Overview
The UCC27322DG4, produced by Texas Instruments, is a high-speed, low-side MOSFET driver that belongs to the UCC2732x/UCC3732x family. This device is designed to deliver high peak drive currents, making it suitable for applications requiring extreme Miller current due to high dV/dt transitions. It features an industry-standard pinout and is available in an 8-pin MSOP-PowerPAD package, which enhances thermal performance and reliability.
The UCC27322DG4 can drive large MOSFETs efficiently, eliminating the need for additional external circuits and reducing design complexity and assembly costs. It offers both inverting and noninverting logic options, with the UCC27322 being the noninverting version.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Output Current | 9 A | A |
| Supply Voltage Range | 4.5 to 15 | V |
| Output Resistance High | 0.6 to 1.5 | Ω |
| Output Resistance Low | 0.4 to 1 | Ω |
| Propagation Delay Time (IN to OUT) | 25 to 70 | ns |
| Rise Time (OUT) | 20 to 70 | ns |
| Fall Time (OUT) | 20 to 30 | ns |
| Junction-to-Ambient Thermal Resistance (RθJA) | 56.7 | °C/W |
| Operating Temperature Range | -40 to 125 | °C |
Key Features
- High Peak Drive Current: Delivers 9 A of peak drive current, suitable for driving large MOSFETs.
- TrueDrive Output Architecture: Uses a hybrid output stage paralleling bipolar and MOSFET transistors for efficient current delivery at low supply voltages.
- Low Shoot-Through Current: Inherently minimizes shoot-through current, reducing the need for additional external circuits.
- Enable Function: Includes an enable (ENBL) function for better control of the driver operation.
- Thermal Performance: Available in the MSOP-PowerPAD package, which lowers thermal resistance and improves long-term reliability.
- Latch-Up and ESD Protection: Includes latch-up and ESD protection circuitries for enhanced reliability.
Applications
- Switch-Mode Power Supplies: Ideal for high-efficiency power supply designs.
- DC-DC Converters: Suitable for various DC-DC converter applications requiring high current drive.
- Motor Controllers: Used in motor control systems that need high current drive capabilities.
- Class-D Switching Amplifiers: Applicable in Class-D amplifier designs where high current drive is necessary.
- Line Drivers and Pulse Transformer Drivers: Can be used in line driver and pulse transformer driver applications.
Q & A
- What is the peak output current of the UCC27322DG4?
The peak output current of the UCC27322DG4 is 9 A.
- What is the supply voltage range for the UCC27322DG4?
The supply voltage range is from 4.5 V to 15 V.
- What is the typical rise and fall time of the UCC27322DG4?
The typical rise time is 20 to 70 ns, and the typical fall time is 20 to 30 ns.
- What is the junction-to-ambient thermal resistance of the MSOP-PowerPAD package?
The junction-to-ambient thermal resistance (RθJA) is 56.7 °C/W.
- Does the UCC27322DG4 have an enable function?
- What are the key applications of the UCC27322DG4?
- What is the TrueDrive output architecture?
The TrueDrive output architecture uses a hybrid output stage paralleling bipolar and MOSFET transistors for efficient current delivery at low supply voltages.
- Does the UCC27322DG4 have latch-up and ESD protection?
- What is the operating temperature range of the UCC27322DG4?
- What package options are available for the UCC27322DG4?
