Calculation tool
DRV7308-THERMAL-CALC — Thermal calculator for the DRV7308 to estimate power loss and device temp
Thermal calculator for the DRV7308 to estimate power loss and device temperature
DRV7308
650V, 205mΩ 3-phase integrated GaN intelligent power module (IPM) with protection and current sense
Data sheet
DRV7308
- Three-phase PWM motor driver with integrated 650V enhancement mode GaN FETs
- Up to 450V operating voltage
- 650V absolute maximum voltage
- High output current capability: 5A Peak current
- Low conduction loss: Low on-state resistance per GaN FET: 205mΩ RDS(ON) at TA = 25°C
- Low switching loss: Zero reverse recovery, low output capacitance, slew rate control
- Low distortion: Ultra-low propagation delay < 135ns, Ultra-low adaptive dead time < 200ns
- Integrated gate drives with slew rate control of phase node voltage
- Slew rate options from 5V/ns to 40V/ns
- Integrated fast bootstrap GaN rectifier
- Low-side GaN FET open source pins to support 1- or 2- or 3-shunt current sensing
- Supports up to 100kHz hard switching
- Integrates an amplifier for current sensing
- Supports 3.3V and 5V logic inputs, up to 20V
- BRAKE pin to turn on all low side GaN FETs
- Integrated temperature sensor
- >1.6mm clearance of motor phase (OUTx) to the adjacent pins.
- 2mm clearance between VM and GND
- Integrated protection features
- GVDD and bootstrap under voltage lockout
- Over current protection for low-side GaN FET
- Over temperature protection
- PWM adaptive dead time insertion
- Current limit protection for all three phases
- Fault condition indication pin (nFAULT)
The DRV7308 is a three-phase intelligent power module (IPM) that consists of 205mΩ, 650V e-mode Gallium-Nitride (GaN) for driving three-phase BLDC/PMSM motors up to 450V DC rails. The applications include field-oriented control (FOC), sinusoidal current control, and trapezoidal (six step) current control of BLDC motors. The device helps to achieve more than 99% efficiency for a 3-phase modulated, FOC-driven, 250W motor drive application in a QFN 12mm x 12mm package at 20kHz switching frequency, eliminating the need for heat sink. The device helps to achieve ultra quiet operation, with very low dead time. The integrated bootstrap rectifier with bootstrap current limit eliminates the need for an external bootstrap diode.
Technical documentation
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Evaluation board
DRV7308EVM — DRV7308 evaluation module
The DRV7308EVM is a module designed for thorough evaluation of the DRV7308 motor driver. The device is a 250W, 450V integrated triple gallium nitride (GaN) FET half-bridge gate driver for motor driver applications. The DRV7308EVM provides three 650V E-mode GaN FET half-bridges capable of directly (...)
User guide: PDF
Certification
DRV7308EVM-CERT — Declaration of Conformity compliance certification for DRV7308EVM
Declaration of Conformity (DoC) compliance certification for the DRV7308EVM
Supported products & hardware
Products
Gallium nitride (GaN) intelligent power modules (IPMs)
Hardware development
Evaluation board
Reference designs
TIDA-010273 — 250W motor inverter reference design
This reference design is a 250W motor drive for a major appliances or similar applications, which illustrates a GaN IPM DRV7308 based high efficiency motor inverter without heatsink, also demo a low standby power design with UCC28911. This reference design shows a method to implement sensorless FOC (...)
Design guide: PDF
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (REN) | 68 | Ultra Librarian |
| VQFN (REN) | 65 | Ultra Librarian |
Ordering & quality
Information included:
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Information included:
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