Overview
The UCC27211DDAR is a high-performance, 4-A, 120-V half-bridge gate driver produced by Texas Instruments. This component is designed to drive two N-channel MOSFETs in high-side and low-side configurations with independent inputs. It is an enhancement of the popular UCC27201 MOSFET drivers, offering significant performance improvements such as increased peak output currents and enhanced robustness. The UCC27211DDAR is suitable for various high-frequency applications, including power supplies, half-bridge and full-bridge converters, and other power management systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Boot Voltage | 120 | V DC |
| Output Currents | 3.7A source, 4.5A sink | A |
| Input Voltage Range | –10V to 20V | V |
| VDD Operating Range | 8V to 17V (20V absolute maximum) | V |
| Rise and Fall Time | 7.2ns rise, 5.5ns fall (with 1000pF load) | ns |
| Propagation Delay Time | 20ns typical | ns |
| Delay Matching | 4ns | ns |
| Operating Temperature Range | –40°C to 150°C | °C |
| Package Options | HSOIC (DDA), SOIC (D), VSON (DRM), WSON (DPR) |
Key Features
- Drives two N-channel MOSFETs in high-side and low-side configuration with independent inputs.
- TTL compatible input versions.
- Input pins can tolerate –10V to 20V and are independent of supply voltage range.
- Symmetrical undervoltage lockout for high-side and low-side drivers.
- On-chip 120V rated bootstrap diode eliminates the need for external discrete diodes.
- Fast propagation delay times and low rise and fall times.
- Enhanced input hysteresis for improved noise immunity.
- Available in various industry-standard packages.
Applications
- Power supplies for telecom and datacom systems.
- Half-bridge and full-bridge converters.
- High-frequency power management systems.
- Driving large power MOSFETs in various power conversion applications.
Q & A
- What is the maximum boot voltage of the UCC27211DDAR?
The maximum boot voltage is 120V DC.
- What are the output current capabilities of the UCC27211DDAR?
The UCC27211DDAR can source up to 3.7A and sink up to 4.5A.
- What is the operating temperature range of the UCC27211DDAR?
The operating temperature range is from –40°C to 150°C.
- What types of input signals does the UCC27211DDAR support?
The UCC27211DDAR supports TTL compatible input signals.
- Does the UCC27211DDAR have built-in undervoltage lockout (UVLO)?
- What is the rise and fall time of the UCC27211DDAR with a 1000pF load?
The rise time is 7.2ns and the fall time is 5.5ns with a 1000pF load.
- What is the typical propagation delay time of the UCC27211DDAR?
The typical propagation delay time is 20ns.
- Does the UCC27211DDAR have an on-chip bootstrap diode?
- What are the available package options for the UCC27211DDAR?
The UCC27211DDAR is available in HSOIC (DDA), SOIC (D), VSON (DRM), and WSON (DPR) packages.
- How does the UCC27211DDAR handle negative voltages caused by parasitic inductance and stray capacitance?
The switching node (HS pin) can handle –(24 – VDD) V maximum, protecting the high-side channel from inherent negative voltages.
