Overview
The UCC27614DR, produced by Texas Instruments, is a single-channel, high-speed, low-side gate driver designed to effectively drive MOSFET, IGBT, SiC, and GaN power switches. This device features a typical peak drive strength of 10 A, both for source and sink currents, which significantly reduces the rise and fall times of the power switches, thereby lowering switching losses and increasing system efficiency. The UCC27614DR boasts a small propagation delay of approximately 17.5 ns, enhancing dead-time optimization, pulse width utilization, control loop response, and transient performance of the system. It is available in compact 2-mm × 2-mm SON8 and 4.90 mm × 3.91 mm SOIC8 packages, making it ideal for high-density power systems.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 4.5 | 12 | 26 | V |
| Input Voltage (IN, EN, IN+, IN-) | -10 | 30 | V | |
| Output Voltage (DC) | -0.3 | VDD + 0.3 | V | |
| Output Voltage (200-ns Pulse) | -2 | VDD + 3 | V | |
| Operating Junction Temperature (TJ) | -40 | 150 | °C | |
| Propagation Delay | 17.5 | ns | ||
| Rise Time (CLOAD = 1.8 nF) | 4.5 | 6 | ns | |
| Fall Time (CLOAD = 1.8 nF) | 4 | 5.5 | ns |
Key Features
- High Drive Current: Typical 10-A source and 10-A sink output currents to drive large gate charge loads efficiently.
- Low Propagation Delay: Approximately 17.5 ns to minimize pulse transmission distortion and improve system efficiency.
- Wide VDD Operating Range: From 4.5 V to 26 V with undervoltage lockout (UVLO) protection.
- Input Robustness: Input and enable pins can withstand up to -10 V, enhancing signal reliability in noisy environments.
- Independent Enable Signal: Allows the power stage to be controlled independently of the main control logic and quickly shut off in case of a fault.
- Compact Package: Available in 2-mm × 2-mm SON8 and 4.90 mm × 3.91 mm SOIC8 packages for high-density designs.
- Transient Handling Capability: Handles reverse currents and voltages, ensuring robust operation in high-frequency switching applications.
Applications
- Telecom Switch Mode Power Supplies: High-efficiency power supplies for telecommunications equipment.
- Power Factor Correction (PFC) Circuits: Improves power factor in AC-DC converters.
- Solar Power Supplies: Efficient power conversion in solar energy systems.
- Motor Drives: High-performance motor control systems.
- High Frequency Line Drivers: Drives high-frequency signals in various applications.
- Pulse Transformer Drivers: Efficient driving of pulse transformers.
- High Power Buffers: Used in high-power buffering applications.
Q & A
- What is the typical drive current of the UCC27614DR?
The UCC27614DR has a typical peak drive strength of 10 A for both source and sink currents. - What is the propagation delay of the UCC27614DR?
The propagation delay is approximately 17.5 ns. - What is the operating voltage range for VDD?
The VDD operating range is from 4.5 V to 26 V. - Can the inputs handle negative voltages?
Yes, the inputs and enable pins can withstand up to -10 V. - What are the package options for the UCC27614DR?
It is available in 2-mm × 2-mm SON8 and 4.90 mm × 3.91 mm SOIC8 packages. - What is the operating junction temperature range?
The operating junction temperature range is from -40°C to 150°C. - Does the UCC27614DR have undervoltage lockout (UVLO) protection?
Yes, it has UVLO protection. - Can the UCC27614DR be used with CMOS-based controllers?
Yes, as long as the threshold requirement is met. - What is the purpose of the enable (EN) pin?
The EN pin allows the power stage to be controlled independently of the main control logic and can quickly shut off the power stage in case of a fault. - How does the UCC27614DR handle high-frequency noise?
The device performs well in high-frequency switching conditions due to its transient reverse current and reverse voltage capability.
