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Texas Instruments DRV8329AQRGFRQ1
- Part No.:
- DRV8329AQRGFRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
DRV8329AQRGFRQ1.pdf
- Description:
- AUTOMOTIVE 60V THREE-PHASE GATE
- Quantity:
- Payment:
- Shipping:
Inventory:2,255
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Product details
Overview
DRV8329AQRGFRQ1 from Texas Instruments is an AEC-Q100 qualified 4.5–60V three-phase BLDC gate driver IC for automotive motor control. It integrates six N-channel MOSFET drivers (3 high-side + 3 low-side), a 3.3V ±3% 80mA LDO, and a programmable current sense amplifier with 5/10/20/40V/V gain. It supports 6x PWM mode and enables 100% duty cycle via trickle charge pump - used in electric HVAC fans and power seat modules.
For engineers reviewing the DRV8329AQRGFRQ1 datasheet, DRV8329AQRGFRQ1 pinout, DRV8329AQRGFRQ1 application, or DRV8329AQRGFRQ1 equivalent, key selection criteria include bootstrap-based gate drive architecture, phase-matched 4ns typical propagation delay, adjustable deadtime (50–2000ns), VDS overcurrent threshold tuning via VDSLVL, and integrated protection including PVDD/GVDD/BST_UV, VDS_OCP, SEN_OCP, and thermal shutdown.
Technical Context
The DRV8329AQRGFRQ1 implements a bootstrap-based half-bridge gate driver architecture with independent high-side and low-side control inputs per phase (INHA/INLA through INHC/INLC), supporting both 6x and 3x PWM modes. Its trickle charge pump sustains 100% duty cycle operation while maintaining GVDD ≥11.5V across 4.5–60V PVDD input range.
It integrates a single low-side shunt current sense amplifier with configurable gain and reference (CSAREF), optimized for one-shunt sensing of summed three-phase currents. Fault management includes dedicated DRVOFF shutdown path, nFAULT open-drain indicator, and 65V-tolerant nSLEEP pin enabling wake-from-sleep reset with 1–1.2µs pulse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PVDD Range | 4.5 V to 60 V - powers gate drivers directly from battery or DC bus; supports automotive cold-crank (4.5V) and load-dump transients (60V). |
| Gate Drive Current | 1000 mA source / 2000 mA sink peak - drives high-Ciss N-MOSFETs with fast switching and robust turn-off under Miller plateau. |
| Propagation Delay Matching | ±4 ns typical phase-to-phase matching - ensures precise timing alignment across all three phases for low torque ripple in BLDC commutation. |
| AVDD LDO Output | 3.3 V ±3%, 80 mA - powers external microcontrollers or sensors; stable reference for current sense amplifier. |
| Deadtime Adjustment | 50 ns to 2000 ns via DT pin resistor - prevents shoot-through by configuring minimum off-time between high-side and low-side FETs. |
| VDS Overcurrent Threshold | Adjustable 0.1 V to 2.5 V via VDSLVL pin - sets MOSFET short-circuit detection level independent of bus voltage. |
| Current Sense Gain | 5 / 10 / 20 / 40 V/V selectable via CSAGAIN resistor - enables accurate low-side shunt sensing across wide current ranges (e.g., 50 mΩ shunt at 50 A full-scale). |
Pinout & Package
DRV8329AQRGFRQ1 uses a 40-pin WQFN package (7.00 mm × 5.00 mm) with exposed thermal pad connected to GND. The package supports high-power dissipation in compact automotive motor control layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GHA, GHB, GHC | High-side gate driver outputs | Drive gates of external N-MOSFETs; each rated for 1A source / 2A sink peak current. |
| GLA, GLB, GLC | Low-side gate driver outputs | Drive low-side N-MOSFET gates; include internal 100 kΩ passive pull-down to LSS for safe default state. |
| SHA, SHB, SHC | High-side source nodes | Connect to MOSFET source terminals; serve as VDS monitor inputs and bootstrap return paths. |
| BSTA, BSTB, BSTC | Bootstrap supply outputs | Provide floating gate drive voltage for high-side FETs; require 1 µF/25V ceramic capacitor to respective SHx pin. |
| LSS | Low-side source common | Common connection point for all low-side MOSFET sources; used for VDS monitoring and current sense reference. |
| SP/SN | Current shunt amplifier inputs | Differential inputs for single-shunt current sensing; support ±1 V common-mode range with transient tolerance to –10 V. |
| SO | Current sense amplifier output | Analog output referenced to CSAREF; supports RC filtering or direct ADC interface with ≤500 pF capacitive load. |
| nFAULT | Fault indicator | Open-drain output pulled low during any fault (UVLO, OCP, OTSD); requires external 3.3–5.0 V pull-up. |
| DRVOFF | Independent shutdown | Hardware override that forces all gate drivers into pull-down state - bypasses logic core for fail-safe MOSFET disable. |
| nSLEEP | Sleep mode control | 65V-tolerant input; logic-low entry to ultra-low-power sleep (<1 µA); 1–1.2 µs pulse resets faults without sleep entry. |
Key Features
| Feature | Design Value |
|---|---|
| Trickle charge pump | Enables true 100% high-side PWM duty cycle without external boost supply - critical for field-oriented control (FOC) at zero-speed. |
| Phase-matched propagation delay | ±4 ns matching between phases minimizes timing skew, reducing torque ripple and acoustic noise in precision BLDC applications. |
| Configurable deadtime | Resistor-programmable 50–2000 ns deadtime (DT pin) allows dynamic optimization for different MOSFETs and switching frequencies. |
| Integrated VDS overcurrent protection | VDSLVL pin accepts analog voltage (0.1–2.5 V) to set MOSFET RDS(on)-based short-circuit threshold - eliminates need for external comparators. |
| Hardware-only DRVOFF path | Direct gate-driver disable independent of PWM logic state - provides deterministic safety shutdown for ASIL-B/C system integration. |
| Automotive-grade protection suite | Includes PVDD/GVDD/BST_UV lockouts, VDS_OCP, SEN_OCP, and thermal shutdown with latched nFAULT - meets ISO 26262 functional safety requirements. |
Applications
| Automotive HVAC Blower | Electric Power Seat Control |
|---|---|
|
Use Scenario: Variable-speed centrifugal blower in climate control systems requiring quiet, efficient airflow across 0–100% duty cycle. IC Role / Device Role / Timing Role: Three-phase gate driver delivering synchronized 6x PWM signals to 6 N-MOSFETs; supports FOC with 100% duty cycle capability and <4 ns phase timing skew. Use Value: Enables smooth, low-noise commutation and precise speed regulation using single-shunt current sensing - reduces BOM count vs. three-shunt solutions. |
Use Scenario: Bidirectional actuation of seat position motors (fore/aft, recline, lumbar) with stall detection and soft-start. IC Role / Device Role / Timing Role: Gate driver with hardware DRVOFF and VDS_OCP for immediate motor shutdown during mechanical jam; nSLEEP enables low-quiescent standby. Use Value: Integrated protection eliminates discrete fault-handling circuitry; 3.3V AVDD powers MCU and serves as CSA reference - simplifies power tree. |
| Automotive Window Lift Module | E-Bike Mid-Drive Motor Controller |
|
Use Scenario: Anti-pinch window lift with torque sensing, soft-stop, and reverse-on-obstruction behavior. IC Role / Device Role / Timing Role: Gate driver with programmable deadtime (DT pin) and adjustable VDS threshold (VDSLVL) to adapt to varying motor loads and battery voltages. Use Value: Real-time VDS monitoring replaces hall-based stall detection; ±10V transient tolerance on SHx pins ensures robustness against inductive kickback. |
Use Scenario: High-efficiency mid-drive motor controller for 36–48 V e-bikes requiring regenerative braking and torque assist. IC Role / Device Role / Timing Role: BLDC gate driver with 60 V PVDD rating and 2 A sink current to handle high-current MOSFETs during boost-assist phases. Use Value: Bootstrap architecture with trickle pump supports extended 100% duty cycles needed for regen braking; integrated CSA gain options simplify current loop scaling. |
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 |
|---|---|---|---|
| DRV8323RSRTVTQ1 | 40-pin WQFN, 3.3V AVDD, 6x/3x PWM, but lacks trickle charge pump and 100% duty cycle support. | Not suitable for FOC at zero speed or continuous high-side conduction; limited to trapezoidal commutation. | Select DRV8329AQRGFRQ1 when 100% duty cycle, precise phase matching, or integrated VDS_OCP tuning is required. |
| MP6550GQ-Z | 32-pin QFN, 5–60V, 1.2A/2.4A drive, no integrated CSA, no VDSLVL or DT pin, AVDD not available. | Requires external current sense amp and deadtime generation; higher gate drive current but less feature integration. | Choose DRV8329AQRGFRQ1 for automotive-grade protection, single-shunt sensing, and hardware-configurable parameters without MCU overhead. |
Compared with DRV8323RSRTVTQ1 and MP6550GQ-Z, the DRV8329AQRGFRQ1 uniquely combines 100% duty cycle capability, phase-matched timing, programmable VDS overcurrent threshold, and integrated 3.3V LDO - reducing system-level component count and improving functional safety compliance in ASIL-B designs.
Availability
DRV8329AQRGFRQ1 is available at Aetrix Electronics and suitable for automotive HVAC fans, power seat modules, and e-mobility motor controllers requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for DRV8329AQRGFRQ1 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 automotive electronics with decades of AEC-Q100 product validation experience.
The DRV8329-Q1 family is designed specifically for automotive three-phase BLDC/PMSM motor control, emphasizing functional safety, high-voltage robustness, and integrated protection - targeting body electronics, thermal management, and electrified mobility systems.
FAQ
What is the difference between DRV8329AQRGFRQ1 and DRV8329BQRGFRQ1?
The DRV8329AQRGFRQ1 supports 6x PWM mode (independent high-side and low-side control per phase), while DRV8329BQRGFRQ1 supports 3x PWM mode (half-bridge control per phase). Both share identical pinout, package, LDO, CSA, and protection features. The A-variant enables advanced commutation schemes like FOC with full gate-level flexibility; the B-variant simplifies control interface for trapezoidal drive.
Does DRV8329AQRGFRQ1 support 100% duty cycle operation?
Yes, DRV8329AQRGFRQ1 supports true 100% high-side duty cycle using its integrated trickle charge pump, which maintains GVDD voltage even when high-side FETs remain continuously on. This capability is essential for zero-speed torque control in field-oriented control (FOC) algorithms used in automotive HVAC and seat modules.
How is deadtime configured on DRV8329AQRGFRQ1?
Deadtime on DRV8329AQRGFRQ1 is configured via the DT pin: connecting a resistor (10 kΩ to 390 kΩ) between DT and AGND sets deadtime from 75 ns to 2000 ns. Leaving DT floating yields ~55 ns; tying to AGND fixes ~55 ns. This hardware-based adjustment avoids firmware dependency and ensures deterministic timing in safety-critical motor control.
What protection features does DRV8329AQRGFRQ1 integrate?
DRV8329AQRGFRQ1 integrates PVDD undervoltage lockout (PVDDUV), GVDD undervoltage (GVDDUV), bootstrap undervoltage (BST_UV), VDS-based overcurrent protection (VDS_OCP), current-shunt overcurrent protection (SEN_OCP), and thermal shutdown (OTSD). All faults assert the open-drain nFAULT pin, and DRVOFF provides hardware override for fail-safe shutdown.
Can DRV8329AQRGFRQ1 drive 60V-rated MOSFETs directly?
Yes, DRV8329AQRGFRQ1 supports PVDD up to 60V and has 65V-rated pins (PVDD, nSLEEP, GHx, SHx), enabling direct interface with 60V MOSFETs in automotive 48V systems. Its bootstrap architecture tolerates –10V transients on SHx pins, and gate drivers deliver 1A source / 2A sink current - sufficient for driving typical 60V N-channel MOSFETs with Ciss < 3 nF.
DRV8329AQRGFRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Multiphase
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Controller - Current Management
- Output Configuration:
- Half Bridge (3)
- Interface:
- PWM
- Technology:
- NMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 2A
- Voltage - Supply:
- 4.5V ~ 60V
- Voltage - Load:
- 4.5V ~ 60V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-VQFN (7x5)
DRV8329AQRGFRQ1 FAQ
1.How can I place an order for DRV8329AQRGFRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8329AQRGFRQ1 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 DRV8329AQRGFRQ1 reliable?
The price and inventory of DRV8329AQRGFRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8329AQRGFRQ1 is usually 5 days.
3.What payment methods are accepted for DRV8329AQRGFRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8329AQRGFRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8329AQRGFRQ1?
DRV8329AQRGFRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8329AQRGFRQ1 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 DRV8329AQRGFRQ1?
For technical support, including DRV8329AQRGFRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8329AQRGFRQ1 requirements.
6.How does Aetrix verify that DRV8329AQRGFRQ1 is sourced from the original manufacturer or authorized distributors?
All DRV8329AQRGFRQ1 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 DRV8329AQRGFRQ1 meets industry standards.
7.What is the process for return or replacement of DRV8329AQRGFRQ1?
All DRV8329AQRGFRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DRV8329AQRGFRQ1, 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 DRV8329AQRGFRQ1 part is unused and in its original packaging.
Return procedure for DRV8329AQRGFRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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