Overview
The UCC2813DTR-2G4 is a low-power economy BiCMOS current-mode PWM (Pulse Width Modulation) controller produced by Texas Instruments. This device is part of the UCC2813-x family, which is designed for use in off-line and DC-to-DC fixed-frequency current-mode switching power supplies. It offers a high level of integration, including all the necessary control and drive components, thereby minimizing the external parts count. The UCC2813DTR-2G4 operates over a wide temperature range from -40°C to 85°C and is available in an 8-pin SOIC (D) package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | SOIC (D) | - |
| Pins | 8 | - |
| Starting Supply Current | 100 µA (typical) | - |
| Operating Supply Current | 500 µA (typical) | - |
| Maximum Operating Frequency | 1 MHz | - |
| Output Voltage Tolerance | 1.5% | - |
| UVLO (Under-Voltage Lockout) | 12.5V/8.3V | - |
| Output Current | ±1 A | - |
| Response Time from Current-Sense to Gate-Drive Output | 70 ns (typical) | - |
Key Features
- Internal soft start and 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
- Low power consumption with 100-µA typical starting supply current and 500-µA typical operating supply current
Applications
The UCC2813DTR-2G4 is ideal for use in off-line and DC-to-DC fixed-frequency current-mode switching power supplies. It is particularly suited for applications requiring high efficiency and reliability, such as in power supplies for consumer electronics, industrial equipment, and battery-operated systems. The device's wide operating temperature range and robust features make it a versatile choice for various power management needs.
Q & A
- What is the operating temperature range of the UCC2813DTR-2G4?
The operating temperature range is from -40°C to 85°C. - What is the package type and pin count of the UCC2813DTR-2G4?
The package type is SOIC (D) with 8 pins. - What is the typical starting supply current of the UCC2813DTR-2G4?
The typical starting supply current is 100 µA. - What is the maximum operating frequency of the UCC2813DTR-2G4?
The maximum operating frequency is 1 MHz. - Does the UCC2813DTR-2G4 have internal soft start and fault soft start features?
Yes, it does have internal soft start and internal fault soft start features. - What is the tolerance of the voltage reference in the UCC2813DTR-2G4?
The voltage reference has a tolerance of 1.5%. - What is the UVLO (Under-Voltage Lockout) voltage for the UCC2813DTR-2G4?
The UVLO voltage is 12.5V/8.3V. - What is the response time from current-sense to gate-drive output in the UCC2813DTR-2G4?
The response time is typically 70 ns. - Is the UCC2813DTR-2G4 compatible with other device families?
Yes, it has the same pinout as the UCC3802, UC3842, and UC3842A device families. - What are some typical applications for the UCC2813DTR-2G4?
It is typically used in off-line and DC-to-DC fixed-frequency current-mode switching power supplies, consumer electronics, industrial equipment, and battery-operated systems.
