UCC27884
- Dual independent inputs for high-side and low-side drivers with interlock (UCC27834) or no interlock (UCC27884)
- Maximum bootstrap voltage: +230V (HB pin)
- VDD bias recommended range: 8.5V to 20V
- Peak output current: 3.5A source, 4A sink
- Fast propagation delay: 29ns typical
- Tight propagation delay matching between HO/LO: <5ns maximum
- dV/dt immunity: 100V/ns
- Low quiescent supply current
draw
- 150µA (typical) on VDD
- 90µA (typical) on HB
- Built-in UVLO protection for both high and low side channels: 8V
- Floating channel designed for bootstrap operation
- Available in standard SOIC-8 package
- All parameters specified over temperature range: –40°C to +150°C
The UCC278X4 is a 230V half-bridge gate driver with 3.5A source, 4A sink current, targeted to drive power MOSFETs. The device consists of one ground-referenced channel (LO) and one floating channel (HO) which is designed to drive half-bridge configured MOSFETs operating with bootstrap power supplies. The device features fast propagation delays and excellent delay matching between both channels. The UCC278X4 allows a wide VDD operating voltage of 8.5V to 20V to support a wider range of gate voltage drive, as well as UVLO protection for both the low-side (VDD) and the high-side (HB) bias supplies. The UCC27834 includes an interlock function option to prevent both outputs from being turned on simultaneously
The device features robust drive with excellent noise and transient immunity including high dV/dt tolerance (100V/ns), and wide negative transient safe operating area (NTSOA) on the switch node (HS). The UCC278X4 is available in the SOIC-8 pin package and is rated to operate from –40°C to 150°C.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | UCC278X4 High-Speed, 230V Half-Bridge Driver with 3.5A, 4A Drive Strength and up to 100V/ns Noise Immunity datasheet (Rev. A) | PDF | HTML | 2025/11/18 | ||
| 應用說明 | Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET | PDF | HTML | 2024/3/25 | |||
| 應用說明 | Challenges and Solutions for Half-Bridge Gate Drivers in Bidirectional DC-DC Converters | PDF | HTML | 2024/1/24 | |||
| 應用說明 | Review of Different Power Factor Correction (PFC) Topologies' Gate Driver Needs | PDF | HTML | 2024/1/22 | |||
| 應用說明 | Bootstrap Circuitry Selection for Half Bridge Configurations (Rev. A) | PDF | HTML | 2023/9/8 | |||
| 應用說明 | Comparative Analysis of Two Different Methods for Gate-Drive Current Boosting (Rev. A) | PDF | HTML | 2022/2/17 | |||
| 應用說明 | Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) | 2021/4/7 | ||||
| 應用說明 | Implementing High-Side Switches Using Half-Bridge Gate Drivers for 48-V Battery. | 2020/5/12 | ||||
| Application brief | External Gate Resistor Selection Guide (Rev. A) | 2020/2/28 |
設計與開發
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UCC27288EVM — UCC27288 100-V、3-A、8-V UVLO 半橋閘極驅動器評估模組
UCC278X4-CALC — UCC278x4 Schematic Review Template
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |