Overview
The UCC2804DTR/81221 is a low-power BiCMOS current-mode PWM (Pulse Width Modulation) controller manufactured by Texas Instruments. This component is designed for use in offline switch-mode power supplies and is particularly suited for applications requiring high efficiency and reliability.
The UCC2804DTR/81221 features a compact 8-pin SOIC package, making it ideal for space-constrained designs. It operates over a wide temperature range and is compliant with RoHS standards, ensuring environmental sustainability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | 8-SOIC | - |
| Number of Pins | 8 | - |
| Control Mode | Current Mode | - |
| Switching Frequency | 1 MHz | - |
| Output Current | 1 A | - |
| Supply Voltage Min | 8.3 V | V |
| Supply Voltage Max | 12 V | V |
| Operating Temperature Range | -40°C to 85°C | °C |
| RoHS Compliance | Yes | - |
Key Features
- Low-power BiCMOS technology for high efficiency and low power consumption.
- Current-mode PWM control for precise output voltage regulation.
- Compact 8-pin SOIC package suitable for space-constrained designs.
- Wide operating temperature range from -40°C to 85°C.
- RoHS compliant, ensuring environmental sustainability.
- Under-voltage lockout (UVLO) with thresholds of 8.3V and 12.5V.
- 50% duty cycle limit for safe operation.
Applications
- Offline switch-mode power supplies.
- DC-DC converters.
- Power adapters and chargers.
- Automotive power systems.
- Industrial power supplies.
- Consumer electronics requiring efficient power management.
Q & A
- What is the UCC2804DTR/81221 used for?
The UCC2804DTR/81221 is used as a current-mode PWM controller in offline switch-mode power supplies and other power management applications.
- What is the package type of the UCC2804DTR/81221?
The UCC2804DTR/81221 comes in an 8-pin SOIC package.
- What is the switching frequency of the UCC2804DTR/81221?
The switching frequency of the UCC2804DTR/81221 is 1 MHz.
- What is the maximum output current of the UCC2804DTR/81221?
The maximum output current of the UCC2804DTR/81221 is 1 A.
- What is the operating temperature range of the UCC2804DTR/81221?
The operating temperature range of the UCC2804DTR/81221 is from -40°C to 85°C.
- Is the UCC2804DTR/81221 RoHS compliant?
Yes, the UCC2804DTR/81221 is RoHS compliant.
- What are the under-voltage lockout (UVLO) thresholds for the UCC2804DTR/81221?
The UVLO thresholds for the UCC2804DTR/81221 are 8.3V and 12.5V.
- What is the duty cycle limit of the UCC2804DTR/81221?
The duty cycle limit of the UCC2804DTR/81221 is 50%.
- In which applications is the UCC2804DTR/81221 commonly used?
The UCC2804DTR/81221 is commonly used in offline switch-mode power supplies, DC-DC converters, power adapters, automotive power systems, and industrial power supplies.
- Why is the UCC2804DTR/81221 preferred in power management applications?
The UCC2804DTR/81221 is preferred due to its high efficiency, low power consumption, and robust performance over a wide temperature range.
