Overview
The UCC27323DGNR, produced by Texas Instruments, is a high-speed dual-channel low-side MOSFET driver. It is part of the UCC2732x and UCC3732x family, which is designed to deliver 4-A source and 4-A sink peak current, making it highly effective for driving MOSFETs, especially during the Miller Plateau Region. This device features a unique Bi-CMOS output architecture, combining bipolar and MOSFET transistors in parallel to ensure efficient current sourcing and sinking even at low supply voltages.
The UCC27323DGNR is available in the thermally enhanced 8-pin PowerPAD MSOP package (DGN), which significantly reduces thermal resistance to enhance long-term reliability. The device supports TTL/CMOS inputs that are independent of the supply voltage and offers wide input hysteresis for excellent noise immunity.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | -0.3 | 16 | V | |
| Junction Operating Temperature (TJ) | -55 | 150 | °C | |
| Output Current (OUTA, OUTB) - DC | 0.2 | A | ||
| Output Current (OUTA, OUTB) - Pulsed (0.5 µs) | 4.5 | A | ||
| Rise Time (OUTA, OUTB) @ 1.8 nF Load | 20 | 40 | ns | |
| Fall Time (OUTA, OUTB) @ 1.8 nF Load | 15 | 40 | ns | |
| Delay, IN Rising (IN to OUT) @ 1.8 nF Load | 25 | 40 | ns | |
| Delay, IN Falling (IN to OUT) @ 1.8 nF Load | 35 | 35 | ns | |
| Input Current (INA, INB) | -10 | 10 | µA | |
| Logic 1 Input Threshold (VIN_H) | 1.6 | 2.2 | 2.5 | V |
| Logic 0 Input Threshold (VIN_L) | 0.8 | 1.2 | 1.5 | V |
Key Features
- Bi-CMOS Output Architecture: Combines bipolar and MOSFET transistors in parallel for efficient current sourcing and sinking.
- High Drive Current: Delivers ±4-A peak current at the Miller Plateau Region.
- Low Supply Voltage Operation: Maintains constant current even at low supply voltages.
- Parallel Outputs: Outputs can be paralleled for higher drive current.
- Thermally Enhanced Package: Available in the 8-pin PowerPAD MSOP package (DGN) for improved thermal performance.
- TTL/CMOS Inputs: Inputs are independent of supply voltage with wide input hysteresis for excellent noise immunity.
- Industry-Standard Pin-Out: Compatible with standard pin configurations.
Applications
The UCC27323DGNR is suitable for a variety of high-speed power management and motor control applications, including:
- Power Supplies: High-efficiency power supplies, especially those requiring fast switching times.
- Motor Control: Driving N-Channel MOSFETs in motor control circuits.
- Industrial Automation: Used in industrial automation systems that require reliable and efficient MOSFET driving.
- Automotive Systems: Applicable in automotive systems due to its robust thermal and electrical characteristics.
Q & A
- What is the peak output current of the UCC27323DGNR?
The UCC27323DGNR delivers ±4-A peak current.
- What are the available package options for the UCC27323DGNR?
The device is available in the standard SOIC-8 (D) and the thermally enhanced 8-pin PowerPAD MSOP package (DGN).
- What is the operating temperature range of the UCC27323DGNR?
The junction operating temperature range is from -55°C to 150°C.
- What are the input voltage thresholds for the UCC27323DGNR?
The logic 1 input threshold is between 1.6V and 2.5V, and the logic 0 input threshold is between 0.8V and 1.5V.
- How does the UCC27323DGNR handle noise immunity?
The device features wide input hysteresis, providing excellent noise immunity.
- Can the outputs of the UCC27323DGNR be paralleled?
- What is the rise and fall time of the UCC27323DGNR at a 1.8 nF load?
The rise time is between 20 ns and 40 ns, and the fall time is between 15 ns and 40 ns.
- What is the delay time from input to output for the UCC27323DGNR?
The delay time for IN rising is between 25 ns and 40 ns, and for IN falling is between 35 ns.
- Is the UCC27323DGNR RoHS compliant?
- What kind of logic inputs does the UCC27323DGNR support?
The device supports TTL/CMOS inputs independent of the supply voltage.
