargers
3. Distributed power systems
4. Industrial power supplies
5. Consumer electronics
6. Telecommunications equipment
Its compact design, integrated features, and efficiency make it ideal for applications requiring precise power regulation and high efficiency in space-constrained environments.