Overview
The UCC256402DDBR, manufactured by Texas Instruments, is a highly efficient LLC resonant controller designed for power supply applications. This component is part of the UCC25640x series and is tailored for use in AC/DC and isolated DC/DC switch-mode power supplies. It integrates a high-voltage gate driver and is optimized for low power consumption, making it suitable for applications requiring high efficiency and minimal standby power. The UCC256402DDBR is ideal for designers looking to meet stringent energy efficiency standards such as DoE Level VI and EU CoC Tier-2.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage (Max) | 30 | V | |
| Input Voltage (Min) | 13 | V | |
| Operating Temperature Range | -40 to 125 | °C | |
| Topology | Half-Bridge, Resonant LLC | ||
| Control Mode | Hybrid Hysteretic Control | ||
| Gate Driver Current (Source/Sink) | 0.6/1.2 | A | |
| Package | SOIC-14 |
Key Features
- Integrated high-voltage gate driver with 0.6 A source and 1.2 A sink capability.
- Hybrid hysteretic control for superior transient response.
- Programmable burst mode with soft-on and soft-off periods to minimize audible noise.
- Active X-capacitor discharge function.
- Robust over-temperature, over-voltage, and under-voltage protections.
Applications
The UCC256402DDBR is widely used in various power supply applications, including industrial power systems, consumer electronics, and telecommunications. Its ability to operate efficiently at low power makes it particularly suitable for applications requiring high energy efficiency and low standby power consumption, such as adapters, chargers, and server power supplies.
Q & A
What is the maximum input voltage for UCC256402DDBR?
The maximum input voltage is 30 V.
What is the operating temperature range of UCC256402DDBR?
It operates within a temperature range of -40°C to 125°C.
What topology does UCC256402DDBR support?
It supports Half-Bridge and Resonant LLC topologies.
Can UCC256402DDBR be used in consumer electronics?
Yes, it is suitable for consumer electronics due to its high efficiency and low power consumption.
What is the gate driver current capability of UCC256402DDBR?
The gate driver can source 0.6 A and sink 1.2 A.
Does UCC256402DDBR have over-temperature protection?
Yes, it includes robust over-temperature protection.
What is the package type of UCC256402DDBR?
It comes in an SOIC-14 package.
Is UCC256402DDBR suitable for server power supplies?
Yes, its efficiency and protection features make it ideal for server power supplies.
What control mode does UCC256402DDBR use?
It uses Hybrid Hysteretic Control for superior transient response.
Can UCC256402DDBR minimize audible noise in standby mode?
Yes, its programmable burst mode with soft-on and soft-off periods minimizes audible noise.
