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UCC28220DR
+StücklisteIC REG CTRLR MULT TOP 16SOIC
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HerstellerTexas Instruments
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Herstellerteil #UCC28220DR
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Paket SOIC-16
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Auf Lager2358
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 | Flyback, Forward Converter |
| NumberofOutputs | 2 |
| OutputPhases | 1 |
| Voltage-Supply(Vcc/Vdd) | 8.4V ~ 14.5V |
| Frequency-Switching | 200kHz ~ 2MHz |
| DutyCycle(Max) | 75% |
| SynchronousRectifier | No |
| ClockSync | No |
| ControlFeatures | Ramp, Soft Start |
| OperatingTemperature | -40°C ~ 105°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.154, 3.90mm Width) |
Übersicht
Description
Key features of the UCC28220DR include soft-start control, under-voltage lockout protection, and adjustable switching frequency, which can be synchronized to an external clock. The controller operates with a maximum frequency of 1 MHz, providing flexibility for various applications, such as industrial, telecom, and server power supplies.
Its small package size and advanced features make the UCC28220DR an excellent choice for compact and high-density power supply designs. The device is widely used in applications requiring robust power management solutions with optimized performance and reliability.
Equivalent
1. LM5032 from Texas Instruments – Dual Interleaved PWM Controller.
2. LTC3722 from Analog Devices – Dual Interleaved Current Mode Controller.
3. NCP1271 from ON Semiconductor – PWM Controller.
4. ISL6752 from Renesas Electronics – Dual PWM Controller.
When considering alternatives, check compatibility with your specific application requirements such as voltage, current ratings, and package type.
Features
1. Interleaved PWM Control: Supports interleaved operation to reduce input and output ripple currents, improving overall efficiency.
2. Voltage Mode Control: Utilizes voltage mode control for accurate output voltage regulation.
3. Synchronization: Allows for synchronization with an external clock, enhancing flexibility in system designs.
4. Programmable Dead-Time Control: Offers adjustable dead-time to optimize efficiency and minimize switching losses.
5. Soft-Start Capability: Includes a programmable soft-start feature to limit inrush current during startup.
6. High-Frequency Operation: Capable of switching frequencies up to 1 MHz, supporting compact power supply designs.
7. Overcurrent Protection: Provides cycle-by-cycle current limiting to protect against overcurrent conditions.
8. Fault Protection: Includes features like undervoltage lockout (UVLO) and thermal shutdown for enhanced reliability.
9. Compact Package: Available in a small SOIC-16 package for space-constrained applications.
These features make the UCC28220DR suitable for various high-performance power supply designs requiring precise control and efficiency.
Pinout
1. VREF: Reference voltage output.
2. CS1 and CS2: Current sense inputs for each PWM channel.
3. RT: Timing resistor pin used to set the oscillator frequency.
4. CT: Timing capacitor pin to set oscillator frequency.
5. COMP: Compensation network connection for control loop stability.
6. FB: Feedback input for voltage regulation.
7. OUT1 and OUT2: PWM output pins for driving external MOSFETs.
8. SYNC: Synchronization input/output for multiple controller synchronization.
9. GND: Ground connection.
10. VDD: Supply voltage input.
11. ILIM: Current limit set point input.
12. SS: Soft start control input.
This pin arrangement allows the UCC28220DR to effectively manage dual interleaved power conversion while maintaining precise control over output regulation and efficiency.
Manufacturer
Application
1. DC/DC Converters: Used in telecommunications and server power supplies to improve efficiency and power density.
2. Distributed Power Systems: Facilitates the design of efficient power modules with reduced output ripple.
3. Point-of-Load (POL) Modules: Supports high-frequency, low-output voltage power supplies for processors and memory.
4. Industrial Power Supplies: Suitable for high-power industrial applications requiring precise control and reliability.
5. LED Drivers: Utilized in high-power LED driver systems for efficient power conversion.
Its features, such as programmable switching frequency and voltage-mode control, make it versatile for these applications.