Overview
The UCC37324DR, produced by Texas Instruments, is a high-speed dual-channel gate driver designed to drive MOSFETs efficiently. This component is part of the UCC2732x and UCC3732x family, which offers dual-inverting, dual-noninverting, and one-inverting and one-noninverting driver configurations. The UCC37324DR specifically features non-inverting inputs and is optimized for driving external N-channel MOSFETs.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Package | SOIC-8 (D), MSOP-PowerPAD (DGN) | Thermally enhanced packages |
| Operating Temperature | -40°C to 125°C | |
| Supply Voltage (VDD) | 4.5V to 15V | |
| Peak Output Current | ±4 A | Combined current from bipolar and MOSFET transistors |
| Rise/Fall Times @ 1.8nF load | 20ns/15ns | |
| Propagation Delay | 35ns/25ns | Rise/Fall propagation delay |
| Input Thresholds | 3.3-V logic sensitivity | Independent of supply voltage |
| Static Operating Current | 150 μA to 750 μA | Dependent on input states |
Key Features
- Bi-CMOS Output Architecture: Combines bipolar and MOSFET transistors in parallel for efficient current sourcing and sinking at low supply voltages.
- High Peak Drive Current: Delivers ±4 A peak current at the Miller Plateau Region.
- TTL/CMOS Inputs: Input thresholds are based on TTL and CMOS logic, independent of supply voltage, with wide input hysteresis for excellent noise immunity.
- Thermally Enhanced Packages: Available in SOIC-8 and MSOP-PowerPAD packages, which lower thermal resistance to improve long-term reliability.
- Industry-Standard Pin-Out: Compatible with standard pin configurations for ease of integration.
- Low Output Resistance: Provides very low impedance to overshoot and undershoot, often eliminating the need for external Schottky clamp diodes.
Applications
- Power Supplies: Suitable for use in high-speed power supply applications, including DC-DC converters and power amplifiers.
- Motor Control: Can be used in motor control systems where high current drive capabilities are required.
- Telecom and RF Power Amplifiers: Ideal for driving MOSFETs in telecom and RF power amplifier stages due to its high-speed and low output resistance characteristics.
- Industrial Automation: Used in various industrial automation applications requiring reliable and efficient MOSFET driving.
Q & A
- What is the peak output current of the UCC37324DR?
The UCC37324DR can deliver ±4 A peak current.
- What are the available package options for the UCC37324DR?
The component is available in SOIC-8 (D) and MSOP-PowerPAD (DGN) packages.
- What is the operating temperature range of the UCC37324DR?
The operating temperature range is -40°C to 125°C.
- What is the supply voltage range for the UCC37324DR?
The supply voltage range is 4.5V to 15V.
- What type of input logic does the UCC37324DR support?
The component supports TTL and CMOS input logic, independent of the supply voltage.
- Does the UCC37324DR require external Schottky clamp diodes?
Often not required due to its low output resistance and ability to handle overshoot and undershoot.
- What are the typical applications of the UCC37324DR?
Power supplies, motor control, telecom and RF power amplifiers, and industrial automation.
- How does the Bi-CMOS output architecture benefit the UCC37324DR?
It allows for efficient current sourcing and sinking at low supply voltages by combining bipolar and MOSFET transistors in parallel.
- What is the significance of the Miller Plateau Region in the context of the UCC37324DR?
The component delivers ±4 A peak current at the Miller Plateau Region, which is crucial for effective MOSFET switching.
- Does the UCC37324DR have built-in protection features?
Yes, it includes latch-up protection and can withstand 500-mA reverse current without damage.
