Overview
The Texas Instruments UCC2813D-0G4 is a high-speed, low-power integrated circuit designed for use in DC-DC switching power supplies. This device is part of the UCC2813-x family, which includes all the control and drive components necessary for off-line and DC-to-DC fixed-frequency current-mode switching power supplies. It operates with a minimal parts count and is compatible with various package options, temperature ranges, and critical voltage levels. The UCC2813D-0G4 is particularly suited for applications requiring a flexible DC-DC converter, such as boost, flyback, and forward converter topologies.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC-8 | |
| Operating Temperature Range | -40°C to 85°C | °C |
| Starting Supply Current | 100 µA (typical) | µA |
| Operating Supply Current | 500 µA (typical) | µA |
| Maximum Operating Frequency | 1 MHz | Hz |
| Output Type | Transistor Driver | |
| Output Configuration | Positive | |
| Maximum Duty Cycle | 99% | % |
| Voltage Reference Tolerance | 1.5% | % |
| VCC Voltage | 6.9V to 12V | V |
| Output Current | ±1 A | A |
| Response Time from Current-Sense to Gate-Drive Output | 70 ns (typical) | ns |
Key Features
- Positive output step-up/step-down regulator
- Support for boost, flyback, and forward converter topologies
- Transistor driver output
- Frequency control capability
- Internal soft start and fault soft start
- Internal leading-edge blanking of the current-sense signal
- 1.5% tolerance voltage reference
- Same pinout as UCC3802, UC3842, and UC3842A device families
- Operating temperature range: -40°C to 85°C
- Surface-mount package: 8-SOIC
Applications
- Server power supplies
- Router and network equipment power supplies
- Communications equipment power supplies
- Other applications requiring a flexible DC-DC converter
Q & A
- What is the UCC2813D-0G4 used for?
The UCC2813D-0G4 is used as a DC-DC switching controller IC for off-line and DC-to-DC fixed-frequency current-mode switching power supplies.
- What are the supported topologies for the UCC2813D-0G4?
The device supports boost, flyback, and forward converter topologies.
- What is the operating temperature range of the UCC2813D-0G4?
The operating temperature range is from -40°C to 85°C.
- What is the typical starting supply current of the UCC2813D-0G4?
The typical starting supply current is 100 µA.
- What is the maximum operating frequency of the UCC2813D-0G4?
The maximum operating frequency is 1 MHz.
- Does the UCC2813D-0G4 have internal soft start and fault soft start features?
- What is the tolerance of the voltage reference in the UCC2813D-0G4?
The voltage reference has a 1.5% tolerance.
- What is the maximum duty cycle of the UCC2813D-0G4?
The maximum duty cycle is 99%.
- What type of output does the UCC2813D-0G4 have?
The output is a transistor driver output.
- Is the UCC2813D-0G4 still available for purchase?
No, the UCC2813D-0G4 is discontinued and no longer carried by some suppliers like Digi-Key.
