Overview
The UCC27424DRG4 is a high-speed dual MOSFET driver from Texas Instruments, designed to deliver large peak currents into capacitive loads. This device is part of the UCC2742x family, which includes dual-inverting, dual-noninverting, and one-inverting and one-noninverting driver configurations. The UCC27424DRG4 is particularly useful in high-frequency power supplies, DC/DC converters, and other applications requiring high current drive capability.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC-8 |
| Supply Voltage | 4 V to 15 V |
| Output Current Capability | ±4 A |
| Rise Time (Typical) | 20 ns with 1.8-nF load |
| Fall Time (Typical) | 15 ns with 1.8-nF load |
| Propagation Delay Times | 25 ns (input falling), 35 ns (input rising) |
| Operating Temperature Range | –40°C to 125°C |
| Input Compatibility | TTL/CMOS compatible inputs independent of supply voltage |
| Enable Functions | Dual enable inputs (ENBA and ENBB) with internal pull-up to VDD |
Key Features
- Industry-standard pin-out with enable functions for each driver
- High current drive capability of ±4 A, optimized for the Miller plateau region during MOSFET switching
- 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
- Fast rise and fall times: 20 ns and 15 ns respectively with a 1.8-nF load
- Dual outputs can be paralleled for higher drive current
- Available in thermally enhanced MSOP PowerPAD™ package, as well as standard SOIC-8 and PDIP-8 packages
- Enhanced noise immunity with wide hysteresis on input and enable thresholds
Applications
- Switch mode power supplies
- DC/DC converters
- Motor controllers
- Line drivers
- Class D switching amplifiers
- Synchronous rectification supplies
Q & A
- What is the maximum output current capability of the UCC27424DRG4?
The UCC27424DRG4 can deliver up to ±4 A of output current.
- What are the typical rise and fall times of the UCC27424DRG4?
The typical rise time is 20 ns and the typical fall time is 15 ns with a 1.8-nF load.
- What is the operating temperature range of the UCC27424DRG4?
The operating temperature range is from –40°C to 125°C.
- Is the UCC27424DRG4 compatible with TTL and CMOS inputs?
Yes, it is compatible with TTL and CMOS inputs independent of the supply voltage.
- Can the dual outputs of the UCC27424DRG4 be paralleled for higher drive current?
Yes, the dual outputs can be paralleled to achieve higher drive current.
- What types of packages are available for the UCC27424DRG4?
The device is available in thermally enhanced MSOP PowerPAD™, SOIC-8, and PDIP-8 packages.
- What are the enable functions on the UCC27424DRG4?
The device has dual enable inputs (ENBA and ENBB) which are internally pulled up to VDD for active high logic.
- How does the UCC27424DRG4 minimize shoot-through current?
The device uses a design that inherently minimizes shoot-through current, ensuring efficient MOSFET switching transitions.
- What is the unique output stage of the UCC27424DRG4?
The device features a unique BiPolar and CMOS True Drive output stage that provides high current at MOSFET Miller thresholds.
- What are some common applications of the UCC27424DRG4?
Common applications include switch mode power supplies, DC/DC converters, motor controllers, line drivers, and Class D switching amplifiers.
