Overview
The UCC27282-Q1, produced by Texas Instruments, is a high-performance, automotive-grade half-bridge driver designed to drive N-channel MOSFETs in various power management applications. This device is optimized for use in synchronous buck and half-bridge configurations, making it suitable for high-frequency and high-power systems. The UCC27282-Q1 features independent control of the high-side and low-side drivers, enabling robust and efficient operation in demanding environments.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 5.5 | 12 | 16 | V |
| Peak Source Current | - | - | 2.5 A | A |
| Peak Sink Current | - | - | 3.5 A | A |
| High-Side Voltage (VHS) | -8 | - | 100 | V |
| Bootstrap Voltage (VHB) | - | - | 120 V | V |
| Rise Time (Typical) | - | 12 ns | - | ns |
| Fall Time (Typical) | - | 10 ns | - | ns |
| Operating Junction Temperature | -40 | - | 150 | °C |
| UVLO Threshold (VDD Rising) | 4.7 | 5.0 | 5.4 | V |
Key Features
- Dual independent gate drivers for high-side and low-side N-channel MOSFETs in half-bridge or synchronous buck configurations.
- Robust 3.5A peak sink and 2.5A peak source current capabilities.
- Broad supply voltage range from 5.5V to 16V.
- Integrated bootstrap diode eliminates the need for an external discrete diode.
- Under voltage lockout (UVLO) for both high-side and low-side driver stages.
- Enable and disable functionality with low power consumption.
- Input interlock to prevent cross-conduction.
- Small propagation delay and delay matching specifications to minimize dead-time requirement.
- Compliant with AEC-Q100 automotive qualification standards.
- Operational temperature range from -40°C to 125°C.
Applications
The UCC27282-Q1 is designed for various automotive and industrial power management applications, including:
- Synchronous buck converters.
- Half-bridge configurations.
- Automotive power systems (e.g., battery management, motor control).
- High-frequency power supplies.
- High-density power systems requiring compact designs.
Q & A
- What is the maximum switch node voltage rating of the UCC27282-Q1?
The maximum switch node (HS) voltage rating is 100 V.
- What are the peak source and sink current capabilities of the UCC27282-Q1?
The device has a 3-A peak source current and a 3.5-A peak sink current.
- What is the supply voltage range for the UCC27282-Q1?
The supply voltage range is from 5.5V to 16V.
- Does the UCC27282-Q1 have integrated UVLO protection?
Yes, it has under voltage lockout (UVLO) protection for both the high-side and low-side driver stages.
- What is the purpose of the integrated bootstrap diode in the UCC27282-Q1?
The integrated bootstrap diode eliminates the need for an external discrete diode, saving board space and reducing system cost.
- How does the input interlock feature improve system robustness?
The input interlock prevents cross-conduction by shutting off both outputs when the two inputs overlap, improving system reliability in high noise applications.
- What is the operating junction temperature range of the UCC27282-Q1?
The operating junction temperature range is from -40°C to 150°C.
- Is the UCC27282-Q1 compliant with automotive standards?
Yes, it is compliant with AEC-Q100 automotive qualification standards.
- What are the typical rise and fall times of the UCC27282-Q1?
The typical rise time is 12 ns, and the typical fall time is 10 ns.
- What is the purpose of the enable and disable functionality in the UCC27282-Q1?
The enable and disable functionality provides additional system flexibility by reducing power consumption and responding to fault events within the system.
