Overview
The UCC27201ADDA is a high-frequency N-channel MOSFET driver produced by Texas Instruments. Although this specific part is no longer in production, it remains a significant component in the UCC2720xA family. This driver is designed to control two N-channel MOSFETs in high-side and low-side configurations, making it versatile for various power conversion applications such as half-bridge, full-bridge, two-switch forward, and active clamp forward converters. The device features independent inputs for maximum control flexibility and includes an on-chip 120V bootstrap diode, eliminating the need for external discrete diodes. It is specified to operate from –40°C to 150°C, enhancing its reliability in diverse environmental conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | HSOIC (DDA) | |
| Pins | 8 | |
| Operating Temperature Range | –40 to 140 | °C |
| Maximum Boot Voltage | 120 | V |
| Maximum VDD Voltage | 20 | V |
| Output Current (Sink/Source) | 3 A | |
| Rise Time | 8 ns | |
| Fall Time | 7 ns | |
| Propagation Delay | 22 ns | |
| Input Threshold | TTL-compatible | |
| Negative Voltage Handling at HS Pin | –18 V | |
| UVLO (Undervoltage Lockout) | Yes, for both high-side and low-side drivers |
Key Features
- Drives two N-channel MOSFETs in high-side and low-side configuration.
- Negative voltage handling on HS pin up to –18V.
- Maximum boot voltage of 120V.
- On-chip 0.65V VF, 0.65Ω RD bootstrap diode, eliminating the need for external discrete diodes.
- High output current capability: 3A sink and 3A source.
- Fast switching times: 8ns rise time and 7ns fall time with a 1000pF load.
- Low propagation delay times: 22ns.
- 1ns delay matching between the turn-on and turn-off of each driver.
- Undervoltage lockout (UVLO) for both high-side and low-side drivers.
- Enhanced ESD input structure for improved performance in noisy power supply environments.
Applications
- Power supplies for telecom, datacom, and merchant markets.
- Half-bridge and full-bridge converters.
- Two-switch forward and active clamp forward converters.
- Isolated bus architecture.
- High-voltage synchronous-buck converters.
- Class-D audio amplifiers.
Q & A
- What is the maximum boot voltage of the UCC27201ADDA?
The maximum boot voltage is 120V.
- What are the operating temperature ranges for the UCC27201ADDA?
The device operates from –40°C to 140°C.
- Does the UCC27201ADDA have undervoltage lockout (UVLO) protection?
- What is the output current capability of the UCC27201ADDA?
The device can sink and source up to 3A of current.
- What type of input thresholds does the UCC27201ADDA have?
The UCC27201ADDA has TTL-compatible input thresholds.
- Can the UCC27201ADDA handle negative voltages on the HS pin?
- What is the propagation delay time of the UCC27201ADDA?
The propagation delay time is 22ns.
- Is the UCC27201ADDA still in production?
No, the UCC27201ADDA is no longer in production.
- What are some common applications for the UCC27201ADDA?
- Does the UCC27201ADDA have an on-chip bootstrap diode?
