Overview
The UCC27324DGN is a high-speed dual-MOSFET driver produced by Texas Instruments. It belongs to the UCC2732x and UCC3732x family, which are designed to deliver 4-A source and 4-A sink peak current to effectively drive MOSFETs, particularly at the Miller Plateau Region. This component features a unique Bi-CMOS output architecture, combining bipolar and MOSFET transistors in parallel, allowing for efficient current sourcing and sinking even at low supply voltages. The UCC27324DGN is available in an 8-pin HVSSOP (DGN) package, which includes a thermally enhanced PowerPAD to lower thermal resistance and improve long-term reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | HVSSOP (DGN) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage (VDD) | 4.5 to 15 | V |
| Peak Output Current | ±4 A | A |
| Rise/Fall Times @ 1.8 nF load | 20 ns / 15 ns | ns |
| Input Logic Compatibility | TTL/CMOS | - |
| Input Thresholds | Logic 1: 1.6 to 2.5 V, Logic 0: 0.8 to 1.5 V | V |
| Output Resistance High/Low | 0.6 to 1.5 Ω / 0.4 to 1 Ω | Ω |
| Junction-to-Ambient Thermal Resistance (RθJA) | 56.6 °C/W (DGN package) | °C/W |
Key Features
- Bi-CMOS Output Architecture
- ±4 A Drive Current at the Miller Plateau Region
- Constant-Current Even at Low Supply Voltages
- Outputs Paralleled for Higher Drive Current
- Available in MSOP-PowerPAD™ Package
- TTL/CMOS Inputs Independent of Supply Voltage
- Industry-Standard Pin-Out
- Wide Input Hysteresis for Excellent Noise Immunity
Applications
- Switch-Mode Power Supplies
- DC-DC Converters
- Solar Inverters
- Motor Control
- UPS (Uninterruptible Power Supplies)
Q & A
- What is the peak output current of the UCC27324DGN?
The UCC27324DGN can deliver ±4 A peak output current.
- What are the operating temperature ranges for the UCC27324DGN?
The operating temperature range is from -40°C to 125°C.
- What is the supply voltage range for the UCC27324DGN?
The supply voltage range is from 4.5 V to 15 V.
- What type of input logic does the UCC27324DGN support?
The UCC27324DGN supports TTL/CMOS input logic.
- What is the significance of the Bi-CMOS output architecture in the UCC27324DGN?
The Bi-CMOS output architecture combines bipolar and MOSFET transistors in parallel, allowing for efficient current sourcing and sinking even at low supply voltages.
- What is the purpose of the PowerPAD in the MSOP package?
The PowerPAD is thermally enhanced and helps to lower thermal resistance, improving long-term reliability.
- What are some common applications of the UCC27324DGN?
Common applications include switch-mode power supplies, DC-DC converters, solar inverters, motor control, and UPS systems.
- How does the UCC27324DGN handle noise immunity?
The UCC27324DGN features wide input hysteresis, which provides excellent noise immunity.
- Can the outputs of the UCC27324DGN be paralleled for higher drive current?
Yes, the outputs can be paralleled to achieve higher drive current.
- What is the typical rise and fall time of the UCC27324DGN at a 1.8 nF load?
The typical rise and fall times are 20 ns and 15 ns, respectively.
