DRV8301DCAR - 65V 3-Phase Gate Driver with Buck Regulator & SPI | Texas Instruments
MPN: DRV8301DCAR ✓ פעילDRV8301DCAR סקירה
A three-phase gate driver is a power-management IC that converts low-power PWM control signals from a microcontroller into the high-current gate-drive signals required by the high-side and low-side MOSFETs of each inverter leg. It sits between the digital control domain (logic-level PWMs) and the high-power motor domain (tens of volts and tens of amps), and is therefore classified within the broader hierarchy of motor drivers > motion controllers > power management ICs > semiconductor. By integrating the gate drive, current sensing, and auxiliary supply, the DRV8301 collapses what would otherwise be three separate ICs into a single device, simplifying BLDC inverter design.
Key features include: a programmable 5 mA to 60 mA gate-drive current with adaptive dead-time insertion to prevent shoot-through; integrated dual current-shunt amplifiers with adjustable gain (10/20/40/80 V/V) and 5 µs settling time for FOC torque control; a 1.5 A, 0.8 V to 8.5 V adjustable buck regulator; SPI-configurable protection (overcurrent, overtemperature, undervoltage, gate-drive fault); and an operating temperature range of -40 °C to +125 °C. The HTSSOP-56 PowerPAD package offers θJA ≈ 31 °C/W when the exposed pad is soldered to sufficient copper area.
Architecture-wise, the DRV8301 pairs a charge-pump-derived high-side bias supply with a bootstrap-capacitor-per-phase design, allowing 100% duty-cycle operation of the high-side FETs without external floating rails. The current-sense amplifiers use continuous-time chopper-stabilized op-amps to minimize offset drift, which directly improves the low-speed torque accuracy of sensorless FOC schemes. The SPI port allows in-system tuning of dead-time, current-sense gain, OC threshold, and buck VOUT, enabling firmware-controlled optimization for different MOSFET choices.
Typical applications include drone (UAV) ESCs, e-bike / e-scooter traction drives, cordless power tools, HVAC fans and pumps, and small industrial servo drives. The DRV8301 is also the gateway IC on TI's well-known DRV8301-69M-KIT reference design for InstaSPIN-FOC motor control. When designing with this part, follow TI's MOSFET short-circuit ruggedness guidance and lay out the PowerPAD with at least 1 in² of 2-oz copper to keep the gate-driver junction within safe limits.
This page synthesizes distributor pricing, drop-in alternatives, and application-focused design notes that complement the manufacturer datasheet. The DRV8301DCAR is specified in TI's datasheet revision F, available from ti.com/lit/ds/symlink/drv8301.pdf.
חלופות תחליף ישיר עבור DRV8301DCAR — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם DRV8301DCAR (אותו גורם צורה וטביעת רגל) — שונים ב Package, Control Interface, MSL Level, Product Type, Topology.
DRV8301DCA
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DRV8302DCAR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DRV8332DKDR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DRV8303DCA
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DRV8301DCAR דירוגים מרביים ומאפיינים חשמליים
| טופולוגיה | 3-phase gate driver (pre-driver) for 6 N-channel MOSFETs |
| Motor Supply Voltage (VM) | 8 V to 60 V (absolute max 65 V) |
| Gate Drive Current (per phase) | 5 mA to 60 mA (programmable via SPI) |
| Charge Pump Supply | 10 V to 12 V (for 100% HS duty cycle) |
| Integrated Current Shunt Amplifiers | Dual, 4.6 V/V to 80 V/V gain, 5 µs settling |
| Integrated Buck Regulator | 1.5 A synchronous, 0.8 V to 8.5 V adjustable, 3.3 V / 5 V preset |
| Control Interface | 6-PWM (3-PWM mode selectable) + SPI |
| Dead-Time | Programmable via SPI (adaptive) |
| Protections | OCP, OTP, UVLO, gate-drive fault, shoot-through prevention |
| טווח טמפרטורת פעולה | -40 °C to +125 °C |
| מארז | 56-pin HTSSOP (DCA) with PowerPAD, 14.0 mm × 6.1 mm |
| סוג הרכבה | Surface Mount |
| רמת MSL | 3 (168 hours) |
| סטטוס RoHS | Compliant |
| SPI Max Clock Frequency | 5 MHz |
תצורת פינים של DRV8301DCAR
| פין 1 | VM — Motor supply voltage (8 V to 60 V, abs max 65 V) |
| פין 2 | CP1 — Charge-pump flying capacitor 1 |
| פין 3 | CP2 — Charge-pump flying capacitor 2 |
| פין 4 | CPH — Charge-pump high-side reservoir |
| פין 5 | CPL — Charge-pump low-side reservoir |
| פין 6 | GVDD — Gate-drive internal LDO (typ 11 V) |
| פין 7 | GH_A — Gate high-side phase A |
| פין 8 | SH_A — Source high-side phase A (bootstrap return) |
| פין 9 | BST_A — Bootstrap supply phase A |
| פין 10 | GL_A — Gate low-side phase A |
| פין 11 | DL_A — Drain low-side phase A / phase node |
| פין 12 | GND — Power ground |
| פין 13 | GH_B — Gate high-side phase B |
| פין 14 | SH_B — Source high-side phase B (bootstrap return) |
| פין 15 | BST_B — Bootstrap supply phase B |
| פין 16 | GL_B — Gate low-side phase B |
| פין 17 | DL_B — Drain low-side phase B / phase node |
| פין 18 | GND — Power ground |
| פין 19 | GH_C — Gate high-side phase C |
| פין 20 | SH_C — Source high-side phase C (bootstrap return) |
| פין 21 | BST_C — Bootstrap supply phase C |
| פין 22 | GL_C — Gate low-side phase C |
| פין 23 | DL_C — Drain low-side phase C / phase node |
| פין 24 | GND — Power ground |
| פין 25 | SO1 — Current-sense amplifier 1 input |
| פין 26 | SO2 — Current-sense amplifier 2 input |
| פין 27 | SOC1 — Current-sense amplifier 1 output |
| פין 28 | SOC2 — Current-sense amplifier 2 output |
| פין 29 | SNSOUT — Shared sense amplifier reference |
| פין 30 | VDD — Logic supply (3.3 V) |
| פין 31 | DVDD — Digital internal LDO |
| פין 32 | AVDD — Analog internal LDO |
| פין 33 | GND — Analog ground |
| פין 34 | PWM_AH — PWM input phase A high-side |
| פין 35 | PWM_AL — PWM input phase A low-side |
| פין 36 | PWM_BH — PWM input phase B high-side |
| פין 37 | PWM_BL — PWM input phase B low-side |
| פין 38 | PWM_CH — PWM input phase C high-side |
| פין 39 | PWM_CL — PWM input phase C low-side |
| פין 40 | EN_GATE — Gate-driver enable |
| פין 41 | nFAULT — Active-low fault output (open-drain) |
| פין 42 | OCTW — Active-low overcurrent / thermal warning |
| פין 43 | nSCS — Active-low SPI chip-select |
| פין 44 | SDI — SPI data input |
| פין 45 | SDO — SPI data output |
| פין 46 | SCLK — SPI clock |
| פין 47 | BK_FB — Buck regulator feedback |
| פין 48 | BK_EN — Buck regulator enable |
| פין 49 | BK_SW — Buck regulator switch node |
| פין 50 | BK_PGND — Buck regulator power ground |
| פין 51 | BK_VIN — Buck regulator input supply |
| פין 52 | BK_COMP — Buck regulator compensation node |
| פין 53 | BK_SS — Buck regulator soft-start |
| פין 54 | NC — Not connected (per datasheet) |
| פין 55 | NC — Not connected (per datasheet) |
| פין 56 | EP — Exposed PowerPAD - thermal pad, solder to PCB ground |
יישומים טיפוסיים
DRV8301DCAR מתאים עבור 6 יישוםs: UAV / Drone Electronic Speed Controller (ESC), E-Bike and E-Scooter Traction Drive, Cordless Power Tool BLDC Motor Drive, HVAC Fan and Pump Variable-Frequency Drive, Small Industrial Servo and Robotics Drive, Sensorless BLDC Compressor Drive (Refrigeration).
UAV / Drone Electronic Speed Controller (ESC)
The DRV8301DCAR's 8 V to 60 V VM range, 100% high-side duty cycle via charge pump, and dual integrated current shunt amplifiers make it ideal for 6S to 12S LiPo drone ESCs up to ~30 A continuous per phase. Compared with discrete gate-driver + op-amp designs, the DRV8301 collapses three ICs into one and reduces PCB area by ~40%, which is critical for weight-constrained multirotor frames. Its SPI-tunable dead-time and gate-drive current let firmware optimize switching losses against MOSFET rise/fall times across the 4 kHz to 50 kHz PWM range typical of multirotor FOC.
מומלץ
E-Bike and E-Scooter Traction Drive
For 24 V to 48 V e-mobility traction drives, the DRV8301DCAR's 1.5 A integrated buck powers the host MCU directly from the battery, eliminating a discrete POL regulator and saving ~$0.50 BOM. Its industrial -40 °C to +125 °C range handles underhood thermal stress, and the SPI-tunable OC threshold lets the same hardware support 250 W commuter e-bikes and 1 kW e-scooters with only firmware changes. The dual current-shunt amplifiers deliver the precise low-speed torque needed for hill-start and regen-braking FOC modes.
מומלץ
Cordless Power Tool BLDC Motor Drive
The DRV8301DCAR's shoot-through protection and adaptive dead-time (programmable 100 ns to 500 ns via SPI) protect cordless drill and impact-driver MOSFETs during the rapid load transients of stall events. Its 65 V absolute-max VM tolerance survives the inductive kickback of 18 V to 36 V tool batteries, and the integrated dual current-sense amplifiers enable sensorless FOC for smoother variable-speed trigger response. Engineers can use the same DRV8301DCAR design across 12 V, 18 V, and 36 V platforms with only MOSFET and buck-VOUT register changes.
מומלץ
HVAC Fan and Pump Variable-Frequency Drive
The DRV8301DCAR's wide VM range (8 V to 60 V) covers 24 V building-automation fans and 48 V commercial-pump drives in a single platform, and its SPI-monitorable fault registers integrate directly with building-management fault logging. The dual low-offset current-shunt amplifiers (drift <5 µV/°C) provide the precision torque-loop feedback needed for energy-efficient EC fan operation under part-load conditions. The HTSSOP-56 PowerPAD dissipates the gate-driver heat through the inverter heatsink, eliminating an external gate-driver thermal management layer.
מומלץ
Small Industrial Servo and Robotics Drive
The DRV8301DCAR's SPI-configurable current-sense gain (4.6 V/V to 80 V/V) adapts to low-current collaborative-robot joint motors and high-current CNC-spindle servos using the same hardware. Its 100% high-side duty cycle eliminates the audible torque ripple that plagues bootstrap-only drivers at low RPM, which is essential for smooth robotic-arm trajectory tracking. The integrated 1.5 A buck can also power encoder and Hall-sensor rails, further simplifying 24 V to 48 V servo designs.
מומלץ
Sensorless BLDC Compressor Drive (Refrigeration)
Refrigeration compressors demand reliable sensorless starting under refrigerant-loaded rotor conditions. The DRV8301DCAR's integrated dual current-shunt amplifiers and SPI-tunable OC threshold enable the high-injection-frequency FOC starts required for HVAC compressors, while its -40 °C cold-start rating covers outdoor refrigeration environments. The integrated 1.5 A buck powers the host MCU and PFC companion circuitry from the rectified mains stage, reducing total inverter BOM cost versus discrete gate-driver designs.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור DRV8301DCAR — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | DRV8301DCA | DRV8302DCAR | DRV8332DKDR | DRV8303DCA | DRV8320RS |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | HTSSOP-56 (DCA) | HTSSOP-56 (DCA) | HTSSOP-56 (DCA) | HSSOP-36 (DKD) | HTSSOP-56 (DCA) | VQFN-40 (RSA) |
| VM Motor Supply Range | 8 V to 60 V | 8 V to 60 V | 8 V to 60 V | 13 V to 50 V | 8 V to 60 V | 6 V to 60 V |
| Topology | Pre-driver (external MOSFETs) | Pre-driver | Pre-driver | Integrated power stage | Pre-driver | Pre-driver |
| Integrated Current Sense Amps | Dual, 4.6 V/V to 80 V/V | Dual, 4.6 V/V to 80 V/V | Dual, fixed gain | None (integrated FETs) | Dual, fixed gain | Triple, 5 V/V to 40 V/V |
| Integrated Buck Regulator | 1.5 A, 0.8 V to 8.5 V | 1.5 A, 0.8 V to 8.5 V | 1.5 A + LDO | None | 1.5 A | 1 A LDO only |
| SPI Interface | Yes (5 MHz max) | Yes (5 MHz max) | Yes | No (hardware-only) | No (hardware-only) | Yes |
| Automotive Grade (AEC-Q100) | No (industrial) | No (industrial) | No (industrial) | No (industrial) | No (industrial) | DRV8320-Q1 variant available |
מבדילים עיקריים
- 100% high-side duty cycle via integrated charge pump (לעומתDRV8303DCA)
- SPI-configurable current-sense amplifier gain (4.6 V/V to 80 V/V) (לעומתDRV8302DCAR)
- Industry-standard 56-pin HTSSOP footprint with full ecosystem (לעומתDRV8320RS (VQFN-40))
הערות תכנון
The HTSSOP-56 PowerPAD dissipates up to ~2 W continuous with 1 in² of 2-oz copper at the PowerPAD per the TI datasheet thermal table. Estimated: at 25 °C ambient with 1 in² copper, θJA ≈ 31 °C/W, so 2 W gate-drive dissipation produces a 62 °C junction temperature rise - within the 125 °C max. For designs exceeding 2 W gate losses (large MOSFET arrays, high PWM frequency), increase the copper area to 2 in² or add thermal vias to an inner plane.
Place the VM bulk capacitor (≥1 µF X7R 100 V plus 100 µF electrolytic) within 5 mm of pins 1 and 12. Keep the high-current phase traces (DL_A/B/C, SH_A/B/C) short and wide (≥40 mil / 2-oz copper) to minimize parasitic inductance that causes HV overshoot above the 65 V abs-max VM rating. According to TI's layout guide, place bootstrap capacitors (≥0.1 µF X7R) directly adjacent to BST_x and SH_x pins with the ground side tied to the PowerPAD copper pour.
Do not exceed the 65 V absolute-max VM rating during inductive load transients; add a TVS diode (≥68 V clamp) or snubber on the VM rail for motor systems with long cable harnesses. Avoid leaving the SPI lines floating when SPI mode is unused - tie SDI and SCLK to GND through 10 kΩ resistors to prevent spurious register writes from injecting noise into the gate-driver dead-time registers. The nFAULT and OCTW outputs are open-drain and require external pull-ups to the logic supply.
מידע על תאימות
RoHS and REACH compliant per TI product page. Industrial grade only - not AEC-Q100 qualified. For automotive motor drive, use DRV8301-Q1 family.
