Overview
The UC2844AD8TR/81541 is a current-mode PWM controller manufactured by Texas Instruments. This integrated circuit is designed for use in various power supply applications, including buck, boost, flyback, and forward converters. It is part of the UC2844 family, known for its versatility and reliability in switching power supplies.
This component is packaged in an 8-SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for surface mount technology. The UC2844AD8TR/81541 operates over a wide temperature range from -40°C to 85°C, making it suitable for a variety of environmental conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Topology | Boost, Buck, Flyback, Forward |
| Voltage - Start Up | 16V |
| Voltage - Supply (Vcc/Vdd) | 10 V ~ 30 V |
| Duty Cycle | 50% |
| Frequency - Switching | Up to 500kHz |
| Fault Protection | Current Limiting |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Key Features
- Current-Mode Operation: The UC2844AD8TR/81541 operates in current-mode, providing precise control over the output current.
- High Switching Frequency: It supports switching frequencies up to 500kHz, allowing for efficient and compact power supply designs.
- Wide Operating Temperature Range: The component is designed to operate from -40°C to 85°C, making it suitable for various environmental conditions.
- Multiple Topologies Support: It can be used in buck, boost, flyback, and forward converter configurations, offering flexibility in design.
- Fault Protection: Features current limiting to protect against overcurrent conditions.
- Compact Package: The 8-SOIC package is compact and ideal for surface mount applications.
Applications
- Switching Power Supplies: Ideal for use in DC-DC converters, AC-DC converters, and other switching power supply applications.
- Industrial Power Systems: Suitable for industrial power supplies, motor control systems, and other high-reliability applications.
- Consumer Electronics: Can be used in various consumer electronics such as power adapters, battery chargers, and other portable devices.
- Automotive Systems: Applicable in automotive power systems due to its wide operating temperature range and robust design.
Q & A
- What is the package type of the UC2844AD8TR/81541?
The UC2844AD8TR/81541 is packaged in an 8-SOIC (Small Outline Integrated Circuit) package.
- What are the supported topologies for this PWM controller?
The UC2844AD8TR/81541 supports buck, boost, flyback, and forward converter topologies.
- What is the maximum switching frequency of the UC2844AD8TR/81541?
The maximum switching frequency is up to 500kHz.
- What is the operating temperature range of the UC2844AD8TR/81541?
The operating temperature range is from -40°C to 85°C.
- Does the UC2844AD8TR/81541 have built-in fault protection?
- What is the typical application of the UC2844AD8TR/81541?
- Is the UC2844AD8TR/81541 RoHS compliant?
- What is the duty cycle of the UC2844AD8TR/81541?
- What is the voltage supply range for the UC2844AD8TR/81541?
- How do I obtain the datasheet for the UC2844AD8TR/81541?
