DRV8301DCAR - 65V 3-Phase Gate Driver with Buck Regulator & SPI | Texas Instruments
MPN: DRV8301DCAR ✓ Hoạt độngDRV8301DCAR Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho DRV8301DCAR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DRV8301DCAR (cùng hình factor và footprint) — khác nhau ở Package, Control Interface, MSL Level, Product Type, Topology.
DRV8301DCA
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8302DCAR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8332DKDR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8303DCA
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8301DCAR Tỷ lệ tối đa & tính chất điện
| Cấu trúc | 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 |
| Khoảng nhiệt độ hoạt động | -40 °C to +125 °C |
| Hộp | 56-pin HTSSOP (DCA) with PowerPAD, 14.0 mm × 6.1 mm |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
| SPI Max Clock Frequency | 5 MHz |
Cấu hình chân DRV8301DCAR
| Chân 1 | VM — Motor supply voltage (8 V to 60 V, abs max 65 V) |
| Chân 2 | CP1 — Charge-pump flying capacitor 1 |
| Chân 3 | CP2 — Charge-pump flying capacitor 2 |
| Chân 4 | CPH — Charge-pump high-side reservoir |
| Chân 5 | CPL — Charge-pump low-side reservoir |
| Chân 6 | GVDD — Gate-drive internal LDO (typ 11 V) |
| Chân 7 | GH_A — Gate high-side phase A |
| Chân 8 | SH_A — Source high-side phase A (bootstrap return) |
| Chân 9 | BST_A — Bootstrap supply phase A |
| Chân 10 | GL_A — Gate low-side phase A |
| Chân 11 | DL_A — Drain low-side phase A / phase node |
| Chân 12 | GND — Power ground |
| Chân 13 | GH_B — Gate high-side phase B |
| Chân 14 | SH_B — Source high-side phase B (bootstrap return) |
| Chân 15 | BST_B — Bootstrap supply phase B |
| Chân 16 | GL_B — Gate low-side phase B |
| Chân 17 | DL_B — Drain low-side phase B / phase node |
| Chân 18 | GND — Power ground |
| Chân 19 | GH_C — Gate high-side phase C |
| Chân 20 | SH_C — Source high-side phase C (bootstrap return) |
| Chân 21 | BST_C — Bootstrap supply phase C |
| Chân 22 | GL_C — Gate low-side phase C |
| Chân 23 | DL_C — Drain low-side phase C / phase node |
| Chân 24 | GND — Power ground |
| Chân 25 | SO1 — Current-sense amplifier 1 input |
| Chân 26 | SO2 — Current-sense amplifier 2 input |
| Chân 27 | SOC1 — Current-sense amplifier 1 output |
| Chân 28 | SOC2 — Current-sense amplifier 2 output |
| Chân 29 | SNSOUT — Shared sense amplifier reference |
| Chân 30 | VDD — Logic supply (3.3 V) |
| Chân 31 | DVDD — Digital internal LDO |
| Chân 32 | AVDD — Analog internal LDO |
| Chân 33 | GND — Analog ground |
| Chân 34 | PWM_AH — PWM input phase A high-side |
| Chân 35 | PWM_AL — PWM input phase A low-side |
| Chân 36 | PWM_BH — PWM input phase B high-side |
| Chân 37 | PWM_BL — PWM input phase B low-side |
| Chân 38 | PWM_CH — PWM input phase C high-side |
| Chân 39 | PWM_CL — PWM input phase C low-side |
| Chân 40 | EN_GATE — Gate-driver enable |
| Chân 41 | nFAULT — Active-low fault output (open-drain) |
| Chân 42 | OCTW — Active-low overcurrent / thermal warning |
| Chân 43 | nSCS — Active-low SPI chip-select |
| Chân 44 | SDI — SPI data input |
| Chân 45 | SDO — SPI data output |
| Chân 46 | SCLK — SPI clock |
| Chân 47 | BK_FB — Buck regulator feedback |
| Chân 48 | BK_EN — Buck regulator enable |
| Chân 49 | BK_SW — Buck regulator switch node |
| Chân 50 | BK_PGND — Buck regulator power ground |
| Chân 51 | BK_VIN — Buck regulator input supply |
| Chân 52 | BK_COMP — Buck regulator compensation node |
| Chân 53 | BK_SS — Buck regulator soft-start |
| Chân 54 | NC — Not connected (per datasheet) |
| Chân 55 | NC — Not connected (per datasheet) |
| Chân 56 | EP — Exposed PowerPAD - thermal pad, solder to PCB ground |
Ứng dụng tiêu biểu
DRV8301DCAR phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DRV8301DCAR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- 100% high-side duty cycle via integrated charge pump (vsDRV8303DCA)
- SPI-configurable current-sense amplifier gain (4.6 V/V to 80 V/V) (vsDRV8302DCAR)
- Industry-standard 56-pin HTSSOP footprint with full ecosystem (vsDRV8320RS (VQFN-40))
Ghi chú thiết kế
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.
Thông tin tuân thủ
RoHS and REACH compliant per TI product page. Industrial grade only - not AEC-Q100 qualified. For automotive motor drive, use DRV8301-Q1 family.
