Overview
The UCC27425DGN is a high-speed dual MOSFET driver produced by Texas Instruments. This component is part of the UCC2742x family, which offers dual-channel gate drivers with various logic configurations. The UCC27425DGN specifically features one inverting and one non-inverting driver, making it versatile for different application needs. It is designed to deliver high current drive capability, minimize shoot-through current, and provide efficient current sourcing and sinking at low supply voltages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VDD) | 4 to 15 | V |
| Output Current (IOUT_DC) | ±4 A | A |
| Pulsed Output Current (IOUT_PULSED) | 4.5 A (0.5 μs) | A |
| Input Voltage (VIN) | –5 to 6 or VDD + 0.3 (whichever is larger) | V |
| Enable Voltage (ENBA, ENBB) | –0.3 to 6 or VDD + 0.3 (whichever is larger) | V |
| Junction Operating Temperature (TJ) | –55 to 150 | °C |
| Propagation Delay Time | 25 ns (falling), 35 ns (rising) | ns |
| Rise Time | 20 ns (typical) | ns |
| Fall Time | 15 ns (typical) | ns |
| Package Types | SOIC-8 (D), MSOP-8 PowerPAD (DGN), PDIP-8 (P) |
Key Features
- Industry-standard pin-out with enable functions for each driver.
- High current drive capability of ±4 A.
- Unique BiPolar and CMOS True Drive output stage for efficient current sourcing and sinking at low supply voltages.
- TTL/CMOS compatible inputs independent of supply voltage.
- Low propagation delay times (25 ns falling, 35 ns rising) and fast rise and fall times (20 ns and 15 ns respectively).
- Dual outputs can be paralleled for higher drive current.
- Available in thermally enhanced MSOP PowerPAD package to improve long-term reliability.
- Rated from –40°C to 125°C.
Applications
The UCC27425DGN is suitable for a variety of 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.
- Automotive and aerospace electronics.
Q & A
- What is the maximum output current of the UCC27425DGN?
The maximum output current is ±4 A. - What are the available package types for the UCC27425DGN?
The component is available in SOIC-8 (D), MSOP-8 PowerPAD (DGN), and PDIP-8 (P) packages. - What is the operating temperature range of the UCC27425DGN?
The operating temperature range is from –40°C to 125°C. - Can the dual outputs of the UCC27425DGN be paralleled?
Yes, the dual outputs can be paralleled for higher drive current. - What is the typical propagation delay time of the UCC27425DGN?
The typical propagation delay times are 25 ns for falling input and 35 ns for rising input. - What is the unique feature of the output stage of the UCC27425DGN?
The output stage is a unique BiPolar and CMOS hybrid, allowing efficient current sourcing and sinking at low supply voltages. - Is the UCC27425DGN compatible with TTL/CMOS inputs?
Yes, it is compatible with TTL/CMOS inputs independent of the supply voltage. - What is the purpose of the enable functions (ENBA, ENBB) in the UCC27425DGN?
The enable functions provide better control over the operation of the driver applications and are internally pulled up to VDD for active high logic. - How does the PowerPAD package enhance the UCC27425DGN?
The PowerPAD package drastically lowers the thermal resistance, improving long-term reliability. - What are some common applications of the UCC27425DGN?
Common applications include power supplies, DC-DC converters, motor control systems, high-frequency switching circuits, and industrial control systems.
