Overview
The UCC24612-2DBVR is a high-performance synchronous rectifier controller and driver manufactured by Texas Instruments. It is designed to enhance efficiency in power conversion systems by reducing output rectifier losses and indirectly minimizing primary-side losses. This model is particularly suited for applications requiring high-frequency operation and robust performance in various power supply topologies. Its market positioning targets advanced power management solutions, making it ideal for industrial, automotive, and consumer electronics applications. The UCC24612-2DBVR stands out for its ability to operate at frequencies up to 800kHz, its wide VDD range, and its adaptive features that improve noise immunity and efficiency.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Function | Synchronous Rectifier Controller | - | - |
| Topology | Active Clamp Flyback, QR, DCM, CCM Flyback, LLC | - | - |
| Maximum Frequency | 800kHz | Hz | UCC24612-2 variant |
| VDD Range | 5V to 28V | V | - |
| Gate Drive Current | 4A Sink, 1A Source | A | Proportional gate driver |
| Standby Current | 320μA | A | - |
| Propagation Delay | 16ns | s | Typical |
| Package | SOT23-5 | - | - |
Key Features
- Supports multiple power supply topologies including Active Clamp Flyback, QR, DCM, CCM Flyback, and LLC.
- Operates at frequencies up to 800kHz, making it suitable for high-frequency applications.
- Wide VDD range from 5V to 28V allows direct biasing from various output systems.
- Adaptive features such as cycle-by-cycle pre-turn-off enhance efficiency and noise immunity.
- Low standby current of 320μA ensures energy efficiency in standby or light-load conditions.
Applications
The UCC24612-2DBVR is widely used in power conversion systems across various industries. In industrial applications, it is employed in high-efficiency power supplies and motor drives. In automotive electronics, it is utilized in onboard chargers and DC-DC converters. Consumer electronics, such as adapters and LED drivers, also benefit from its high efficiency and compact design. Its ability to operate in multiple topologies and its robust performance make it a versatile choice for modern power management solutions.
Q & A
1. What is the primary function of the UCC24612-2DBVR?
The UCC24612-2DBVR is a synchronous rectifier controller designed to reduce output rectifier losses and improve efficiency in power conversion systems.
2. What topologies does the UCC24612-2DBVR support?
It supports Active Clamp Flyback, QR, DCM, CCM Flyback, and LLC topologies.
3. What is the maximum operating frequency of the UCC24612-2DBVR?
It operates at frequencies up to 800kHz.
4. What is the VDD range for this component?
The VDD range is from 5V to 28V.
5. What is the gate drive current capability?
It provides 4A sink and 1A source gate drive current.
6. What is the standby current of the UCC24612-2DBVR?
The standby current is 320μA.
7. What is the typical propagation delay?
The typical propagation delay is 16ns.
8. What package does the UCC24612-2DBVR come in?
It is available in an SOT23-5 package.
9. What are the key features that enhance efficiency?
Features such as adaptive cycle-by-cycle pre-turn-off, low standby current, and proportional gate drive enhance efficiency.
10. In which applications is the UCC24612-2DBVR commonly used?
It is used in industrial power supplies, automotive onboard chargers, consumer electronics adapters, and LED drivers.
