Overview
The UCC2801DTRG4 is a high-speed, low-power BiCMOS current-mode PWM (Pulse Width Modulation) controller produced by Texas Instruments. This device is part of the UCC280x family, which is designed to provide all the necessary control and drive components for off-line and DC-DC power supplies. The UCC2801DTRG4 is known for its high efficiency over a wide operating voltage range and its robust features for various power supply applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| VCC Voltage | - | - | 40 | V |
| Maximum Duty Cycle | - | 50% | - | % |
| Reference Voltage | 4.925 | 5 | 5.075 | V |
| Turn-On Threshold | 9.4 | - | - | V |
| Turn-Off Threshold | 7.4 | - | - | V |
| Operating Temperature Range | -40 | - | 85 | °C |
| Output Current (Low Level) | 0.1 | - | 0.4 | V |
| Rise Time (CL = 1 nF) | 41 | - | 70 | ns |
| Fall Time (CL = 1 nF) | 44 | - | 75 | ns |
| Start-Up Current (VCC < Start Threshold) | 0.1 | - | 0.2 | mA |
| Operating Supply Current (FB = 0 V, CS = 0 V) | 0.5 | - | 1 | mA |
Key Features
- High-speed, low-power BiCMOS current-mode PWM controller.
- Wide operating voltage range from 3.5V to 40V.
- High efficiency over the entire operation range.
- Low start-up current and operating supply current.
- Internal reference voltage of 5V with tight regulation.
- Current sense section with gain and overcurrent protection.
- Fast rise and fall times for the output signal.
- RoHS compliant and lead-free packaging.
Applications
- Off-line and DC-DC power supplies.
- Switch-mode power supplies requiring high efficiency and reliability.
- Industrial and commercial power systems.
- Aerospace and defense applications due to its enhanced product status.
- Medical devices requiring precise power management.
Q & A
- What is the operating voltage range of the UCC2801DTRG4?
The operating voltage range of the UCC2801DTRG4 is from 3.5V to 40V.
- What is the maximum duty cycle of the UCC2801DTRG4?
The maximum duty cycle of the UCC2801DTRG4 is 50%.
- What is the reference voltage of the UCC2801DTRG4?
The reference voltage of the UCC2801DTRG4 is typically 5V, with a range of 4.925V to 5.075V.
- What are the turn-on and turn-off thresholds for the UCC2801DTRG4?
The turn-on threshold is 9.4V, and the turn-off threshold is 7.4V.
- What is the operating temperature range of the UCC2801DTRG4?
The operating temperature range is from -40°C to 85°C.
- What is the typical start-up current for the UCC2801DTRG4?
The start-up current is typically 0.1 mA to 0.2 mA when VCC is below the start threshold.
- What is the operating supply current of the UCC2801DTRG4?
The operating supply current is typically 0.5 mA to 1 mA when FB = 0 V and CS = 0 V.
- Is the UCC2801DTRG4 RoHS compliant?
Yes, the UCC2801DTRG4 is RoHS compliant and lead-free.
- What are some common applications for the UCC2801DTRG4?
Common applications include off-line and DC-DC power supplies, industrial and commercial power systems, aerospace, and medical devices.
- What is the package type and pin count of the UCC2801DTRG4?
The UCC2801DTRG4 comes in an SOIC (D) package with 8 pins.
