Overview
The UCC28600DRG4, produced by Texas Instruments, is an 8-pin quasi-resonant Flyback green mode controller designed to meet stringent worldwide energy efficiency requirements. This PWM controller integrates advanced energy-saving features along with high-level protection features, making it a cost-effective solution for energy-efficient power supplies. The UCC28600DRG4 operates in quasi-resonant mode and incorporates frequency fold-back and green-mode operation to reduce switching losses at light-load and no-load conditions.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| VDD Input Voltage | - | - | 21 | V |
| Operating Junction Temperature | -40 | - | 105 | °C |
| Startup Current | - | - | 25 μA | - |
| Switching Frequency | - | - | 130 kHz | - |
| Package Type | - | - | 8-pin SOIC (D) | - |
| Gate Drive Output | - | - | 1-A Sink, -0.75-A Source TrueDrive™ | - |
Key Features
- Advanced energy-saving features to meet worldwide energy efficiency requirements.
- Quasi-resonant mode operation for reduced EMI and low switching losses.
- Frequency fold-back and green-mode operation to reduce switching losses at light-load and no-load conditions.
- Low startup current: 25 μA maximum.
- Low standby current for minimum system no-load power consumption.
- Programmable overvoltage protection for line and load.
- Internal overtemperature protection.
- Current limit protection and cycle-by-cycle power limit.
- Primary-side overcurrent hiccup restart mode.
- Programmable soft-start and green-mode status pin (PFC disable function).
Applications
- Bias supplies for LCD monitors, LCD TVs, PDP TVs, and set-top boxes.
- AC-to-DC adapters and off-line battery chargers.
- Energy-efficient power supplies up to 200 W.
Q & A
- What is the UCC28600DRG4?
The UCC28600DRG4 is an 8-pin quasi-resonant Flyback green mode controller produced by Texas Instruments.
- What are the key energy-saving features of the UCC28600DRG4?
The UCC28600DRG4 includes quasi-resonant mode operation, frequency fold-back, and green-mode operation to reduce switching losses.
- What is the operating junction temperature range of the UCC28600DRG4?
The operating junction temperature range is –40°C to +105°C.
- What is the maximum startup current of the UCC28600DRG4?
The maximum startup current is 25 μA.
- Does the UCC28600DRG4 have overvoltage protection?
Yes, it has programmable overvoltage protection for line and load.
- What type of package is the UCC28600DRG4 available in?
The UCC28600DRG4 is available in an 8-pin SOIC (D) package.
- What are some typical applications of the UCC28600DRG4?
Typical applications include bias supplies for LCD monitors, AC-to-DC adapters, and energy-efficient power supplies up to 200 W.
- Does the UCC28600DRG4 have internal overtemperature protection?
Yes, it includes internal overtemperature protection.
- What is the gate drive output capability of the UCC28600DRG4?
The gate drive output is 1-A sink, -0.75-A source TrueDrive™.
- Is there a design calculator available for the UCC28600DRG4?
Yes, the UCC28600 Design Calculator (SLVC104) is available for selecting recommended component values for an optimal design.
