Overview
The UCC2813DTR-2 is a high-speed, low-power integrated circuit from Texas Instruments, designed for use in off-line and DC-to-DC fixed-frequency current-mode switching power supplies. This device is part of the UCC2813-x series, which offers a range of features and options to suit various power supply applications. The UCC2813DTR-2 operates within a temperature range of -40°C to 85°C and is packaged in an 8-pin SOIC (D) package. It is compatible with the pin configuration of the UC384x device family and includes additional features such as internal full-cycle soft start and internal leading-edge blanking of the current-sense input.
Key Specifications
| Category | Integrated Circuits (ICs) - PMIC - DC DC Switching Controllers |
|---|---|
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, Flyback, Forward Converter |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 6.9V ~ 12V |
| Frequency - Switching | Up to 1 MHz |
| Duty Cycle (Max) | 100% |
| Synchronous Rectifier | No |
| Clock Sync | No |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package/Case | SOIC (D) 8-Pin |
Key Features
- 100-µA typical starting supply current
- 500-µA typical operating supply current
- Operation to 1 MHz
- Internal soft start
- Internal fault soft start
- Internal leading-edge blanking of the current-sense signal
- 1-A totem-pole output
- 70-ns typical response from current-sense to gate-drive output
- 1.5% Tolerance Voltage Reference
- Same Pinout as the UCC3802, UC3842, and UC3842A device families
Applications
- Switch mode power supplies (SMPS)
- DC-DC converters
- Power modules
- Industrial PSUs
- Battery operated PSUs
Q & A
- What is the operating temperature range of the UCC2813DTR-2?
The UCC2813DTR-2 operates within a temperature range of -40°C to 85°C.
- What is the typical starting supply current of the UCC2813DTR-2?
The typical starting supply current is 100 µA.
- What is the maximum duty cycle of the UCC2813DTR-2?
The maximum duty cycle is 100%.
- What is the output configuration of the UCC2813DTR-2?
The output configuration is positive.
- Does the UCC2813DTR-2 support synchronous rectification?
No, it does not support synchronous rectification.
- What is the package type of the UCC2813DTR-2?
The package type is SOIC (D) with 8 pins.
- What are the key features of the UCC2813DTR-2?
Key features include internal soft start, internal fault soft start, internal leading-edge blanking of the current-sense signal, and a 1-A totem-pole output.
- What is the typical response time from current-sense to gate-drive output?
The typical response time is 70 ns.
- What is the tolerance of the voltage reference in the UCC2813DTR-2?
The voltage reference has a 1.5% tolerance.
- What are some common applications of the UCC2813DTR-2?
Common applications include switch mode power supplies, DC-DC converters, power modules, industrial PSUs, and battery operated PSUs.
