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Texas Instruments DRV8323RHRGZT
- Part No.:
- DRV8323RHRGZT
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
DRV8323RHRGZT.pdf
- Description:
- IC MTR DRV MULTIPHAS 6-60V 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,183
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Product details
Overview
DRV8323RHRGZT from Texas Instruments is a 6–60-V three-phase smart gate driver IC for driving high-side and low-side N-channel MOSFETs in BLDC/PMSM motor control systems. It integrates triple half-bridge drivers, 600-mA buck regulator, triple low-side current sense amplifiers (gain selectable: 5/10/20/40 V/V), SPI interface, and comprehensive protection including VM UVLO, OCP, thermal shutdown, and fault reporting via nFAULT.
For engineers reviewing the DRV8323RHRGZT datasheet, DRV8323RHRGZT pinout, DRV8323RHRGZT application, or DRV8323RHRGZT equivalent, key selection considerations include its 48-pin VQFN package, integrated buck regulator enabling single-rail system power, bidirectional current sensing capability, 1-A peak source / 2-A peak sink gate drive strength, and hardware/SPI configurability for 6x/3x/1x PWM modes.
Technical Context
The DRV8323RHRGZT implements a Smart Gate Drive architecture with adjustable slew rate control and supports 100% duty-cycle operation via integrated high-side charge pump and low-side linear regulator. Its gate drive outputs deliver up to 1-A peak source and 2-A peak sink current per channel, optimized for fast switching of N-MOSFETs in high-efficiency motor drives.
It features dual power domains: VM (6–60 V) powers the gate drivers and charge pump, while VIN (4–60 V) supplies the integrated LMR16006X buck regulator delivering 0.8–60 V at 600 mA. The device includes three dedicated low-side current sense amplifier inputs (SNA/SNB/SNC) and outputs (SOA/SOB/SOC), configurable for unidirectional or bidirectional sensing with programmable gain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 6–60 V on VM rail; 4–60 V on VIN rail - enables direct connection to battery or bus without external pre-regulation |
| Gate Drive Output Current | 1-A peak source / 2-A peak sink - sufficient to drive high-Qg MOSFETs at high switching frequencies |
| Buck Regulator Output | 600-mA, adjustable 0.8–60 V - powers MCU, sensors, or logic from same high-voltage bus |
| Current Sense Gain | Selectable 5/10/20/40 V/V - supports shunt resistor values from 1 mΩ to 10 mΩ with ±1% gain accuracy |
| Sleep Mode Current | 12 µA typical - minimizes standby power in battery-powered e-mobility applications |
| Fault Reporting | nFAULT open-drain output + SPI register readback - enables precise fault diagnosis without additional monitoring circuitry |
| Logic Interface | 1.8-V, 3.3-V, and 5-V compatible inputs - simplifies interfacing with diverse microcontrollers |
Pinout & Package
DRV8323RHRGZT uses a 48-pin VQFN package (7.0 mm × 7.0 mm, 0.5-mm pitch) 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 upper N-MOSFETs; each capable of 1-A source / 2-A sink |
| GLA, GLB, GLC | Low-side gate driver outputs | Drive gates of lower N-MOSFETs; referenced to PGND |
| SHA, SHB, SHC | High-side source inputs/outputs | Connect to MOSFET source nodes; serve as VDS monitor inputs and gate driver return paths |
| SNA, SNB, SNC | Current sense amplifier inputs | Accept low-side shunt voltage; support bidirectional sensing with internal offset calibration |
| SOA, SOB, SOC | Current sense amplifier outputs | Analog outputs scaled by selected gain (5–40 V/V); routed to ADC or comparator |
| VIN, VM | Power supply inputs | VIN powers integrated buck; VM powers gate drivers and charge pump - independent rails enable flexible system architecture |
| nFAULT | Fault indicator | Open-drain output pulled low during UVLO, OCP, thermal fault, or gate driver fault |
| ENABLE | Global enable input | Logic-low entry into 12-µA sleep mode; 8–40 µs pulse resets faults without sleep |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 600-mA buck regulator | Eliminates need for external DC/DC converter; supports wide 4–60-V input and programmable output voltage |
| Triple low-side current sense amplifiers | Enable phase-current measurement with selectable gain and auto-offset calibration via CAL pin |
| Smart slew rate control | Reduces EMI and dV/dt stress on MOSFETs without sacrificing switching speed |
| 100% duty-cycle support | Charge pump + linear regulator architecture allows continuous high-side conduction for field-oriented control |
| Comprehensive fault protection | Detects VM undervoltage, MOSFET overcurrent, VDS short-circuit, thermal warning/shutdown, and gate driver faults |
Applications
| BLDC Motor Control | E-Bike Powertrain |
|---|---|
Use Scenario: Closed-loop commutation of 3-phase BLDC motors in industrial fans and pumps using FOC or trapezoidal control. IC Role / Device Role / Timing Role: Three-phase gate driver providing synchronized high/low-side drive signals, current feedback, and real-time fault response. Use Value: Integrated CSAs and buck regulator reduce BOM count by 5+ components versus discrete solutions; SPI configuration enables runtime parameter tuning. | Use Scenario: Torque-controlled mid-drive motor system with regenerative braking and battery voltage ranging from 36 V to 52 V. IC Role / Device Role / Timing Role: Primary gate driver managing 60-V MOSFET bridge, supplying 3.3-V MCU rail via DVDD, and powering controller logic via integrated buck. Use Value: 12-µA sleep current extends battery standby time; bidirectional current sensing supports accurate regen current measurement. |
| Cordless Power Tools | Industrial Robotics |
Use Scenario: High-torque, high-RPM brushless motor drive in 18–60-V cordless drills and angle grinders with aggressive acceleration profiles. IC Role / Device Role / Timing Role: Gate driver delivering high peak currents (1-A source / 2-A sink) to rapidly charge/discharge MOSFET gates during PWM transitions. Use Value: Adjustable slew rate minimizes shoot-through risk during high-dI/dt transients; thermal shutdown prevents damage during stall conditions. | Use Scenario: Precision servo drive in collaborative robot joints requiring low-latency current feedback and robust fault handling. IC Role / Device Role / Timing Role: Gate driver with SPI interface for real-time register access, enabling dynamic gain adjustment and fault logging without interrupting motion control loop. Use Value: Fault details readable via SPI registers allow predictive maintenance; nFAULT pin provides immediate hardware-level shutdown signal to safety controller. |
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 |
|---|---|---|---|
| DRV8323SRGZT | SPI interface only; no hardware-only mode; identical pinout and current sense/buck integration | Lacks hardware PWM mode flexibility; requires SPI initialization before operation | Choose when firmware-based configuration and diagnostics are prioritized over hardware simplicity |
| DRV8353RSRTVT | 40-V max VM; integrated 3.3-V LDO only (no buck); no current sense amplifiers; 32-pin WQFN | Lower voltage rating and missing sensing/buck functions limit use to simpler, lower-power BLDC systems | Choose for cost-sensitive, space-constrained designs where external buck and separate CSA are acceptable |
Compared with DRV8323RHRGZT, DRV8323SRGZT offers identical analog functionality but mandates SPI control, while DRV8353RSRTVT reduces integration to cut cost and size at the expense of sensing and system power capability - making DRV8323RHRGZT optimal for high-feature, high-voltage e-mobility and industrial drives.
Availability
DRV8323RHRGZT is available at Aetrix Electronics and suitable for BLDC motor modules, e-bike powertrains, and industrial robotics requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for DRV8323RHRGZT 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, embedded processing, and power management technologies with decades of motor control IP investment.
The DRV832x product line delivers highly integrated, protection-rich gate drivers targeting high-efficiency, high-reliability three-phase motor systems in e-mobility, power tools, and industrial automation.
FAQ
What is the maximum operating voltage for DRV8323RHRGZT?
The DRV8323RHRGZT supports a VM supply range of 6 V to 60 V for gate driver operation and a separate VIN range of 4 V to 60 V for its integrated buck regulator. This dual-rail design allows the device to operate directly from common battery voltages used in e-bikes (36 V, 48 V), cordless tools (18–60 V), and industrial systems without intermediate regulation. Absolute maximum ratings must not be exceeded during transient events.
Does DRV8323RHRGZT support both hardware and SPI configuration?
Yes, DRV8323RHRGZT supports both hardware (H/W) and SPI interfaces for configuration. The H/W mode uses resistor-programmed pins (MODE, IDRIVE, GAIN, VDS) for fixed-function setup, while SPI enables dynamic register access for real-time adjustments, fault register reads, and advanced diagnostics. Pin compatibility with DRV8323RH ensures seamless migration between interface options.
How does the current sense amplifier in DRV8323RHRGZT work?
The DRV8323RHRGZT integrates three dedicated low-side current sense amplifiers (CSAs) with inputs SNA/SNB/SNC and outputs SOA/SOB/SOC. Gain is set externally via the GAIN pin (5/10/20/40 V/V). The CAL pin initiates auto-offset calibration to cancel input offset errors. Amplifiers support bidirectional sensing for regenerative braking and are internally protected against overvoltage and latch-up.
What protection features are built into DRV8323RHRGZT?
DRV8323RHRGZT includes VM undervoltage lockout (UVLO), charge pump undervoltage (CPUV), MOSFET overcurrent protection (OCP), gate driver fault (GDF), thermal warning and shutdown (OTW/OTSD), and VDS short-circuit detection. Faults are signaled simultaneously on the nFAULT pin and stored in SPI-accessible registers for root-cause analysis - critical for safety-critical motor applications.
Can DRV8323RHRGZT drive both high-side and low-side N-MOSFETs without external bootstrap components?
Yes, DRV8323RHRGZT drives high-side N-MOSFETs using an integrated charge pump (CPH/CPL/VCP) and low-side N-MOSFETs using an internal linear regulator (DVDD), eliminating external bootstrap diodes and capacitors. The charge pump supports 100% duty cycle operation, enabling continuous high-side conduction required for field-oriented control algorithms in BLDC and PMSM motors.
DRV8323RHRGZT 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:
- Pre-Driver - Half Bridge (3)
- Interface:
- Hardwired (HW)
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Brushless DC (BLDC)
- Current - Output:
- 5mA
- Voltage - Supply:
- 6V ~ 60V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-VQFN (7x7)
DRV8323RHRGZT FAQ
1.How can I place an order for DRV8323RHRGZT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8323RHRGZT 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 DRV8323RHRGZT reliable?
The price and inventory of DRV8323RHRGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8323RHRGZT is usually 5 days.
3.What payment methods are accepted for DRV8323RHRGZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8323RHRGZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8323RHRGZT?
DRV8323RHRGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8323RHRGZT 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 DRV8323RHRGZT?
For technical support, including DRV8323RHRGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8323RHRGZT requirements.
6.How does Aetrix verify that DRV8323RHRGZT is sourced from the original manufacturer or authorized distributors?
All DRV8323RHRGZT 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 DRV8323RHRGZT meets industry standards.
7.What is the process for return or replacement of DRV8323RHRGZT?
All DRV8323RHRGZT units undergo pre-shipment inspection (PSI). If there is an issue with DRV8323RHRGZT, 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 DRV8323RHRGZT part is unused and in its original packaging.
Return procedure for DRV8323RHRGZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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