LMG1205
- Independent high-side and low-side TTL logic inputs
- 1.2-A peak source, 5-A sink current
- High-side floating bias voltage rail operates up to 100 VDC
- Internal bootstrap supply voltage clamping
- Split outputs for adjustable turnon, turnoff strength
- 0.6-Ω pulldown, 2.1-Ω pullup resistance
- Fast propagation times (35 ns typical)
- Excellent propagation delay matching (1.5 ns typical)
- Supply rail undervoltage lockout
- Low power consumption
The LMG1205 is designed to drive both the high-side and the low-side enhancement mode Gallium Nitride (GaN) FETs in a synchronous buck, boost, or half-bridge configuration. The device has an integrated 100-V bootstrap diode and independent inputs for the high-side and low-side outputs for maximum control flexibility. The high-side bias voltage is generated using a bootstrap technique and is internally clamped at 5 V, which prevents the gate voltage from exceeding the maximum gate-source voltage rating of enhancement mode GaN FETs. The inputs of the LMG1205 are TTL logic compatible and can withstand input voltages up to 14 V regardless of the VDD voltage. The LMG1205 has split-gate outputs, providing flexibility to adjust the turnon and turnoff strength independently.
In addition, the strong sink capability of the LMG1205 maintains the gate in the low state, preventing unintended turnon during switching. The LMG1205 can operate up to several MHz. The LMG1205 is available in a 12-pin DSBGA package that offers a compact footprint and minimized package inductance.
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LMG1205HBEVM — LMG1205 GaN 功率級評估模組
80V 10A 功率級 EVM - LMG1205 半橋 EVM 電路板是小型且易用的功率級,具外部 PWM 訊號。此 EVM 適用於評估許多不同 DC-DC 轉換器拓撲中 LMG1205 驅動 GaN 半橋的性能。可用於評估半橋的性能以測量效率。此模組可提供最大電流為 10A。然而,應遵循適當的散熱管理(強制通風,低頻率運作等),以確保不超過板載元件的最高操作溫度規格。EVM 屬於開迴路電路板,不適合進行瞬態量測。
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFX) | 12 | Ultra Librarian |
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