計算工具
UCC27211A
- –40°C to +150°C junction temperature range
- Drives two N-channel MOSFETs in high-side and low-side configuration with independent inputs
- Maximum boot voltage 120V DC
- 3.7A source, 4.5A sink output currents
- Input pins can tolerate –10V to +20V and are independent of supply voltage range
- TTL compatible inputs
- 8V to 17V VDD operating range, (20V ABS MAX)
- 7.2ns rise and 5.5ns fall time with 1000pF load
- Fast propagation delay times (20ns typical)
- 4ns delay matching
- Symmetrical undervoltage lockout for high-side and low-side driver
- Industry standard package available
- 4mm × 4mm SON-8
The UCC27211A device driver is based on the popular UCC27201 MOSFET drivers; but, this device offers several significant performance improvements.
The peak output pullup and pulldown current has been increased to 3.7A source and 4.5A sink and thereby allows for driving large power MOSFETs with minimized switching losses during the transition through the Miller Plateau of the MOSFET. The input structure can directly handle –10VDC, which increases robustness and also allows direct interface to gate-drive transformers without using rectification diodes. The inputs are also independent of supply voltage and have a 20V maximum rating.
The switching node of the UCC27211A (HS pin) can handle –(24 - VDD) V maximum, which allows the high-side channel to be protected from inherent negative voltages caused by parasitic inductance and stray capacitance. The UCC27211A (TTL inputs) has increased hysteresis that allows for interface to analog or digital PWM controllers with enhanced noise immunity.
The low-side and high-side gate drivers are independently controlled and matched to 4ns between the turn on and turn off of each other. An on-chip 120V rated bootstrap diode eliminates the external discrete diodes. Undervoltage lockout is provided for both the high-side and the low-side drivers which provides symmetric turn on and turn off behavior and forces the outputs low if the drive voltage is below the specified threshold.
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檢視所有 9 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UCC27211A 120V, 3.7A/4.5A Half-Bridge Driver with 8V UVLO datasheet (Rev. D) | PDF | HTML | 2024年 7月 18日 |
| Application note | Challenges and Solutions for Half-Bridge Gate Drivers in Bidirectional DC-DC Converters | PDF | HTML | 2024年 1月 24日 | |
| Technical article | For efficiencies’ sake – how to integrate bidirectional power flow into your UPS design (part 1) | PDF | HTML | 2024年 1月 11日 | |
| Application note | Understanding and comparing peak current capability of gate drivers | PDF | HTML | 2021年 3月 30日 | |
| Application brief | External Gate Resistor Selection Guide (Rev. A) | 2020年 2月 28日 | ||
| Application brief | Understanding Peak IOH and IOL Currents (Rev. A) | 2020年 2月 28日 | ||
| White paper | Power Electronics in Motor Drives: Where is it? (Rev. A) | 2019年 10月 1日 | ||
| More literature | Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) | 2018年 10月 29日 | ||
| Technical article | How to achieve higher system efficiency- part one: high-current gate drivers | PDF | HTML | 2016年 11月 16日 |
設計與開發
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模擬工具
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRM) | 8 | Ultra Librarian |
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