TPS28225
- Drives Two N-Channel MOSFETs with 14ns Adaptive Dead Time
- Wide Gate Drive Voltage: 4.5V Up to 8.8V With Best Efficiency at 7V to 8V
- Wide Power System Train Input Voltage: 3V Up to 27V
- Wide Input PWM Signals: 2.0V up to 13.2V Amplitude
- Capable to Drive MOSFETs with ≥40A Current per Phase
- High Frequency Operation: 14ns Propagation Delay and 10ns Rise/Fall Time Allow FSW – 2MHz
- Capable to Propagate <30ns Input PWM Pulses
- Low-Side Driver Sink On-Resistance (0.4Ω) Prevents dV/dT Related Shoot-Through Current
- 3-State PWM Input for Power Stage Shutdown
- Space Saving Enable (Input) and Power Good (Output) Signals on Same Pin
- Thermal Shutdown
- UVLO Protection
- Internal Bootstrap Diode
- Economical SOIC-8 and Thermally Enhanced 3mm x 3mm VSON-8 Packages
- High Performance Replacement for Popular 3-State Input Drivers
The TPS28225 is a high-speed driver for N-channel complimentary driven power MOSFETs with adaptive dead-time control. This driver is optimized for use in variety of high-current one and multi-phase DC-to-DC converters. The TPS28225 is a solution that provides high efficiency, small size and low EMI emissions.
The efficiency is achieved by up to 8.8V gate drive voltage, 14ns adaptive dead-time control, 14ns propagation delays and high-current 2A source and 4A sink drive capability. The 0.4Ω impedance for the lower gate driver holds the gate of power MOSFET below its threshold and ensures no shoot-through current at high dV/dt phase node transitions. The bootstrap capacitor charged by an internal diode allows use of N-channel MOSFETs in a half-bridge configuration.
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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 | TPS28225 High-Frequency 4A Sink Synchronous MOSFET Driver datasheet (Rev. E) | PDF | HTML | 2024/1/19 | ||
| 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 | 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 | |||
| Application brief | External Gate Resistor Selection Guide (Rev. A) | 2020/2/28 | ||||
| Application brief | Understanding Peak IOH and IOL Currents (Rev. A) | 2020/2/28 | ||||
| 更多文件說明 | Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) | 2018/10/29 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 更多文件說明 | Power Loss Calculation for Sync Buck Converter | 2007/2/14 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
訂購與品質
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