Overview
The UCC37322DRG4 is a single 9-A high-speed low-side MOSFET driver produced by Texas Instruments. This component is designed to provide high gate drive current, particularly during the Miller plateau region of MOSFET switching transitions. It features a unique hybrid output stage that combines bipolar and MOSFET transistors, known as TrueDrive, which allows for efficient current delivery even at low supply voltages. The device includes latch-up and ESD protection circuitries and an enable function for better control over driver operations. Available in 8-pin SOIC and MSOP PowerPAD packages, the UCC37322DRG4 enhances thermal performance and long-term reliability.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Peak Output Current | Maximum current the driver can output | 9 A (VDD = 14 V) |
| Supply Voltage Range | Operating voltage range of the driver | 4 V to 15 V |
| Input Delay | Time delay from input to output | 25 ns |
| Output Delay | Time delay from input to output | 35 ns |
| Output Resistance High | Output resistance when the output is high | 0.6 Ω to 1.5 Ω (IOUT = –10 mA) |
| Output Resistance Low | Output resistance when the output is low | 0.4 Ω to 1 Ω (IOUT = 10 mA) |
| Static Operating Current | Current consumption in static operation | 150 µA to 650 µA (depending on input and enable states) |
| Package Type | Available package types | 8-pin SOIC, 8-pin MSOP PowerPAD |
| Junction-to-Ambient Thermal Resistance | Thermal resistance from junction to ambient | 56.6 °C/W (SOIC), 56.7 °C/W (MSOP PowerPAD) |
Key Features
- High Gate Drive Current: Provides high current during MOSFET switching transitions, especially at the Miller plateau region.
- TrueDrive Output Stage: A hybrid output stage combining bipolar and MOSFET transistors for efficient current delivery at low supply voltages.
- Enable Function: An enable (ENBL) function for better control over driver operations, internally pulled up to VDD for active high logic.
- Latch-Up and ESD Protection: Includes protection circuitries to prevent latch-up and ESD damage.
- Thermally Enhanced Packages: Available in 8-pin SOIC and MSOP PowerPAD packages, which lower thermal resistance and improve long-term reliability.
Applications
- Power Management Systems: Suitable for use in various power management systems requiring high-speed and high-current MOSFET drivers.
- Motor Control: Can be used in motor control applications where high gate drive current is necessary.
- Industrial Automation: Applicable in industrial automation systems that require reliable and efficient MOSFET drivers.
- Consumer Electronics: Used in consumer electronics that need high-speed switching and efficient power management.
Q & A
- What is the peak output current of the UCC37322DRG4?
The peak output current of the UCC37322DRG4 is 9 A when VDD is 14 V.
- What is the supply voltage range for the UCC37322DRG4?
The supply voltage range for the UCC37322DRG4 is from 4 V to 15 V.
- What is the input delay of the UCC37322DRG4?
The input delay of the UCC37322DRG4 is 25 ns.
- What is the output delay of the UCC37322DRG4?
The output delay of the UCC37322DRG4 is 35 ns.
- What are the available package types for the UCC37322DRG4?
The UCC37322DRG4 is available in 8-pin SOIC and 8-pin MSOP PowerPAD packages.
- Does the UCC37322DRG4 have any protection circuitries?
Yes, the UCC37322DRG4 includes latch-up and ESD protection circuitries.
- What is the purpose of the TrueDrive output stage in the UCC37322DRG4?
The TrueDrive output stage combines bipolar and MOSFET transistors to provide efficient current delivery at low supply voltages.
- How does the enable function work on the UCC37322DRG4?
The enable (ENBL) function is internally pulled up to VDD for active high logic and can be left open for standard operation.
- What are the thermal benefits of the MSOP PowerPAD package?
The MSOP PowerPAD package lowers thermal resistance, extending the temperature operation range and improving long-term reliability.
- What are some common applications for the UCC37322DRG4?
The UCC37322DRG4 is suitable for power management systems, motor control, industrial automation, and consumer electronics.
