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Texas Instruments DRV8304HRHAT
- Part No.:
- DRV8304HRHAT
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
DRV8304HRHAT.pdf
- Description:
- IC GATE DRVR HI/LOW SIDE 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:512
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Product details
Overview
DRV8304HRHAT from Texas Instruments is a 3-phase smart gate driver IC for BLDC motor control, integrating three independent N-channel MOSFET half-bridge drivers, triple current-sense amplifiers (CSA) with adjustable gain (5–40 V/V), and embedded protection logic. It operates from 6 V to 38 V, supports 100% PWM duty cycle, and delivers up to 150 mA peak source / 300 mA peak sink gate drive current - enabling robust control of high-side and low-side FETs in compact 12-V/24-V motor modules.
For engineers reviewing the DRV8304HRHAT datasheet, DRV8304HRHAT pinout, DRV8304HRHAT application, or DRV8304HRHAT equivalent, key selection considerations include its hardware-configurable interface (no SPI required), integrated 3.3-V/30-mA linear regulator, VGS hand-shake dead-time insertion, and configurable VDS overcurrent trip thresholds - all critical for field-oriented control (FOC) and sensored trapezoidal commutation in space-constrained, thermally demanding motor drives.
Technical Context
The DRV8304HRHAT implements a hardware-configured smart gate-drive (SGD) architecture that eliminates external gate resistors and Zener clamps while enforcing shoot-through prevention via programmable dead time (120 ns typical) and VGS hand-shaking. Its integrated charge pump (VCP = 7–11.5 V at VM ≥ 12 V) powers high-side drivers, and the low-side linear regulator supplies DVDD (3.3 V ±0.4 V) with 30-mA capability.
Three bidirectional shunt amplifiers support real-time phase current sensing with selectable gain (5/10/20/40 V/V), offset calibration via CAL pin, and output bias at VREF/2. Protection includes VM UVLO (5.6 V recovery), charge-pump UVLO, VDS-based OCP (configurable 0.15–1.8 V threshold), thermal warning (120–140°C), and shutdown (150–170°C), all signaled via open-drain nFAULT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 6 V to 38 V - supports 12-V and 24-V DC rails with 40-V absolute max rating for transient robustness. |
| Gate Drive Current | 15–150 mA peak source / 30–300 mA peak sink - configurable via IDRIVE pin to match MOSFET gate charge and switching loss requirements. |
| Current Sense Gain | 5, 10, 20, or 40 V/V - set by GAIN pin resistor divider; enables precise low-side or bidirectional shunt sensing across wide current ranges. |
| VDS Overcurrent Threshold | 0.15 V to 1.8 V - configured via VDS pin resistor network to detect MOSFET short-circuit or overload before thermal failure. |
| Thermal Protection | OTW at 120–140°C, OTSD at 150–170°C - hysteresis of 20°C prevents oscillation during thermal transients. |
| Logic Compatibility | 1.8-V, 3.3-V, and 5-V input tolerant - allows direct interfacing with microcontrollers, FPGAs, or DSPs without level shifters. |
| Sleep Mode Current | 20–100 µA at 24 V - enables ultra-low-power standby in battery-operated drones, pumps, and portable medical devices. |
Pinout & Package
DRV8304HRHAT is housed in a 40-pin VQFN package (RHA) with exposed thermal pad, optimized for high-power density and thermal dissipation in motor-control PCBs. The package measures 6 mm × 6 mm × 0.9 mm (0.4-mm pitch) and requires solder paste stencil design per TI SNOA922.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INHA, INHB, INHC | High-side control inputs | Direct logic-level PWM inputs controlling GHA/GHB/GHC outputs; support 200-kHz max frequency. |
| INLA, INLB, INLC | Low-side control inputs | Direct logic-level PWM inputs controlling GLA/GLB/GLC outputs; enable independent or synchronized 6x/3x/1x commutation modes. |
| GHA, GHB, GHC | High-side gate outputs | Drive N-MOSFET gates with VGS up to 11.5 V (at VM ≥ 12 V); include internal clamping (−0.6 V to +15 V). |
| GLA, GLB, GLC | Low-side gate outputs | Drive N-MOSFET gates with VGS up to 12.5 V; feature 300-mA strong pulldown to prevent dv/dt turn-on. |
| SOA, SOB, SOC | Shunt amplifier outputs | Analog outputs biased at VREF/2; deliver amplified current-sense signals directly to ADC inputs with ±1.25-mV offset error (G=40). |
| nFAULT | Fault indicator | Open-drain output pulled low on any fault (UVLO, OCP, OTW, shoot-through); requires external pull-up for system-level interrupt signaling. |
| ENABLE | Global enable | Active-high logic input; 5–32 µs low pulse resets faults; low state places device in <100-µA sleep mode. |
| VM | Main power supply | Connects to bridge bus (6–38 V); local 0.1-µF + ≥10-µF capacitance required between VM and PGND for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Smart Gate-Drive Architecture | Eliminates external gate resistors/Zeners; enforces minimum dead time (120 ns) and VGS handshake to guarantee shoot-through immunity. |
| Triple Integrated Current-Sense Amplifiers | Configurable gain (5–40 V/V), AUTOCAL offset calibration, and VREF/2 bias enable accurate FOC current loop implementation without external op-amps. |
| Hardware-Configurable Interface | No SPI required - all settings (gain, OCP threshold, drive strength, PWM mode) set via resistor dividers on GAIN, VDS, IDRIVE, and MODE pins. |
| Integrated Power Supplies | Charge pump (VCP) powers high-side drivers; 3.3-V/30-mA linear regulator (DVDD) powers MCU or external logic - reducing BOM count by ≥3 components. |
| Comprehensive Fault Protection | Dual-stage thermal response (warning + shutdown), VDS-based OCP, CPUV, VM UVLO, and gate-driver fault detection - all reported via single nFAULT pin. |
Applications
| BLDC Motor Control | Medical Pumps & CPAP |
|---|---|
|
Use Scenario: Field-oriented control of 3-phase BLDC motors in cordless power tools and robotic joints. IC Role / Device Role / Timing Role: Gate driver and current sensor hub - provides synchronized PWM outputs, real-time phase current feedback, and fault-safe shutdown. Use Value: Enables torque ripple reduction and efficient sensorless FOC using only three shunt resistors and no external amplifiers or isolated sensors. |
Use Scenario: Precision flow control in portable CPAP machines and infusion pumps requiring silent, reliable motor operation. IC Role / Device Role / Timing Role: Integrated motor driver with low-noise current sensing and thermal monitoring - ensures patient safety and compliance with IEC 60601-1. Use Value: Reduces acoustic noise via slew-rate control and eliminates discrete protection circuitry, meeting Class II medical EMC requirements out-of-the-box. |
| Drone Propulsion Systems | White Goods Motors |
|
Use Scenario: High-speed, weight-optimized ESCs for multirotor UAVs with dynamic load changes and tight thermal budgets. IC Role / Device Role / Timing Role: Smart gate driver with fast wake-up (<1 ms), low sleep current (≤100 µA), and integrated VDS OCP for rotor stall detection. Use Value: Enables rapid throttle response and failsafe motor stop during flight anomalies - critical for FAA Part 107 compliance. |
Use Scenario: Variable-speed compressor and drum motor drives in refrigerators and washing machines operating across wide ambient temperatures. IC Role / Device Role / Timing Role: Robust 3-phase driver with −40°C to +125°C ambient rating, VM UVLO hysteresis, and thermal warning for predictive maintenance. Use Value: Extends system lifetime by preventing MOSFET failure due to voltage sag or overheating - validated per IEC 60335-1 household appliance standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase smart gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8305PAPR | SPI interface variant with identical pinout and specs; adds register-based configuration and diagnostics. | Required where firmware-controlled gain/OCP adjustment or fault logging is needed - not suitable for pure hardware-configured designs. | Select DRV8305PAPR only if SPI communication and dynamic parameter tuning are essential; DRV8304HRHAT offers simpler, lower-cost hardware-only setup. |
| MP6532GQ-Z | Monolithic 3-phase driver with integrated MOSFETs (60-V, 5-A); lacks shunt amplifiers and VDS OCP - relies on external current sensing. | Better suited for low-power fans or small pumps where board space is extreme but precision current control is secondary. | Choose MP6532GQ-Z for ultra-compact, low-current applications; DRV8304HRHAT remains preferred for high-fidelity FOC with integrated sensing and protection. |
Compared with DRV8305PAPR, DRV8304HRHAT reduces firmware complexity and BOM cost by eliminating SPI routing and pull-up resistors; versus MP6532GQ-Z, it delivers superior current measurement accuracy and fault coverage at the expense of external MOSFET layout - making it optimal for mid-power industrial and medical motor systems.
Availability
DRV8304HRHAT is available at Aetrix Electronics and suitable for BLDC motor control, medical pump drives, drone propulsion systems, and white goods applications requiring stable component supply, long-term lifecycle support, and automotive-grade reliability under thermal stress.
Supply support for DRV8304HRHAT 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 DRV8304HRHAT belongs to TI's smart gate driver product line, engineered specifically for cost-sensitive, thermally demanding 3-phase BLDC applications in consumer, medical, and industrial equipment - emphasizing integration, configurability, and protection without software dependency.
FAQ
What is the maximum operating voltage for the DRV8304HRHAT?
The DRV8304HRHAT has an absolute maximum VM supply voltage of 40 V, with recommended operation from 6 V to 38 V. This range fully supports common 12-V and 24-V DC bus systems while providing margin against load-dump transients. Operation beyond 38 V risks violating recommended conditions and may trigger VM undervoltage lockout recovery at 5.6 V or cause permanent damage if sustained above 40 V.
Does the DRV8304HRHAT require an external microcontroller to configure its current-sense gain?
No - the DRV8304HRHAT uses hardware configuration: the GAIN pin accepts a 4-level resistor divider (tied to AGND, 45 kΩ to AGND, Hi-Z, or DVDD) to select gains of 5, 10, 20, or 40 V/V. No microcontroller, SPI interface, or firmware is needed, making DRV8304HRHAT ideal for fixed-function, cost-sensitive motor drives where simplicity and reliability are prioritized over runtime reconfiguration.
How does the DRV8304HRHAT protect against shoot-through in 3-phase BLDC operation?
The DRV8304HRHAT prevents shoot-through using dual mechanisms: (1) hardware-enforced minimum dead time of 120 ns between high-side and low-side gate transitions, and (2) VGS hand-shaking logic that verifies gate voltage levels before enabling complementary outputs. These features are built into the smart gate-drive architecture and require no external timing components - ensuring robust protection even under rapid PWM edge transitions in DRV8304HRHAT-based inverters.
Can the DRV8304HRHAT drive both high-side and low-side N-channel MOSFETs without external bootstrap components?
Yes - the DRV8304HRHAT integrates a charge pump (CPH/CPL/VCP) to generate the high-side gate drive voltage, eliminating the need for external bootstrap capacitors or diodes. It also includes a low-side linear regulator for DVDD. This full integration allows DRV8304HRHAT to drive standard N-channel MOSFETs on both sides of all three half-bridges using only five external passive components (three 22-nF CPH/CPL caps and two 1-µF VCP/VM caps).
What fault conditions trigger the nFAULT pin on the DRV8304HRHAT?
The nFAULT pin on the DRV8304HRHAT is asserted low for seven confirmed fault conditions: VM undervoltage lockout (UVLO), charge pump undervoltage (CPUV), MOSFET VDS overcurrent (OCP), gate-driver shoot-through, gate-driver fault (GDF), thermal warning (OTW), and thermal shutdown (OTSD). All faults are latched until cleared by a 5–32 µs low pulse on the ENABLE pin - enabling deterministic system-level fault handling in DRV8304HRHAT-based motor controllers.
DRV8304HRHAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- High-Side or Low-Side
- Channel Type:
- 3-Phase
- Number of Drivers:
- 3
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 6V ~ 38V
- Logic Voltage - VIL, VIH:
- 0.8V, 1.5V
- Current - Peak Output (Source, Sink):
- 150mA, 300mA
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 300ns, 150ns
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-VQFN (6x6)
DRV8304HRHAT FAQ
1.How can I place an order for DRV8304HRHAT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8304HRHAT 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 DRV8304HRHAT reliable?
The price and inventory of DRV8304HRHAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8304HRHAT is usually 5 days.
3.What payment methods are accepted for DRV8304HRHAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8304HRHAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8304HRHAT?
DRV8304HRHAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8304HRHAT 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 DRV8304HRHAT?
For technical support, including DRV8304HRHAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8304HRHAT requirements.
6.How does Aetrix verify that DRV8304HRHAT is sourced from the original manufacturer or authorized distributors?
All DRV8304HRHAT 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 DRV8304HRHAT meets industry standards.
7.What is the process for return or replacement of DRV8304HRHAT?
All DRV8304HRHAT units undergo pre-shipment inspection (PSI). If there is an issue with DRV8304HRHAT, 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 DRV8304HRHAT part is unused and in its original packaging.
Return procedure for DRV8304HRHAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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