UCC27284
Halbbrücken-Gate-Treiber, 3 A, 120 V, mit 5-V-UVLO und Aktivierung
UCC27284
- Drives two N-channel MOSFETs in high-side low-side configuration
- 5-V typical undervoltage lockout
- Enable/disable functionality in DRC package
- 16-ns typical propagation delay
- 12-ns rise, 10-ns fall time with 1.8-nF load
- 1-ns typical delay matching
- 5-V negative voltage handling on inputs
- 14-V negative voltage handling on HS
- ±3-A peak output current
- Absolute maximum boot voltage 120 V
- Low current (7-µA) consumption when disabled
- Integrated bootstrap diode
- Specified from –40°C to 140°C junction temperature
The UCC27284 is a robust N-channel MOSFET driver with a maximum switch node (HS) voltage rating of 100 V. It allows for two N-channel MOSFETs to be controlled in half-bridge or synchronous buck configuration-based topologies. Its 3-A peak source and sink current along with low pull-up and pull-down resistance allows the UCC27284 to drive large power MOSFETs with minimum switching losses during the transition of the MOSFET Miller plateau. Since the inputs are independent of the supply voltage, UCC27284 can be used in conjunction with both analog and digital controllers. Two inputs, and therefore outputs, can be overlapped, if needed, in applications such as secondary side full-bridge synchronous rectification.
The input pins as well as the HS pin are able to tolerate significant negative voltage, which improves system robustness. The enable and disable functionality provides additional system flexibility by reducing the gate driver power consumption and quickly responds to fault events within the system. 5-V UVLO allows systems to operate at lower bias voltages, which is necessary in many high frequency applications and improves system efficiency in certain operating modes. Small propagation delay and delay matching specifications minimize the dead-time requirement which further improves efficiency.
Undervoltage lockout (UVLO) is provided for both the high-side and low-side driver stages forcing the outputs low if the VDD voltage is below the specified threshold. An integrated bootstrap diode eliminates the need for an external discrete diode in many applications, which saves board space and reduces system cost. UCC27284 is offered in a small package enabling high density designs.
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Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | UCC27284 3-A 120-V Half-Bridge Driver with Negative Voltage Handling and Low Switching Losses datasheet (Rev. B) | PDF | HTML | 25 Jan 2022 |
Application note | Challenges and Solutions for Half-Bridge Gate Drivers in Bidirectional DC-DC Converters | PDF | HTML | 24 Jan 2024 | |
Application note | Understanding and comparing peak current capability of gate drivers | PDF | HTML | 30 Mär 2021 | |
More literature | Troubleshooting gate drive circuits in automotive and industrial applications | 23 Mär 2021 | ||
Application note | Implementing High-Side Switches Using Half-Bridge Gate Drivers for 48-V Battery. | 12 Mai 2020 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
UCC27282EVM-335 — UCC27282 120-V-, 3-A-, 5-V-UVLO-Highside-Lowside-Gate-Treiber – Evaluierungsmodul
PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool
TIDA-050022 — Referenzdesign für Leistungsstufen für DC/DC-Wandler mit <100 VIN
PMP4320A — Referenzdesign für DC/DC-Wandler mit 600-W-Half Brick und digitaler Steuerung für Telekommunikations
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
VSON (DRC) | 10 | Ultra Librarian |
VSON (DRM) | 8 | Ultra Librarian |
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