LMG2610
- 650-V GaN power-FET half bridge
- 170-mΩ low-side and 248-mΩ high-side GaN FETs
- Integrated gate drivers with low propagation delays and adjustable turn-on slew-rate control
- Current-sense emulation with high-bandwidth and high accuracy
- Low-side / high-side gate-drive interlock
- High-side gate-drive signal level shifter
- Smart-switched bootstrap diode function
- High-side start up : < 8 us
- Low-side / high-side cycle-by-cycle over-current protection
- Over-temperature protection with FLT pin reporting
- AUX idle quiescent current: 240 µA
- AUX standby quiescent current: 50 µA
- BST idle quiescent current: 60 µA
- Maximum supply and input logic pin voltage: 26 V
- 9x7 mm QFN package with dual thermal pads
The LMG2610 is a 650-V GaN power-FET half bridge intended for < 75-W active-clamp flyback (ACF) converters in switch mode power supply applications. The LMG2610 simplifies design, reduces component count, and reduces board space by integrating half bridge power FETs, gate drivers, bootstrap diode, and high-side gate-drive level shifter in a 9-mm by 7-mm QFN package.
The asymmetric GaN FET resistances are optimized for ACF operating conditions. Programmable turn on slew rates provide EMI and ringing control. The low-side current-sense emulation reduces power dissipation compared to the traditional current-sense resistor and allows the low-side thermal pad to be connected to the cooling PCB power ground.
The high-side gate-drive signal level shifter eliminates noise and burst-mode power dissipation problems found with external solutions. The smart-switched GaN bootstrap FET has no diode forward-voltage drop, avoids overcharging the high-side supply, and has zero reverse-recovery charge.
The LMG2610 supports converter light-load efficiency requirements and burst-mode operation with low quiescent currents and fast start-up times. Protection features include FET turn-on interlock, under-voltage lockout (UVLO), cycle-by-cycle current limit, and over temperature shut down.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LMG2610 Integrated 650-V GaN Half Bridge for Active-Clamp Flyback Converters datasheet (Rev. A) | PDF | HTML | 2022年 12月 12日 |
Application note | Enabling Small-Form-Factor AC/DC Adapters With use of Integrated GaN Technology | PDF | HTML | 2023年 3月 27日 | |
EVM User's guide | Using the UCC28782EVM-030 (Rev. C) | PDF | HTML | 2022年 7月 28日 |
設計與開發
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UCC28782EVM-030 — 具有 ISO7710FD 的 UCC28782 主動鉗位反馳式轉換器 65-W USB-C PD EVM
UCC28782EVM-030 使用 UCC28782 主動鉗位返馳控制器展現 65-W USB Type-C™ 離線適配器的高效率和高密度。輸入支援通用 90 Vac 至 264 Vac,單輸出在最大電流 3-A 時可設爲 5 V、9 V 和 15 V,最大電流 3.25-A 時則為 20 V,可透過 USB PD 介面控制器進行調整。250-kHz 額定的高頻率操作可縮小解決方案尺寸,多模式操作則可維持高效率。LMG2610 整合了高壓側與低壓側 FET、閘極驅動器、高壓側位準移位器,並提供無耗損電流感測模擬。輸出則採用同步整流以提升效率。
TIDA-050074 — 140-W GaN 式 USB PD3.1 USB-C® 變壓器參考設計
PMP23146 — 適用伺服器輔助電源且具 GaN 的 45-W 高功率密度主動箝位返馳參考設計
PMP22244 — 具備 GaN 的 60-W USB Type-C® 高密度主動箝位返馳參考設計
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RRG) | 40 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點