Overview
The UCC27424DGNRG4 is a high-speed dual MOSFET driver produced by Texas Instruments. This component is part of the UCC2742x family, designed to deliver large peak currents into capacitive loads, making it ideal for applications requiring efficient MOSFET switching. The device is available in a thermally enhanced 8-pin PowerPAD™ MSOP package, which significantly reduces thermal resistance to improve long-term reliability.
The UCC27424 offers three standard logic options: dual-inverting, dual-noninverting, and one-inverting and one-noninverting driver configurations. It features enable functions for each driver, enhancing control over the operation of the driver applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | MSOP-8 (PowerPAD™) |
| Pins | 8 |
| Operating Temperature Range (°C) | -40 to 125 |
| Peak Output Current | ±4 A |
| Supply Voltage Range | 4 V to 15 V |
| Rise Time (Typical with 1.8-nF Load) | 20 ns |
| Fall Time (Typical with 1.8-nF Load) | 15 ns |
| Propagation Delay Time (Typical) | 25 ns (Input Falling), 35 ns (Input Rising) |
Key Features
- Industry-standard pin-out
- Enable functions for each driver
- High current drive capability of ±4 A
- Unique BiPolar and CMOS true drive output stage for high current at MOSFET Miller thresholds
- TTL/CMOS compatible inputs independent of supply voltage
- Dual outputs can be paralleled for higher drive current
- Thermally enhanced PowerPAD™ MSOP package for improved reliability
- Design inherently minimizes shoot-through current
Applications
The UCC27424DGNRG4 is suitable for various high-speed switching applications, including but not limited to:
- Power supplies and DC-DC converters
- Motor control and drive systems
- High-frequency switching circuits
- Industrial control systems
- Aerospace and defense applications (for the UCC27424-EP version)
Q & A
- What is the peak output current of the UCC27424DGNRG4?
The peak output current is ±4 A.
- What are the available logic options for the UCC27424?
The device offers dual-inverting, dual-noninverting, and one-inverting and one-noninverting driver configurations.
- What is the operating temperature range of the UCC27424DGNRG4?
The operating temperature range is -40°C to 125°C.
- What is the supply voltage range for the UCC27424?
The supply voltage range is 4 V to 15 V.
- How does the UCC27424 minimize shoot-through current?
The design inherently minimizes shoot-through current through its unique output stage.
- What is the typical rise and fall time of the UCC27424 with a 1.8-nF load?
The typical rise time is 20 ns, and the typical fall time is 15 ns.
- Can the dual outputs of the UCC27424 be paralleled?
Yes, the dual outputs can be paralleled for higher drive current.
- What is the purpose of the enable functions in the UCC27424?
The enable functions (ENBA and ENBB) are implemented to better control the operation of the driver applications.
- Why is the PowerPAD™ MSOP package beneficial?
The PowerPAD™ MSOP package drastically lowers the thermal resistance, improving long-term reliability.
- Are external Schottky clamp diodes typically required with the UCC27424?
No, in many cases, external Schottky clamp diodes are not required due to the low impedance provided by the body diode of the external MOSFET.
