LMG3522R030RQSR - 650V 30mΩ GaN FET with Integrated Driver | TI
MPN: LMG3522R030RQSR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.6 | $13.60 |
| 10 | $12.24 | $122.40 |
| 100 | $10.88 | $1,088.00 |
| 500 | $9.52 | $4,760.00 |
| 1,000 | $8.16 | $8,160.00 |
Drop-in alternatives for LMG3522R030RQSR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LMG3522R030QRQSRQ1
✅ Drop-In📋 Reference alternative (not in catalog)
LMG3522R050RQSR
✅ Drop-In📋 Reference alternative (not in catalog)
LMG3526R030RQSR
✅ Drop-In📋 Reference alternative (not in catalog)
LMG3522R030QRQSTQ1
✅ Drop-In📋 Reference alternative (not in catalog)
LMG3522R030RQSR Maximum Ratings & Electrical Characteristics
| Drain-Source Voltage (VDS) | 650 V |
| RDS(on) (Typical) | 30 mΩ |
| Continuous Drain Current (ID) | 55 A |
| Pulsed Drain Current (IDM) | [DATA_NEEDED: Pulsed drain current] |
| Gate-Source Voltage (VGS) | [DATA_NEEDED: Gate-source voltage range] |
| Integrated Driver | Yes (half-bridge) |
| Protection Features | Overcurrent, overtemperature, temperature reporting |
| Package | 52-VQFN (12x12 mm) Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature Range | [DATA_NEEDED: Operating temperature range] |
| Automotive Grade | Available (Q1 variant, AEC-Q100) |
| RoHS Status | Compliant |
| MSL Level | [DATA_NEEDED: MSL level] |
| Thermal Resistance (Junction-to-Ambient) | [DATA_NEEDED: Thermal resistance] |
| Switching Frequency | [DATA_NEEDED: Maximum switching frequency] |
LMG3522R030RQSR Pin Configuration
| Pin 1 | VCC — Power supply for internal driver |
| Pin 2 | BST — Bootstrap pin for high-side driver |
| Pin 3 | HB — High-side bridge output |
| Pin 4 | LB — Low-side bridge output |
| Pin 5 | GND — Ground |
| Pin 6 | PWM — PWM input for driver |
| Pin 7 | EN — Enable pin |
| Pin 8 | TEMP — Temperature reporting output |
| Pin 9 | OC — Overcurrent protection flag |
| Pin 10 | VIN — Input voltage sense |
| Pin 11 | PGND — Power ground |
| Pin 12 | EP — Exposed pad for thermal dissipation |
Safe Operating Area
Typical Applications
LMG3522R030RQSR is suitable for 6 applications: Totem-Pole PFC, LLC Resonant Converter, Server Power Supply, Solar Inverter, Electric Vehicle Onboard Charger, Telecom Rectifier.
Totem-Pole PFC
The LMG3522R030's 650-V rating and 30-mΩ RDS(on) enable high-efficiency totem-pole PFC stages. Its integrated driver simplifies the half-bridge configuration, and the low Qrr of GaN reduces reverse recovery losses. Operating at high frequencies (100-200 kHz) allows smaller magnetics, improving power density. The device's overcurrent protection ensures robust operation in demanding AC-DC converters.
Recommended
LLC Resonant Converter
In LLC converters, the LMG3522R030's integrated half-bridge driver reduces component count and layout parasitics. Its fast switching capability (up to 1 MHz) enables high-frequency operation, shrinking transformer size. The device's temperature reporting allows real-time thermal management, enhancing reliability in server and telecom power supplies. The 55-A current rating supports high-power outputs.
Recommended
Server Power Supply
The LMG3522R030 is ideal for server power supplies requiring high efficiency and power density. Its 650-V rating suits 400-V bus architectures, and the 30-mΩ RDS(on) minimizes conduction losses. The integrated driver and protection features reduce external components, saving board space. The device's high switching frequency enables compact magnetics, meeting 80+ Titanium efficiency standards.
Recommended
Solar Inverter
For solar inverters, the LMG3522R030's high efficiency and reliability are critical. Its 650-V rating handles typical DC bus voltages, and the low RDS(on) reduces losses in MPPT and inverter stages. The integrated driver simplifies design, and the temperature reporting aids in thermal management. The device's robustness under hard-switching conditions makes it suitable for harsh outdoor environments.
Recommended
Electric Vehicle Onboard Charger
The LMG3522R030-Q1 automotive variant is designed for onboard chargers in EVs. Its AEC-Q100 qualification ensures reliability in automotive environments. The 650-V rating supports 400-V battery systems, and the 30-mΩ RDS(on) enables high-efficiency AC-DC conversion. The integrated driver and protection features reduce BOM cost and improve system robustness.
Recommended
Telecom Rectifier
In telecom rectifiers, the LMG3522R030's high efficiency reduces cooling requirements and operating costs. Its 650-V rating is suitable for 3-phase rectification, and the low RDS(on) minimizes losses. The integrated driver simplifies the half-bridge topology, and the device's high switching frequency allows compact filter components. The temperature reporting feature enables predictive maintenance.
Recommended
Recommended Products Summary
Engineering reference data for LMG3522R030RQSR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LMG3522R030QRQSRQ1 | LMG3522R050RQSR | LMG3526R030RQSR |
|---|---|---|---|---|
| Package | 52-VQFN (12x12) | 52-VQFN (12x12) | 52-VQFN (12x12) | 52-VQFN (12x12) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| VDS (V) | 650 | 650 | 650 | 650 |
| RDS(on) (mΩ) | 30 | 30 | 50 | 30 |
| Continuous Current (A) | 55 | 55 | 32 | 55 |
| Automotive Grade | No | Yes (AEC-Q100) | No | No |
| Zero Voltage Reporting | No | No | No | Yes |
| Price (1pc) | $13.60 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Lower RDS(on) than LMG3522R050 (vs LMG3522R050RQSR)
- Automotive grade option available (vs LMG3522R030RQSR (standard))
- Integrated driver simplifies design (vs Discrete GaN FET + driver solution)
Design Notes
For the LMG3522R030, minimize the gate drive loop inductance by placing the driver and GaN FET close together. Use a 4-layer PCB with a dedicated ground plane. Place 100-nF decoupling capacitors close to the VCC and BST pins. The exposed pad must be soldered to a large copper pour for thermal management.
The LMG3522R030 can dissipate significant power at high currents. Ensure adequate thermal vias under the exposed pad to transfer heat to the PCB. For 55-A operation, a heatsink or forced airflow may be required. Monitor the temperature reporting pin to prevent overtemperature shutdown.
Do not exceed the absolute maximum VDS of 650 V. Ensure proper dead-time control to prevent shoot-through in half-bridge configurations. The integrated driver requires a bootstrap capacitor for high-side operation; select a capacitor with low ESR and adequate voltage rating. Verify the PWM input logic levels match the driver's specifications.
Compliance Information
RoHS compliant per TI product page. Automotive grade available in Q1 variant.
