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Texas Instruments DRV8334PHPR
- Part No.:
- DRV8334PHPR
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- 48-PowerTQFP
- Datasheet:
-
DRV8334PHPR.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 48HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:535
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Product details
Overview
DRV8334PHPR from Texas Instruments is a three-phase smart gate driver IC for BLDC and PMSM motor control, integrating six N-channel MOSFET gate drivers, low-side current sense amplifiers with sub-1mV offset, SPI-based configuration, 4.5–60V wide supply range, and advanced fault monitoring. It enables high-efficiency cordless power tools and e-mobility drives.
For engineers reviewing the DRV8334PHPR datasheet, DRV8334PHPR pinout, DRV8334PHPR application, or DRV8334PHPR equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative parts, and supply-ready availability details - all grounded in TI's SLVSHC7B production data sheet (Rev. SEPTEMBER 2025).
Technical Context
The DRV8334PHPR implements a Smart Gate Drive architecture with 45-level configurable peak sink current up to 2000mA and source current up to 1000mA, plus three-step dynamic drive control and soft shutdown to suppress inductive voltage spikes during overcurrent events. Its bootstrap + GVDD charge pump supports up to 50mA average gate switching current for driving 400nC MOSFETs at 20kHz.
It integrates three independent low-side current sense amplifiers with 9-level adjustable gain and sub-1mV input offset across temperature, enabling precise motor phase current measurement. The device uses SPI for detailed register-level diagnostics and supports 6x/3x/1x/Independent PWM modes with 3.3V/5V logic compatibility and dedicated DRVOFF and nSLEEP pins for system-level control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 60 V - supports battery-powered tools (e.g., 18V–60V cordless platforms) without external regulators. |
| Peak Gate Drive Current | Up to 2000 mA sink / 1000 mA source - drives high-Qg MOSFETs (e.g., 400nC) at 20 kHz switching without external buffers. |
| Current Sense Offset | <1 mV across temperature - enables accurate low-side shunt-based current sensing down to ≤50 mΩ Rsense without calibration drift. |
| Operating Temperature | –40°C to +125°C ambient - qualified for industrial and outdoor e-mobility environments including lawnmowers and e-scooters. |
| Fault Protection | VDS, VGS, Rsense, thermal, and phase feedback monitoring - reduces need for discrete protection circuitry in BLDC inverters. |
| Logic Interface | 3.3 V and 5 V compatible inputs - interoperable with MCU GPIOs and isolated gate drivers without level-shifting. |
| SPI Diagnostics | Read/write STATUS and CONTROL registers - enables real-time fault logging, dynamic parameter tuning, and predictive maintenance. |
Pinout & Package
DRV8334PHPR is packaged in HTQFP-48 (9 mm × 9 mm, exposed thermal pad), optimized for high-power motor drive PCBs requiring efficient heat dissipation. Pin functions are validated per TI SLVSHC7B Rev. SEPTEMBER 2025, Figure 4-1 and Table 4-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GHA, GHB, GHC | High-side gate driver output | Directly drives gates of three high-side N-MOSFETs; each referenced to its respective SHx pin. |
| GLA, GLB, GLC | Low-side gate driver output | Directly drives gates of three low-side N-MOSFETs; each referenced to its respective SLx pin. |
| SHA, SHB, SHC | High-side source sense input | Connects to high-side MOSFET source; enables VDS monitoring and bootstrap capacitor charging reference. |
| SLA, SLB, SLC | Low-side source sense input | Connects to low-side MOSFET source; provides common-mode reference for current sense amplifiers. |
| SPA, SPB, SPC | Current sense amplifier high-side input | Connects to high-side of shunt resistor; used with SNx pins to measure phase current via differential amplification. |
| SNA, SNB, SNC | Current sense amplifier low-side input | Connects to low-side of shunt resistor; forms differential pair with corresponding SPx pin for precision current sensing. |
| INHA, INHB, INHC | High-side gate control input | Digital PWM input controlling high-side driver state; supports 6x/3x/1x PWM modes via SPI configuration. |
| INLA, INLB, INLC | Low-side gate control input | Digital PWM input controlling low-side driver state; configurable as phase comparator output via PHC_OUTEN bit. |
| nSLEEP | High-voltage wake-up input | Active-low pin enabling ultra-low sleep current (16–50 µA); accepts up to 60 V directly for battery-cranking resilience. |
| DRVOFF | Independent gate disable input | Active-high signal forcing all GHx/GLx outputs low - enables fast, synchronous shutdown without SPI latency. |
| nFAULT | Open-drain fault indicator | Pulled low during any fault (overcurrent, overtemperature, VDS, etc.); requires external pull-up for MCU interrupt signaling. |
| BSTA, BSTB, BSTC | Bootstrap output | Drives bootstrap capacitors tied to SHA/SHB/SHC; supports 100% duty cycle via trickle charge pump when paired with CPTH/CPTL/VCP. |
Key Features
| Feature | Design Value |
|---|---|
| Smart Gate Drive Architecture | Configurable 45-level peak current + three-step dynamic control minimizes switching losses while maintaining robust turn-on/turn-off timing across load and temperature. |
| Trickle Charge Pump | Enables true 100% PWM duty cycle operation and generates overdrive voltage (up to 13.5 V) for external protection circuits - eliminates dead-time limitations in high-duty applications. |
| Sub-1mV Current Sense Offset | Ensures ≤0.5% full-scale error in 50 mΩ shunt-based current measurement at 25 A, even at 125°C - critical for torque accuracy in power tools. |
| Integrated VDS/VGS Monitoring | Detects MOSFET short-circuit and gate faults in real time, reducing reliance on external comparators and improving system safety integrity. |
| 6x/3x/1x PWM Mode Flexibility | Supports trapezoidal (6x), sinusoidal (3x), and field-oriented (1x) control schemes - simplifies firmware reuse across appliance, tool, and mobility platforms. |
Applications
| Power Tools | E-Bikes & E-Scooters |
|---|---|
|
Use Scenario: Cordless drill/driver with 18–60V Li-ion battery pack and 3-phase BLDC motor. IC Role / Device Role / Timing Role: Three-phase gate driver with integrated current sensing and fault protection - replaces discrete gate drivers + op-amps + comparators. Use Value: Enables compact, thermally efficient inverter design with <1.5 ms fault response time and ±0.5% current measurement accuracy at full load. |
Use Scenario: Mid-drive e-bike controller supporting 250–500W continuous power and regenerative braking. IC Role / Device Role / Timing Role: Smart gate driver managing high-side/low-side MOSFET switching, phase current feedback, and thermal derating. Use Value: Reduces BOM count by 7 components vs. discrete solution; supports 100% duty cycle for zero-speed torque hold during hill starts. |
| Appliances & Lawn Equipment | Industrial Robots & Drones |
|
Use Scenario: Brushless vacuum cleaner motor with variable speed control and stall detection. IC Role / Device Role / Timing Role: Integrated gate driver and current monitor enabling closed-loop RPM and torque control via SPI-configured PWM modes. Use Value: Achieves >92% inverter efficiency at 20 kHz; built-in VDS monitoring detects brushless motor lock-up within 2 µs. |
Use Scenario: Payload delivery drone with dual BLDC propulsion motors and real-time telemetry. IC Role / Device Role / Timing Role: High-reliability gate driver with SPI-accessible fault logs and thermal warning - supports predictive maintenance. Use Value: Delivers 150°C junction-safe operation with 23.7°C/W θJA (QFN), enabling fanless designs in compact airframes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase smart gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8323RSRT | 40V max supply, no trickle charge pump, fixed 1.5A peak sink, no VDS monitor | Limited to lower-voltage (<40V) tools; cannot support 100% duty cycle or high-side drain monitoring | Select DRV8323RSRT only for cost-sensitive, lower-power (<300W) applications where VDS protection and extended duty cycle are not required. |
| MP6550GQ-Z | 4.5–45V supply, 2.5A peak sink, no integrated current sense amps, SPI-only config (no HW pins) | Lacks analog current sense outputs and dedicated DRVOFF/nSLEEP pins - requires external amplifiers and logic glue | Choose MP6550GQ-Z when SPI-only control suffices and external current sensing is already part of the system architecture. |
Compared with DRV8334PHPR, DRV8323RSRT trades off voltage range and protection features for lower cost, while MP6550GQ-Z shifts sensing complexity to external circuitry - making DRV8334PHPR the only option with integrated 60V-rated gate drive, sub-1mV current sensing, and full diagnostic coverage in a single package.
Availability
DRV8334PHPR is available at Aetrix Electronics and suitable for cordless power tools, e-mobility drivetrains, and industrial BLDC motor control systems requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.
Supply support for DRV8334PHPR 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 and automotive-qualified process expertise.
DRV8334PHPR belongs to TI's DRV833x smart gate driver family, designed specifically for high-efficiency, high-reliability three-phase BLDC/PMSM inverters in portable and industrial equipment - emphasizing integration, diagnostics, and thermal robustness.
FAQ
What is the maximum MOSFET gate charge DRV8334PHPR can drive reliably?
DRV8334PHPR supports driving MOSFETs with up to 400 nC total gate charge at 20 kHz using its strong GVDD charge pump delivering 50 mA average gate switching current. This capability is validated under TJ = 150°C and PVDD = 24 V–60 V conditions per TI SLVSHC7B Section 5.5, ensuring reliable turn-on/turn-off without external boost stages.
Does DRV8334PHPR support 100% PWM duty cycle operation?
Yes, DRV8334PHPR supports true 100% PWM duty cycle via its integrated trickle charge pump (CPTH/CPTL/VCP), which maintains high-side gate voltage even when low-side FETs remain continuously on. This is confirmed in Section 1 Features and Section 3 Description of the SLVSHC7B datasheet, enabling zero-speed torque hold in e-bike and robotic applications.
How does the low-side current sense amplifier in DRV8334PHPR achieve sub-1mV offset?
The DRV8334PHPR uses laser-trimmed, matched input transistor pairs and chopper-stabilized architecture to maintain input offset voltage below 1 mV across –40°C to +125°C. This is specified in Section 5.5 Electrical Characteristics (Table 5-5) and enables accurate current measurement with 50 mΩ shunts at full-scale currents up to 30 A.
Can DRV8334PHPR be used with both 3.3V and 5V microcontrollers?
Yes, DRV8334PHPR logic inputs (INHx, INLx, SCLK, SDI, nSCS, nSLEEP, DRVOFF) are fully compatible with 3.3 V and 5 V CMOS levels. VIH is 2.1 V min and VIL is 0.8 V max for standard inputs, and nSLEEP accepts up to 60 V - allowing direct interface with mixed-voltage MCU systems without level shifters.
What thermal performance can be expected from DRV8334PHPR in HTQFP-48 package?
In the HTQFP-48 (PHP) package, DRV8334PHPR achieves RθJA = 27.0°C/W (JEDEC JESD51-7), RθJB = 11.0°C/W, and RθJC(bot) = 1.1°C/W. With proper PCB copper area under the exposed thermal pad, it sustains 150°C junction temperature at 5 W dissipation - validated in Section 5.4 Thermal Information of SLVSHC7B.
DRV8334PHPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-PowerTQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Driven Configuration:
- Half-Bridge
- Channel Type:
- 3-Phase
- Number of Drivers:
- 6
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 4.5V ~ 60V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.1V
- Current - Peak Output (Source, Sink):
- 1A, 2A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 65 V
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-HTQFP (7x7)
DRV8334PHPR FAQ
1.How can I place an order for DRV8334PHPR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8334PHPR 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 DRV8334PHPR reliable?
The price and inventory of DRV8334PHPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8334PHPR is usually 5 days.
3.What payment methods are accepted for DRV8334PHPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8334PHPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8334PHPR?
DRV8334PHPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8334PHPR 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 DRV8334PHPR?
For technical support, including DRV8334PHPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8334PHPR requirements.
6.How does Aetrix verify that DRV8334PHPR is sourced from the original manufacturer or authorized distributors?
All DRV8334PHPR 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 DRV8334PHPR meets industry standards.
7.What is the process for return or replacement of DRV8334PHPR?
All DRV8334PHPR units undergo pre-shipment inspection (PSI). If there is an issue with DRV8334PHPR, 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 DRV8334PHPR part is unused and in its original packaging.
Return procedure for DRV8334PHPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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