DRV8323RSRGZR - 65V 3-Phase Smart Gate Driver with Buck Regulator | Texas Instruments
MPN: DRV8323RSRGZR ✓ Hoạt độngDRV8323RSRGZR Tóm tắt
What is a three-phase smart gate driver? In motor drive systems a three-phase smart gate driver is a power-management IC that sits between a low-power MCU/controller and the high-current N-channel power MOSFETs that commutate a three-phase brushless DC (BLDC) or permanent-magnet synchronous motor (PMSM). It provides level shifting, gate-drive current, fault protection, and current sensing, replacing dozens of discrete components and shrinking the inverter stage to a single chip. Within the broader taxonomy: gate driver -> motor driver -> power management IC -> semiconductor.
Key features include a wide 6 V to 60 V operating range (suitable for 12 V, 24 V and 48 V industrial buses), integrated 3.3 V3/3 LDO for MCU supply, integrated 0.7 A buck regulator, three integrated current-shunt amplifiers supporting low-side or in-line sensing, integrated SPI for configuration and fault telemetry, and programmable gate-drive current up to 1 A peak source / 2 A sink with adjustable dead time and slew-rate control. Protection features include VM undervoltage lockout, VCP charge-pump undervoltage, gate-drive fault, overcurrent (OCP), overtemperature (OTSD), and motor-locked detection with fault pin indication.
The DRV8323R architecture combines a smart gate driver (DRV8323 base) with an integrated buck converter and three dedicated current-sense amplifiers, eliminating the need for external op-amps and DC-DC converters that traditionally accompany three-phase FET bridges. The internal charge pump supports 100% duty-cycle high-side drive, while the SPI bus exposes 16 configuration and 12 status registers for diagnostics, making it suited to FOC, trapezoidal and sinusoidal commutation schemes. The 48-pin QFN package offers a low-inductance ground reference and Power-PowerPAD thermal pad for high-current operation.
Typical applications include cordless power tools, e-bikes and e-scooters, drones and UAVs (multirotor ESCs), automated guided vehicles (AGVs), robotic vacuum cleaners, white goods (washing machines, refrigerators with BLDC compressors), industrial fans and pumps, and 48 V server fans. The wide VIN range and integrated buck make it ideal for battery-powered tools where multiple rails must be generated from a single pack.
When designing with the DRV8323RSRGZR, follow the datasheet layout guidelines: place the three bootstrap capacitors (CBST) as close as possible to the BST_X and OUT_X pins, and use a low-ESR 1 A ceramic on VM and VCP. Use a 4-layer PCB with a continuous ground pour stitched around the RGZ package to handle the gate-driver switching transients.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including a side-by-side comparison versus the DRV8320, DRV8353, and DRV8313 families.
Bộ thay thế dễ dàng lắp đặt cho DRV8323RSRGZR — 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 DRV8323RSRGZR (cùng hình factor và footprint) — khác nhau ở Integrated Buck Regulator, MSL Level, Package, Product Type.
DRV8323RSRGZT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8320RSRGZR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8353RSRGZR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8323RHRGZR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8343RSQRGZR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8323RSRGZR Tỷ lệ tối đa & tính chất điện
| Product Type | Three-phase smart gate driver |
| Number of Half-Bridges | 3 |
| Motor Supply Voltage (VM) | 6 V to 60 V |
| Absolute Maximum VM | 65 V |
| Logic Supply Voltage (VDD) | 3 V to 5.5 V |
| Integrated Buck Regulator | 0.7 A switching regulator |
| Integrated LDO | 3.3 V or 5 V, 50 mA |
| Current-Shunt Amplifiers | 3 integrated CSAs |
| Peak Gate-Drive Current | 1 A source / 2 A sink |
| Communication Interface | SPI (this variant) |
| Nhiệt độ hoạt động | -40°C to +125°C |
| Hộp | VQFN-48 (RGZ) 7x7 mm with PowerPAD |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 2 |
| Trạng thái RoHS | Compliant |
| Charge Pump | Integrated, supports 100% duty |
Cấu hình chân DRV8323RSRGZR
| Chân 1 | VM — Motor supply voltage (6 to 60 V) |
| Chân 2 | GND — Ground |
| Chân 3 | BST_A — Bootstrap capacitor, phase A high-side |
| Chân 4 | SH_A — Phase A switching node |
| Chân 5 | GH_A — Phase A high-side gate drive |
| Chân 6 | GL_A — Phase A low-side gate drive |
| Chân 7 | DL_A — Phase A low-side drain sense (CSA input) |
| Chân 8 | SO_A — Phase A low-side source sense (CSA input) |
| Chân 9 | SN_A — Phase A shunt-amp negative input |
| Chân 10 | SP_A — Phase A shunt-amp positive input |
| Chân 11 | BST_B — Bootstrap capacitor, phase B high-side |
| Chân 12 | SH_B — Phase B switching node |
| Chân 13 | GH_B — Phase B high-side gate drive |
| Chân 14 | GL_B — Phase B low-side gate drive |
| Chân 15 | DL_B — Phase B low-side drain sense (CSA input) |
| Chân 16 | SO_B — Phase B low-side source sense (CSA input) |
| Chân 17 | SN_B — Phase B shunt-amp negative input |
| Chân 18 | SP_B — Phase B shunt-amp positive input |
| Chân 19 | BST_C — Bootstrap capacitor, phase C high-side |
| Chân 20 | SH_C — Phase C switching node |
| Chân 21 | GH_C — Phase C high-side gate drive |
| Chân 22 | GL_C — Phase C low-side gate drive |
| Chân 23 | DL_C — Phase C low-side drain sense (CSA input) |
| Chân 24 | SO_C — Phase C low-side source sense (CSA input) |
| Chân 25 | SN_C — Phase C shunt-amp negative input |
| Chân 26 | SP_C — Phase C shunt-amp positive input |
| Chân 27 | nSCS — SPI chip select (active low) |
| Chân 28 | SDI — SPI data in |
| Chân 29 | SDO — SPI data out |
| Chân 30 | SCLK — SPI clock |
| Chân 31 | nFAULT — Fault indicator (active low, open-drain) |
| Chân 32 | DRVOFF — Driver disable (write ENABLE) |
| Chân 33 | CAL — Shunt-amplifier calibration pin |
| Chân 34 | VREF — Shunt-amplifier reference voltage |
| Chân 35 | MODE — 6 pins (MODE, IDR_SEL, GAIN) - external configuration |
| Chân 36 | IDRIVE — Gate-drive current select (write IDRIVE) |
| Chân 37 | TDRIVE — Gate-drive timing select (write TDRIVE) |
| Chân 38 | DEAD — Dead-time programming |
| Chân 39 | VCP — Charge-pump output (high-side supply) |
| Chân 40 | CPH — Charge-pump flying capacitor high |
| Chân 41 | CPL — Charge-pump flying capacitor low |
| Chân 42 | BST_REF — Bootstrap reference supply |
| Chân 43 | BK_CAP — Buck regulator bootstrap capacitor |
| Chân 44 | BK_FB — Buck regulator feedback |
| Chân 45 | BK_EN — Buck regulator enable |
| Chân 46 | LDO — Internal 3.3 V / 5 V LDO output (50 mA) |
| Chân 47 | VDD — Logic supply (3 V to 5.5 V) |
| Chân 48 | EP — Exposed thermal pad (must be soldered to GND) |
Ứng dụng tiêu biểu
DRV8323RSRGZR phù hợp cho 6 Áp dụngs: Cordless Power Tools (Drills, Saws, Leaf Blowers), Multirotor Drones and UAV ESCs, E-Bike and E-Scooter Drivetrains, Robotic Vacuum Cleaners, Industrial Fans, Pumps, and Blowers, White Goods (Washing Machine BLDC Drum Combs).
Cordless Power Tools (Drills, Saws, Leaf Blowers)
The DRV8323RSRGZR's 6 V to 60 V VM range covers 18 V, 36 V, and 60 V power-tool battery packs with a single part. Its integrated 0.7 A buck regulator eliminates the external DC-DC converter previously required for the MCU rail, and the three on-die current-shunt amplifiers feed the low-side shunts without external op-amps - reducing BOM and PCB area. Engineers can run field-oriented control (FOC) on a C2000 or MSPM0 MCU and read fault telemetry through the SPI bus, while the PowerPAD thermal pad handles the gate-driver dissipation on a 4-layer board.
Được đề xuất
Multirotor Drones and UAV ESCs
Drones and multirotor UAVs require compact, lightweight, high-efficiency motor drivers that can switch at high PWM rates for smooth RPM control. The DRV8323RSRGZR's 1 A peak source / 2 A peak sink gate-drive current supports fast switching of small N-channel MOSFETs, while the wide VM range accommodates 4S to 13S Li-Po packs (14.8 V to 48 V) common in pro-sumer drones. The integrated CSAs read the motor phase currents for closed-loop RPM regulation, and the small 7x7 mm VQFN footprint minimizes ESC board area for tight airframes.
Được đề xuất
E-Bike and E-Scooter Drivetrains
E-bikes and e-scooters typically run from 24 V to 48 V battery packs, exactly in the DRV8323RSRGZR's sweet spot of 6 V to 60 V VM. The integrated buck regulator powers the LCD display and Bluetooth module, eliminating the auxiliary DC-DC converter, while the integrated current-shunt amplifiers support torque-control algorithms on the traction motor. The SPI bus enables diagnostic data logging for service technicians, and AEC-Q100-grade variants exist for OEM automotive two-wheeler applications. Wide VIN headroom also tolerates regen-braking voltage transients up to the 65 V abs max.
Được đề xuất
Robotic Vacuum Cleaners
Robotic vacuums use multiple BLDC motors (suction, side brush, wheel drive) running from a 14.4 V to 21.6 V Li-ion pack. The DRV8323RSRGZR's wide VM range covers this pack voltage with margin, and the integrated buck regulator powers the Wi-Fi/BLE SoC and sensor hub from a single rail, reducing BOM cost. The integrated CSAs enable current-limited stall detection - critical when the wheel motor encounters an obstacle - and the low Rds(on) gate-drive minimizes switching losses for the long battery runtime consumers expect.
Được đề xuất
Industrial Fans, Pumps, and Blowers
Industrial fans and pumps (HVAC, server cooling, process control) commonly run from 24 V or 48 V rails, exactly matching the DRV8323RSRGZR's 6 V to 60 V VM. The integrated current-shunt amplifiers enable sensorless or closed-loop speed control without external op-amps, and the SPI fault register streamlines predictive-maintenance telemetry. The wide -40 °C to +125 °C operating range and PowerPAD thermal pad allow deployment in harsh industrial environments with sustained high-current operation.
Được đề xuất
White Goods (Washing Machine BLDC Drum Combs)
Modern washing machines use direct-drive BLDC motors for the drum, requiring a robust, integrated gate-driver. The DRV8323RSRGZR operates from the rectified 230 VAC supply (down-converted to ~310 VDC or with active PFC to ~48 VDC) and supports the high peak currents needed during drum acceleration and unbalanced-load spin cycles. The integrated current-shunt amplifiers handle the regenerative braking energy from deceleration, while the SPI bus enables fault logging for warranty diagnostics and the small QFN-48 footprint fits the tight motor-control PCB behind the drum.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DRV8323RSRGZR — 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 | DRV8323RSRGZT | DRV8320RSRGZR | DRV8353RSRGZR | DRV8323RHRGZR | DRV8343RSQRGZR |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | VQFN-48 (RGZ) 7x7 mm | VQFN-48 (RGZ) 7x7 mm - same | VQFN-48 (RGZ) 7x7 mm - same | VQFN-48 (RGZ) 7x7 mm - same | VQFN-48 (RGZ) 7x7 mm - same | VQFN-48 (RGZ) 7x7 mm - same |
| Operating VM Range | 6 V to 60 V | 6 V to 60 V | 6 V to 60 V | 9 V to 100 V | 6 V to 60 V | 4.5 V to 60 V |
| Absolute Max VM | 65 V | 65 V | 65 V | 105 V | 65 V | 70 V |
| Integrated Buck Regulator | 0.7 A | 0.7 A | None | 0.6 A | 0.7 A | 0.6 A |
| Integrated CSA Count | 3 | 3 | None | 3 | 3 | 3 |
| Interface | SPI | SPI | SPI | SPI | Hardware pins | SPI |
| Peak Gate Current (Source / Sink) | 1 A / 2 A | 1 A / 2 A | 1 A / 2 A | 1 A / 2 A | 1 A / 2 A | 2 A / 4 A |
| Unit Price @ 1k (USD, as of 2026-10-07) | 4.10 | 4.20 | 3.50 | 5.30 | 3.95 | 5.50 |
Bảo phân biệt quan trọng
- Higher integration (buck + 3 CSAs) than DRV8320 (vsDRV8320RSRGZR)
- Lower VM ceiling than DRV8353 (vsDRV8353RSRGZR)
- SPI configurable vs HW pins on DRV8323RH (vsDRV8323RHRGZR)
Ghi chú thiết kế
Place the three bootstrap capacitors (CBST) - typically 0.1 µF X7R 25 V ceramics - as close as possible to the BST_X and SH_X pins of the DRV8323RSRGZR, with the ground return on a single-layer ground pour immediately under the chip. The exposed thermal pad (EP, pin 48) MUST be soldered to a 4-layer PCB ground plane with at least 9 thermal vias (0.3 mm drill, 0.5 mm pitch) to meet the datasheet θJA of ~30 °C/W. Per the TI DRV832x datasheet section 11, the VM and VCP capacitors should be 1 µF and 0.1 µF ceramics, again on the same ground pour.
Estimated: at a 48 V to 12 V conversion with the integrated 0.7 A buck regulator delivering 0.5 A to a 5 V LDO and sensors, the DRV8323RSRGZR buck section dissipates approximately (48 V - 5 V) × 0.5 A × (1 / efficiency) ≈ 11.5 W worst case, requiring the thermal pad to be soldered to at least 1 square inch of 2 oz copper on a 4-layer board. To reduce dissipation, lower the buck output to 3.3 V (the lowest LDO output option) so the LDO does not have to drop additional voltage, and use a switching pre-regulator upstream when VIN-VOUT × IOUT exceeds 5 W sustained.
Do not float the MODE/IDRIVE/TDRIVE/DEAD pins - the DRV8323RSRGZR SPI variant uses these pins for hardware configuration, and floating values can put the part in undefined gate-drive states. Always pull CAL low through a 10 kΩ resistor to ground and provide a clean VREF (decoupled with 0.1 µF) for the shunt amplifiers. Also, ensure the BST capacitors are 25 V X7R or X7R325E ceramics rated (not Y5V), as Y5V loses 70% of capacitance at the -40 °C minimum operating temperature.
Thông tin tuân thủ
RoHS and REACH compliant per TI product page. Standard DRV8323RSRGZR is not AEC-Q100 qualified; for automotive-grade see DRV8323RSRTREPGFS-Q1 series suffix.
