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Texas Instruments DRV8350RSRGZT
- Part No.:
- DRV8350RSRGZT
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
DRV8350RSRGZT.pdf
- Description:
- IC MTR DRV MULTIPHAS 6-95V 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:676
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Product details
Overview
DRV8350RSRGZT from Texas Instruments is a 9–75-V, three-phase smart gate driver IC with integrated triple current shunt amplifiers, buck regulator (350 mA output), and SPI interface. It drives N-channel MOSFETs in BLDC motor inverters, supports 6x/3x/1x PWM modes, and implements VGS handshake, adjustable slew rate, and shoot-through prevention for field-oriented control in e-mobility and power tools.
For engineers reviewing the DRV8350RSRGZT datasheet, DRV8350RSRGZT pinout, DRV8350RSRGZT application, or DRV8350RSRGZT equivalent, this page delivers verified technical context, real-world motor control use cases, validated alternative parts, and supply-ready procurement details - all grounded in TI's SLVSDY6A production datasheet.
Technical Context
The DRV8350RSRGZT implements smart gate drive (SGD) architecture with programmable peak source/sink currents (50 mA–1 A / 100 mA–2 A), dV/dt mitigation via strong pulldown, and hardware-enforced minimum dead time. Its integrated LM5008A buck regulator operates from 6–95 V input and delivers 2.5–75 V at 350 mA for external controller or gate bias supply.
It integrates three independent current shunt amplifiers with selectable gain (5/10/20/40 V/V), bidirectional/unidirectional support, and dedicated SNA/SNB/SNC inputs plus SOA/SOB/SOC outputs. The device uses a 48-pin VQFN (7 mm × 7 mm) package with exposed thermal pad and supports both SPI and hardware control modes - with SPI enabled on DRV8350RS variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 9–75 V on VM pin; enables direct integration into 24–72-V battery systems without external pre-regulation. |
| Buck Regulator Output | 350 mA at 2.5–75 V; powers external microcontrollers or sensors, reducing BOM count and layout complexity. |
| Gate Drive Current | 50 mA–1 A source / 100 mA–2 A sink; supports fast switching of high-Qg MOSFETs while minimizing Miller-induced shoot-through risk. |
| Current Sense Amplifiers | Triple independent shunt amps with 5/10/20/40 V/V gain; enables precise phase current measurement for FOC or trapezoidal commutation. |
| Fault Protection | VM UVLO, GDUV, VDS overcurrent, thermal warning/shutdown, and shoot-through prevention; reduces need for external monitoring circuitry. |
| SPI Interface | Full-duplex serial interface with nSCS, SCLK, SDI, SDO pins; allows real-time register configuration and fault status readback. |
| Package | VQFN-48 (7.0 mm × 7.0 mm, 0.5-mm pitch) with exposed thermal pad; supports high-power dissipation in compact motor control modules. |
Pinout & Package
VQFN-48 package (7.0 mm × 7.0 mm, 0.5-mm pitch) with exposed thermal pad for enhanced thermal performance in high-current 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 features VGS handshake and strong pulldown to prevent parasitic turn-on. |
| GLA, GLB, GLC | Low-side gate driver outputs | Drive gates of three low-side N-MOSFETs; synchronized with high-side outputs under configurable dead-time control. |
| INHA–INLC | PWM input controls | Direct hardware control inputs for six-channel PWM; supports 6x, 3x, 1x, and independent modes without SPI overhead. |
| nSCS, SCLK, SDI, SDO | SPI interface signals | Enable full register access for diagnostics, gain setting, fault masking, and dynamic parameter adjustment in closed-loop systems. |
| SHA–SHC, SLA–SLC | Current sense inputs | Connect to high-side and low-side MOSFET sources for differential shunt amplifier inputs; support bidirectional current sensing. |
| FB, VIN, SW, BST, VCC | Buck regulator interface | Configure and power integrated 350-mA buck; FB sets output voltage via resistor divider; VIN accepts up to 95 V input. |
| nFAULT | Open-drain fault indicator | Asserts low during VM UVLO, OCP, OTSD, or shoot-through; requires external pull-up and can reset faults via ENABLE pulse. |
Key Features
| Feature | Design Value |
|---|---|
| Smart Gate Drive (SGD) Architecture | Hardware-enforced minimum dead time + VGS handshake prevents shoot-through without software timing margins. |
| Adjustable Slew Rate Control | Reduces EMI by limiting dV/dt on gate nodes - critical for passing CISPR-25 Class 5 in automotive-grade motor modules. |
| Integrated Triple Shunt Amplifiers | Eliminates need for three external op-amps and precision resistors; gain selection via single resistor per channel. |
| Configurable PWM Modes | 1x mode enables simple sensored trapezoidal control using internal commutation table - reduces MCU GPIO usage by 50%. |
| Low-Power Sleep Mode | 20 µA quiescent current at 48-V VM; extends battery life in idle or standby states for portable e-mobility applications. |
Applications
| Electric Power Tools | E-Bikes & E-Scooters |
|---|---|
Use Scenario: Cordless drill or angle grinder with 36–72-V Li-ion battery pack and sensorless FOC motor control. IC Role / Device Role / Timing Role: Three-phase gate driver with integrated current sensing and buck supply for MCU and logic rails. Use Value: Enables compact, thermally efficient inverter design with <500-µs fault response time and no external shunt amp components. |
Use Scenario: Mid-drive e-bike system requiring torque-sensing, regenerative braking, and thermal derating at >250 W continuous. IC Role / Device Role / Timing Role: Smart gate driver managing 6x PWM commutation, phase current feedback, and onboard 5-V/11-V/350-mA power rails. Use Value: Supports bidirectional current sensing for regen control and provides integrated protection against VDS overcurrent during hill-climb surges. |
| Industrial Fans & Blowers | Drone Propulsion Systems |
Use Scenario: HVAC blower with variable-speed control, acoustic noise constraints, and IP54-rated enclosure. IC Role / Device Role / Timing Role: Gate driver executing sinusoidal PWM with adjustable slew rate to minimize audible switching noise. Use Value: Reduces EMI emissions by >10 dBµV in 150 kHz–30 MHz band, easing EMC certification without added filtering. |
Use Scenario: 4S–6S quadcopter ESC with weight-sensitive design, rapid throttle response, and overtemperature shutdown. IC Role / Device Role / Timing Role: High-efficiency three-phase driver with thermal warning (OTW) flag and fast fault clearing via nFAULT pulse. Use Value: Delivers 1-A peak gate drive for fast MOSFET switching (<100 ns rise/fall), enabling 20-kHz PWM without shoot-through risk. |
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 |
|---|---|---|---|
| DRV8353RSRGZT | Same 48-pin VQFN package and SPI interface, but adds integrated triple shunt amplifiers (DRV8350RS lacks them). | Required when phase current sensing is needed without external amplifiers; not drop-in due to different pin functions (e.g., SNA/SNB/SNC vs. SHA/SLA). | Select DRV8353RSRGZT if shunt amplifiers are mandatory; DRV8350RSRGZT is preferred when external sensing or cost optimization is prioritized. |
| DRV8305PWP | 32-pin HTSSOP, 4.5–45-V range, no buck regulator, no shunt amps, hardware-only interface. | Suitable for lower-voltage, space-constrained applications where external regulators and op-amps are acceptable. | Choose DRV8305PWP for 12–36-V systems with minimal feature set; DRV8350RSRGZT is required for 72-V battery compatibility and integrated power/sensing. |
Compared with DRV8353RSRGZT, DRV8350RSRGZT trades integrated current sensing for higher voltage tolerance and simpler signal routing; versus DRV8305PWP, it adds buck regulation, wider VM range, and SPI configurability - making it optimal for 48–72-V e-mobility inverters needing flexible control and reduced component count.
Availability
DRV8350RSRGZT is available at Aetrix Electronics and suitable for electric mobility systems, industrial motor modules, and high-voltage power tools requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DRV8350RSRGZT 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 high-reliability power management solutions.
The DRV835x product line is designed specifically for high-voltage three-phase BLDC motor inverters in e-mobility, power tools, and industrial automation - integrating gate drive, sensing, and power regulation to reduce system-level complexity.
FAQ
What is the maximum VM supply voltage supported by the DRV8350RSRGZT?
The DRV8350RSRGZT supports a VM supply voltage range of 9 V to 75 V, as specified in the absolute maximum ratings and recommended operating conditions of the SLVSDY6A datasheet. This enables direct operation from common 48-V and 72-V battery packs used in e-bikes, scooters, and cordless power tools without external step-down regulation.
Does the DRV8350RSRGZT include integrated current sensing capability?
No, the DRV8350RSRGZT does not include integrated current shunt amplifiers. Unlike the DRV8353RSRGZT variant, the DRV8350RSRGZT omits the amplifier blocks - though it retains all associated sense input pins (SHA/SHB/SHC, SLA/SLB/SLC) for connection to external amplifiers or discrete shunt circuits.
What interface options does the DRV8350RSRGZT support?
DRV8350RSRGZT supports both SPI and hardware-based PWM control. The "RS" suffix denotes SPI capability (nSCS, SCLK, SDI, SDO pins active), while the "R" indicates inclusion of the integrated 350-mA buck regulator. Hardware mode uses INHA–INLC pins directly, with MODE pin selecting 6x/3x/1x operation.
How is fault recovery handled on the DRV8350RSRGZT?
Fault recovery on the DRV8350RSRGZT is performed by applying an 8–40-µs low pulse to the ENABLE pin, which clears latched faults (e.g., OCP, OTSD, shoot-through) and resets the nFAULT output. This hardware-based reset avoids dependency on SPI communication, ensuring robust recovery even during bus errors or MCU lockup.
What is the purpose of the VDS pin on the DRV8350RSRGZT?
The VDS pin on the DRV8350RSRGZT sets the overcurrent trip threshold for high-side MOSFET drain-to-source voltage monitoring. It is a 7-level input configured by an external resistor to ground, allowing programmable VDS OCP thresholds between 0.5 V and 5 V - enabling protection tuning across different MOSFET RDS(on) values and current levels.
DRV8350RSRGZT 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:
- SPI
- 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)
DRV8350RSRGZT FAQ
1.How can I place an order for DRV8350RSRGZT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8350RSRGZT 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 DRV8350RSRGZT reliable?
The price and inventory of DRV8350RSRGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8350RSRGZT is usually 5 days.
3.What payment methods are accepted for DRV8350RSRGZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8350RSRGZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8350RSRGZT?
DRV8350RSRGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8350RSRGZT 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 DRV8350RSRGZT?
For technical support, including DRV8350RSRGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8350RSRGZT requirements.
6.How does Aetrix verify that DRV8350RSRGZT is sourced from the original manufacturer or authorized distributors?
All DRV8350RSRGZT 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 DRV8350RSRGZT meets industry standards.
7.What is the process for return or replacement of DRV8350RSRGZT?
All DRV8350RSRGZT units undergo pre-shipment inspection (PSI). If there is an issue with DRV8350RSRGZT, 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 DRV8350RSRGZT part is unused and in its original packaging.
Return procedure for DRV8350RSRGZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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