48 V three-phase GaN inverter with in-line shunt phase-current sensing (INA240)
← All reference designs · Vendor page: TI TIDA-00913
| Hardware | orderable |
|---|---|
| Status | active |
| Application | motor-drive, robotics |
| Semiconductors | GaN |
| Key devices | LMG5200, INA240, F28069M (InstaSPIN-FOC example) |
| Deliverables | schematic, bom, layout, firmware, design-guide, test-report |
| Motor type | bldc, pmsm |
| DC bus | 12–60 V DC |
| Phase current (A rms) | 7 |
| Phase current peak (A) | 10 |
| Power stage | gan-power-stage |
| Topology | 2l-vsi |
| Control | foc |
| Current sensing | inline |
| PWM max (kHz) | 100 |
| Controller | C2000 LaunchPad (BoosterPack interface) |
| Last verified | 2026-10-21 |
Notes
Why it is interesting: in-line (phase) shunts see the full switch-node common-mode swing at GaN dv/dt. The INA240’s enhanced PWM rejection is what makes non-isolated in-line sensing work here. It uses a 5 mΩ shunt with ±16.5 A full scale (1.65 V mid-rail, 3.3 V ADC); vendor-claimed accuracy is < ±0.5 % uncalibrated and < ±0.1 % calibrated over −25 to 85 °C.
Orderable as BOOSTXL-3PHGANINV. A newer sibling, TIDA-010936, uses the INA241A with a 1 mΩ shunt and ±33 A range.
Tags: enhanced-pwm-rejection · 5-mohm-inline-shunt · boosterpack · servo