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Texas Instruments LMG3422 | Demoboard PMP41017
LMG342xR030 600V 30mΩ GaN FET With Integrated Driver, Protection, and Temperature Reporting
Overview
| Topology | Half-Bridge Converter symmetrical isolated |
| Input voltage | 340-420 V |
| Output 1 | 12 V / 266 A |
Description
The LMG342xR030 GaN FET with integrated driver and protection is targeted at switch-mode power converters and enables designers to achieve new levels of power density and efficiency.The LMG342xR030 integrates a silicon driver that enables switching speed up to 150V/ns. TI’s integrated precision gate bias results in higher switching SOA compared to discrete silicon gate drivers. This integration, combined with TI's lowinductance package, delivers clean switching and minimal ringing in hard-switching power supply topologies. Adjustable gate drive strength allows control of the slew rate from 20V/ns to 150V/ns, which can be used to actively control EMI and optimize switching performance. The LMG3426R030 includes the zero-voltage detection (ZVD) feature which provides a pulse output from the ZVD pin when zero-voltage switching is realized.
Features
- Qualified for JEDEC JEP180 for hard-switching topologies
- 600V GaN-on-Si FET with integrated gate driver
- Integrated high precision gate bias voltage
- 200V/ns FET hold-off
- 2.2MHz switching frequency
- 20V/ns to 150V/ns slew rate for optimization ofswitching performance and EMI mitigation
- Operates from 7.5V to 18V supply
- Robust protection
- Cycle-by-cycle overcurrent and latched shortcircuit protection with < 100ns response
- Withstands 720V surge while hard-switching
- Self-protection from internal overtemperature and UVLO monitoring
- Advanced power management
- Digital temperature PWM output
- LMG3426R030 includes zero-voltage detection (ZVD) feature that facilitates soft-switching converters
Typical applications
- Merchant network and server PSU, Merchant telecom rectifiers
- Uninterruptible power supplies
- Solar inverters and industrial motor drives
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | fres (MHz) | VOP (V) | Mount | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012205055 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 100 pF | ±10% | 50 | 0402 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 1 | 0.5 | 0.5 | 0.25 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012105010 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | 100 nF | ±20% | 10 | 0402 | -55 °C up to +85 °C | 5 | 5 GΩ | X5R Class II | 1 | 0.5 | 0.5 | 0.25 | 7" Tape & Reel | – | – | – | – | – | – | – | – | -55 °C up to +85 °C | – | – | – | – | ||
 | 860020378023 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG5 Aluminum Electrolytic Capacitors | 3300 µF | ±20% | 16 | – | – | 15 | – | – | 25 | – | – | – | Ammopack | – | – | – | – | – | – | – | 2000 | -40 °C up to +105 °C | 1200 | 528 | 5 | 13 | ||
 | 74438323100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | – | – | – | 2510 | -40 °C up to +125 °C | – | – | – | 2.5 | 2 | 1 | – | – | 10 | 0.9 | 1.7 | 733 | 25 | 80 | SMT | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012205055 | SPEC | |
| 885012105010 | SPEC | |
| 860020378023 | SPEC | |
| 74438323100 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | fres (MHz) | VOP (V) | Mount | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | Samples |
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