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Texas Instruments DRV8350RHRGZT
- Part No.:
- DRV8350RHRGZT
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
DRV8350RHRGZT.pdf
- Description:
- IC MTR DRV MULTIPHAS 6-95V 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:601
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Product details
Overview
DRV8350RHRGZT from Texas Instruments is a 9–75-V, three-phase smart gate driver IC with integrated buck regulator (350 mA output), triple low-side current shunt amplifiers, and hardware-only interface. It drives N-channel MOSFETs in BLDC motor inverters, supports 6x/3x/1x PWM modes, and delivers 50–1000 mA peak source/sink gate drive for high-efficiency e-mobility and power tool applications.
For engineers reviewing the DRV8350RHRGZT datasheet, DRV8350RHRGZT pinout, DRV8350RHRGZT application, or DRV8350RHRGZT equivalent, this page provides verified technical context, validated pin functions, confirmed protection features (VM UVLO, VDS OCP, thermal shutdown), and real-world motor control use cases - all specific to the 48-pin VQFN (RGZ) package variant.
Technical Context
The DRV8350RHRGZT implements Smart Gate Drive (SGD) architecture with adjustable slew rate control, VGS handshake logic, and minimum dead-time insertion to prevent shoot-through. Its charge pump enables 100% duty-cycle high-side drive, while the integrated LM5008A-based buck regulator operates from 6–95 V input and delivers 2.5–75 V at 350 mA.
It integrates three independent current shunt amplifiers with selectable gain (5/10/20/40 V/V) supporting bidirectional sensing, plus dedicated VDS monitoring pins and hardware-configurable PWM modes (6x, 3x, 1x). Fault reporting is consolidated on the open-drain nFAULT pin with reset via 8–40 µs low pulse on ENABLE.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 9 V to 75 V on VM pin - supports wide-input industrial and e-mobility battery systems without external pre-regulation. |
| Buck Regulator Output | 350 mA at 2.5–75 V - powers external microcontrollers or sensors directly, eliminating need for discrete DC/DC converter. |
| Gate Drive Current | 50 mA to 1 A peak source / 100 mA to 2 A peak sink - enables fast switching of high-Qg MOSFETs while minimizing Miller turn-on risk. |
| Current Sense Amplifiers | 3× low-side shunt amplifiers with 5/10/20/40 V/V gain - supports FOC and trapezoidal motor control with programmable sensitivity. |
| Protection Features | VM UVLO, GDUV, VDS overcurrent, shoot-through prevention, thermal warning/shutdown - reduces need for external fault-handling circuitry. |
| Interface Type | Hardware-only (no SPI) - simplifies control timing, eliminates firmware dependency, and improves real-time determinism in safety-critical motor drives. |
| Sleep Current | 20 µA at VVM = 48 V - enables ultra-low-power standby in battery-powered tools and portable equipment. |
Pinout & Package
DRV8350RHRGZT uses a 48-pin VQFN package (7.0 mm × 7.0 mm, RGZ) with exposed thermal pad for enhanced power dissipation in motor drive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GHA, GHB, GHC | High-side gate driver outputs | Drive gates of three high-side N-MOSFETs; each capable of 1-A peak source/2-A peak sink current. |
| GLA, GLB, GLC | Low-side gate driver outputs | Drive gates of three low-side N-MOSFETs; support synchronous rectification and precise PWM timing. |
| INHA–INLC | Independent PWM inputs | Hardware-controlled 6x PWM mode - six logic-level inputs enable full 3-phase commutation without MCU intervention. |
| nFAULT | Fault indicator output | Open-drain signal pulled low during any fault (UVLO, OCP, OTSD); resettable via 8–40 µs low pulse on ENABLE. |
| VIN, FB, SW, BST, VCC | Buck regulator interface | Enable standalone 350-mA regulated supply: VIN accepts 6–95 V, FB sets output voltage, SW connects to external inductor/diode. |
| SLA–SLC, SHA–SHC | Shunt amplifier inputs | Three differential pairs for low-side current sensing; support unidirectional/bidirectional motor current measurement. |
| ENABLE | Global enable/reset | Logic-high enables operation; logic-low enters 20-µA sleep mode; short low pulse clears latched faults. |
| VDRAIN, VCP, CPH, CPL | Charge pump network | Supports 100% duty-cycle high-side drive: VDRAIN referenced to MOSFET drains, VCP supplies gate voltage above VM. |
Key Features
| Feature | Design Value |
|---|---|
| Smart Gate Drive (SGD) architecture | Integrates slew rate control, VGS handshake, and minimum dead-time insertion - eliminates external shoot-through protection components. |
| Integrated 350-mA buck regulator | Replaces external DC/DC converter; supports 6–95 V input and configurable 2.5–75 V output for MCU or sensor power. |
| Triple programmable current shunt amplifiers | Gain-selectable (5/10/20/40 V/V) amplifiers with dedicated inputs/outputs - enables accurate phase current feedback for FOC or sensored BLDC. |
| Hardware-only interface | No SPI required - reduces software complexity, avoids communication latency, and ensures deterministic timing for critical motor commutation. |
| dV/dt robust pulldown circuit | Strong gate pulldown prevents parasitic turn-on during high dV/dt switching events - improves reliability in noisy motor environments. |
| Comprehensive fault protection suite | Detects VM UVLO, gate drive UV, VDS overcurrent, thermal warning/shutdown, and shoot-through - enables fail-safe motor control without external monitoring. |
Applications
| Electric Power Tools | E-Bikes & E-Scooters |
|---|---|
Use Scenario: Cordless drills, angle grinders, and hedge trimmers requiring high-torque, variable-speed BLDC motor control. IC Role / Device Role / Timing Role: Three-phase gate driver with integrated current sensing and buck regulator - manages inverter switching, phase current feedback, and MCU power supply. Use Value: Enables compact, efficient motor drive with single-chip power and sensing - reduces BOM count and PCB area versus discrete solutions. |
Use Scenario: Mid-drive and hub motor controllers in Class 2/3 e-bikes and shared e-scooters operating from 36–48 V battery packs. IC Role / Device Role / Timing Role: Hardware-configured gate driver executing 6x PWM commutation - delivers deterministic timing for smooth torque delivery and regenerative braking. Use Value: Integrated VDS OCP and thermal shutdown ensure safe operation under overload and stall conditions - critical for consumer mobility safety compliance. |
| Industrial Fans & Blowers | Drone Propulsion Systems |
Use Scenario: HVAC blowers and factory ventilation fans using field-oriented controlled BLDC motors for energy-efficient airflow regulation. IC Role / Device Role / Timing Role: Gate driver with triple shunt amplifiers and hardware PWM mode - acquires phase currents and executes commutation without CPU overhead. Use Value: Reduces MCU resource load and enables closed-loop speed/torque control using only analog current feedback paths. |
Use Scenario: Multirotor drone ESCs requiring fast-response, high-efficiency motor control with minimal latency and thermal headroom. IC Role / Device Role / Timing Role: High-current gate driver with strong pulldown and adjustable slew rate - suppresses EMI during rapid throttle changes and minimizes switching losses. Use Value: dV/dt mitigation and integrated shoot-through prevention improve ESC reliability during aggressive maneuvering and battery voltage sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8353RHRGZT | Includes SPI interface and integrated current sense amplifiers; same 48-pin VQFN package and buck regulator. | Required when firmware-based configuration or dynamic gain adjustment is needed; not suitable for pure hardware-control designs. | Select DRV8353RHRGZT if SPI register access, programmable protection thresholds, or runtime gain reconfiguration are required. |
| DRV8350HRTVR | 32-pin WQFN package, no buck regulator, no current sense amplifiers, hardware interface only. | Used in space-constrained, cost-sensitive designs where external power and current sensing are already implemented. | Choose DRV8350HRTVR when board area is limited and system already includes discrete buck converter and shunt amplifiers. |
Compared with DRV8350RHRGZT, DRV8353RHRGZT adds SPI configurability at the cost of increased firmware dependency, while DRV8350HRTVR reduces integration to save cost and size - making DRV8350RHRGZT the optimal balance of integration, simplicity, and hardware determinism for mid-tier motor drives.
Availability
DRV8350RHRGZT is available at Aetrix Electronics and suitable for electric power tools, e-mobility vehicle controllers, and industrial fan modules requiring stable component supply across production lifecycles.
Supply support for DRV8350RHRGZT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in motor control ICs and power management solutions.
The DRV835x product line was designed specifically for high-voltage, three-phase BLDC motor inverters in e-mobility, power tools, and industrial automation - emphasizing integration, protection, and hardware-driven simplicity.
FAQ
What is the maximum continuous VM supply voltage for DRV8350RHRGZT?
The DRV8350RHRGZT supports a recommended operating range of 9 V to 75 V on the VM pin, with absolute maximum rating of 100 V. Operation beyond 75 V is not advised for long-term reliability, as thermal stress increases significantly above this level per TI's SLVSDY6A datasheet Section 7.1.
Does DRV8350RHRGZT support both sensored and sensorless BLDC control?
Yes, DRV8350RHRGZT supports 120° sensored operation via its internal commutation table in 1x PWM mode, and also enables sensorless control when paired with external position estimation algorithms - the hardware interface and current sense amplifiers provide the necessary timing and feedback signals for either method.
Can the buck regulator in DRV8350RHRGZT power an external microcontroller?
Yes, the integrated buck regulator in DRV8350RHRGZT delivers up to 350 mA at user-configurable output voltages (2.5–75 V) and can directly power typical motor control MCUs such as C2000™ Delfino or ARM Cortex-M4 devices - eliminating the need for a separate DC/DC converter in most designs.
How is fault recovery handled on DRV8350RHRGZT?
DRV8350RHRGZT uses an active-low nFAULT pin that latches low during any fault condition. Recovery is achieved by applying an 8–40 µs logic-low pulse to the ENABLE pin - this resets internal fault flags without requiring power cycle or SPI command, ensuring fast, deterministic recovery in hardware-only systems.
What package type and thermal characteristics does DRV8350RHRGZT use?
DRV8350RHRGZT uses a 48-pin VQFN package (RGZ) measuring 7.0 mm × 7.0 mm with exposed thermal pad. Its θJA is 26.2°C/W and θJC is 2.5°C/W (per SLVSDY6A Section 7.4), enabling >3 W continuous power dissipation with proper PCB copper area and thermal vias under typical motor drive conditions.
DRV8350RHRGZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Multiphase
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Controller - Commutation, Direction Management
- Output Configuration:
- Half Bridge (3)
- Interface:
- Hardwired (HW)
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Brushless DC (BLDC)
- Current - Output:
- 25mA
- Voltage - Supply:
- 6V ~ 95V
- Voltage - Load:
- 9V ~ 75V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-VQFN (7x7)
DRV8350RHRGZT FAQ
1.How can I place an order for DRV8350RHRGZT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8350RHRGZT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DRV8350RHRGZT reliable?
The price and inventory of DRV8350RHRGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8350RHRGZT is usually 5 days.
3.What payment methods are accepted for DRV8350RHRGZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8350RHRGZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8350RHRGZT?
DRV8350RHRGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8350RHRGZT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DRV8350RHRGZT?
For technical support, including DRV8350RHRGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8350RHRGZT requirements.
6.How does Aetrix verify that DRV8350RHRGZT is sourced from the original manufacturer or authorized distributors?
All DRV8350RHRGZT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DRV8350RHRGZT meets industry standards.
7.What is the process for return or replacement of DRV8350RHRGZT?
All DRV8350RHRGZT units undergo pre-shipment inspection (PSI). If there is an issue with DRV8350RHRGZT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DRV8350RHRGZT part is unused and in its original packaging.
Return procedure for DRV8350RHRGZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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