LMG1205
Halbbrücken-Gate-Treiber, 1,2 A, 5 A, 90 V, mit 5-V-UVLO für GaNFET und MOSFET
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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Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | LMG1205 100-V, 1.2-A to 5-A, Half Bridge GaN Driver with Integrated Bootstrap Diode datasheet (Rev. B) | PDF | HTML | 14 Apr 2023 |
Application note | Implementing Bootstrap Overcharge Prevention in GaN Half-bridge Circuits | PDF | HTML | 15 Nov 2023 | |
Application brief | Key Parameters and Driving Requirements of GaN FETs | PDF | HTML | 04 Aug 2022 | |
Application brief | Nomenclature, Types, and Structure of GaN Transistors | PDF | HTML | 04 Aug 2022 | |
Application brief | How GaN Enables More Efficient and Reduced Form Factor Power Supplies | PDF | HTML | 02 Aug 2022 | |
Application brief | External Gate Resistor Selection Guide (Rev. A) | 28 Feb 2020 | ||
Application brief | Understanding Peak IOH and IOL Currents (Rev. A) | 28 Feb 2020 | ||
White paper | Optimizing multi-megahertz GaN driver design white paper (Rev. A) | 27 Nov 2018 | ||
EVM User's guide | Using the LMG1205HBEVM | 22 Mär 2017 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
LMG1205HBEVM — Evaluierungsmodul für LMG1205 GaN-Leistungsstufe
80-V 10A Power Stage EVM - The LMG1205 half-bridge EVM board is a small, easy to use, power stage with an external PWM signal. The EVM is suitable for evaluating the performance of the LMG1205 driving a GaN half-bridge in many different DC-DC converter topologies. It can be used to estimate the (...)
LMG1205 TINA-TI Reference Design (Rev. A)
LMG1205 TINA-TI Transient Spice Model (Rev. A)
PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
DSBGA (YFX) | 12 | Ultra Librarian |
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