Overview
The UCC27425D, produced by Texas Instruments, is a high-speed dual MOSFET driver that belongs to the UCC2742x family. This component is designed to deliver large peak currents into capacitive loads, making it suitable for various high-current drive applications. It is available in several package options, including the thermally enhanced 8-pin PowerPAD™ MSOP package (DGN), the standard SOIC-8 (D), and the PDIP-8 (P) packages. The unique BiPolar and CMOS hybrid output stage of the UCC27425D allows for efficient current sourcing and sinking at low supply voltages, and it minimizes shoot-through current during MOSFET switching transitions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC-8 (D), PowerPAD-MSOP (DGN), PDIP-8 (P) | |
| Pins | 8 | |
| Operating Temperature Range | -40°C to 125°C | °C |
| Supply Voltage | 4 V to 15 V | V |
| Output Current | ±4 A | A |
| Rise Time | 20 ns (typical) with 1.8-nF load | ns |
| Fall Time | 15 ns (typical) with 1.8-nF load | ns |
| Propagation Delay Time | 25 ns (typical) for input falling, 35 ns (typical) for input rising | ns |
| Enable Impedance | 75 kΩ to 140 kΩ | kΩ |
Key Features
- Industry-Standard Pin-Out
- Enable Functions for Each Driver (ENBA and ENBB)
- 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
- Fast Rise and Fall Times (20 ns and 15 ns respectively with 1.8-nF load)
- Typical Propagation Delay Times of 25 ns and 35 ns
- Dual Outputs Can Be Paralleled for Higher Drive Current
- Available in Thermally Enhanced MSOP PowerPAD™ Package
- Rated From –40°C to 125°C
Applications
The UCC27425D is suitable for a variety of high-current drive applications, including but not limited to:
- MOSFET and IGBT gate driving in power supplies and motor control systems
- High-frequency switching applications
- Power management systems requiring high current drive capabilities
- Industrial control and automation systems
- Aerospace and automotive systems where high reliability and thermal performance are critical
Q & A
- What is the operating temperature range of the UCC27425D?
The operating temperature range is -40°C to 125°C.
- What are the available package options for the UCC27425D?
The component is available in SOIC-8 (D), PowerPAD-MSOP (DGN), and PDIP-8 (P) packages.
- What is the maximum output current of the UCC27425D?
The maximum output current is ±4 A.
- What is the typical rise and fall time of the UCC27425D with a 1.8-nF load?
The typical rise time is 20 ns and the typical fall time is 15 ns.
- Does the UCC27425D have enable functions?
Yes, it has enable functions (ENBA and ENBB) for each driver.
- What is the supply voltage range for the UCC27425D?
The supply voltage range is 4 V to 15 V.
- Can the dual outputs of the UCC27425D be paralleled for higher drive current?
Yes, the dual outputs can be paralleled for higher drive current.
- What is the propagation delay time of the UCC27425D?
The typical propagation delay time is 25 ns for input falling and 35 ns for input rising.
- Is the UCC27425D compatible with TTL/CMOS inputs?
Yes, it is TTL/CMOS compatible independent of the supply voltage.
- What is the thermal performance of the PowerPAD™ MSOP package?
The PowerPAD™ MSOP package drastically lowers the thermal resistance to improve long-term reliability.
