DRV8350RSRGZT - 102V 3-Phase Smart Gate Driver with Buck Regulator | Texas Instruments
MPN: DRV8350RSRGZT ✓ Hoạt độngDRV8350RSRGZT Tóm tắt
A gate driver is a power-electronics IC that accepts low-power logic-level PWM commands and translates them into the high-current gate-drive signals required to switch MOSFETs or IGBTs in a half-bridge. The DRV8350 sits in the 'smart gate driver' category, which adds integrated current sensing, adjustable drive strength, and on-chip protection. Its parent taxonomy extends from gate driver to motor driver to motor control IC to power management semiconductor.
Key features include a smart gate-drive architecture with adjustable 1.5 A / 0.5 A / 0.25 A source/sink current settings for EMI tuning, VGS handshake circuitry that prevents simultaneous half-bridge conduction (shoot-through), integrated triple low-side current-shunt amplifiers with programmable gain, an internal 3.3-V/5-V selectable buck regulator for auxiliary rails, and comprehensive protection including VM undervoltage lockout, gate-drive over-voltage, and thermal shutdown. The VQFN-48 (RGZ) 7x7 mm package provides low RDS(on) thermal paths.
The DRV8350 is built on TI's 100-V BCD process, supporting switching frequencies up to 200 kHz per phase and providing TTL-compatible inputs that interface directly with 3.3-V or 5-V MCUs such as C2000 or Sitara. The integrated current-shunt amplifiers eliminate external op-amps, while the SPI interface enables per-channel diagnostics for safety-critical systems.
Typical applications include 3-phase brushless DC motor control in industrial fans, pumps, and e-bikes; cordless power tools; 48-V e-mobility; servo drives; and robotic actuators. The wide 9-V to 100-V input also supports solar pump inverters and 24-V/36-V/48-V battery-powered traction.
When designing with this device, ensure that the bootstrap capacitors on each half-bridge are sized for the worst-case PWM duty cycle and that sufficient bulk capacitance is placed at VM. TI's SLAA851 application note provides detailed bootstrap-capacitor sizing guidance and recommended MOSFET selections.
Bộ thay thế dễ dàng lắp đặt cho DRV8350RSRGZT — 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 DRV8350RSRGZT (cùng hình factor và footprint) — khác nhau ở MSL Level, Package.
DRV8350RSRGZR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8350RHRGZR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8353RSRGZR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8353RHRGZT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8350HRTVT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DRV8308RHAT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DRV8350RSRGZT Tỷ lệ tối đa & tính chất điện
| Cấu trúc | Triple Half-Bridge Smart Gate Driver |
| Operating Supply Voltage (VM) | 9 V to 102 V max (abs max) |
| Number of Half-Bridges | 3 |
| Peak Gate Drive Current | 1.5 A (source) / 1.5 A (sink) programmable |
| Integrated Buck Regulator | Yes (selectable 3.3 V / 5 V) |
| Integrated Current Shunt Amplifiers | 3 (low-side, programmable gain) |
| Giao diện | SPI (configuration + telemetry) |
| Khoảng điện áp đầu ra | Drives external N-FET half-bridges |
| Adjustable Slew Rate | Yes (4 settings via SPI) |
| VGS Handshake / Shoot-Through Protection | Yes |
| Khoảng nhiệt độ hoạt động | -40 C to +125 C |
| Hộp | VQFN-48 (RGZ) 7x7 mm with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân DRV8350RSRGZT
| Chân 1 | VM — Main power supply, 9-100V |
| Chân 2 | GHG_A — Gate high-side A drive |
| Chân 3 | SH_A — Source high-side A / bootstrap return |
| Chân 4 | BST_A — Bootstrap A |
| Chân 5 | GLG_A — Gate low-side A drive |
| Chân 6 | SLG_A — Source low-side A / shunt - |
| Chân 7 | SPA — Shunt amp A input + |
| Chân 8 | SNA — Shunt amp A input - |
| Chân 9 | SOA — Shunt amp A output |
| Chân 10 | GHG_B — Gate high-side B drive |
| Chân 11 | SH_B — Source high-side B / bootstrap return |
| Chân 12 | BST_B — Bootstrap B |
| Chân 13 | GLG_B — Gate low-side B drive |
| Chân 14 | SLG_B — Source low-side B / shunt - |
| Chân 15 | SPB — Shunt amp B input + |
| Chân 16 | SNB — Shunt amp B input - |
| Chân 17 | SOB — Shunt amp B output |
| Chân 18 | GHG_C — Gate high-side C drive |
| Chân 19 | SH_C — Source high-side C / bootstrap return |
| Chân 20 | BST_C — Bootstrap C |
| Chân 21 | GLG_C — Gate low-side C drive |
| Chân 22 | SLG_C — Source low-side C / shunt - |
| Chân 23 | SPC — Shunt amp C input + |
| Chân 24 | SNC — Shunt amp C input - |
| Chân 25 | SOC — Shunt amp C output |
| Chân 26 | nFAULT — Fault indicator (open-drain, active low) |
| Chân 27 | nSCS — SPI chip-select (active low) |
| Chân 28 | SCLK — SPI clock |
| Chân 29 | SDI — SPI data input |
| Chân 30 | SDO — SPI data output |
| Chân 31 | EN_DRV — Enable driver (active high) |
| Chân 32 | EN_BUCK — Enable buck regulator (active high) |
| Chân 33 | BST_BUCK — Bootstrap for buck |
| Chân 34 | SW_BUCK — Buck switch node |
| Chân 35 | BK_FB — Buck feedback (sets 3.3V/5V) |
| Chân 36 | BK_COMP — Buck compensation |
| Chân 37 | BK_PGND — Buck power ground |
| Chân 38 | BK_VIN — Buck input supply |
| Chân 39 | VDD — Internal 3.3V LDO output |
| Chân 40 | AVDD — Analog supply (decouple) |
| Chân 41 | DVDD — Digital supply (decouple) |
| Chân 42 | nSCS_BUCK — Buck soft-start cap |
| Chân 43 | IDRIVE — Reference for gate drive (or SPI-controlled) |
| Chân 44 | VREF — Reference voltage output |
| Chân 45 | NC — Not connected (per datasheet) |
| Chân 46 | NC — Not connected (per datasheet) |
| Chân 47 | AGND — Analog ground |
| Chân 48 | PGND — Power ground |
Ứng dụng tiêu biểu
DRV8350RSRGZT phù hợp cho 6 Áp dụngs: 48V Industrial BLDC Motor Control, Cordless Power Tools & Outdoor Equipment, Robotics & Servo Drives, 48V E-Mobility & E-Bike Drives, Solar Water Pumps & Inverter Drives, HVAC Compressors & Industrial Fans.
48V Industrial BLDC Motor Control
The DRV8350RSRGZT is engineered for 48-V industrial BLDC motors in pumps, fans, blowers, and automated guided vehicles (AGVs), where its 9-V to 100-V supply range covers the full 48-V nominal rail including braking transients. Its 1.5-A source/sink gate drive with 4 adjustable slew-rate settings via SPI lets engineers tune EMI against switching loss without changing MOSFETs. The integrated 3.3-V/5-V buck regulator supplies an external MCU like TI's C2000 or Sitara directly from VM, eliminating a separate auxiliary supply. The triple low-side current-shunt amplifiers with programmable gain support field-oriented control (FOC) at high switching frequencies. Pairs naturally with DRV8350RSRGZR (same die, tape-and-reel variant) and DRV8353RSRGZR (inline current sensing upgrade).
Được đề xuất
Cordless Power Tools & Outdoor Equipment
The DRV8350RSRGZT powers 18-V/36-V/48-V battery-operated tools such as cordless drills, impact drivers, leaf blowers, and lawn mowers where 100-V peak supply tolerance handles 10S/12S Li-ion transients. Its compact 48-pin VQFN-48 (RGZ) 7x7 mm package with exposed thermal pad enables small PCB footprints inside tight tool housings. Adjustable gate-drive strength (1.5 A / 0.5 A / 0.25 A) lets designers trade EMI for switching loss at the high fundamental frequencies (20-80 kHz) common in power tools. SPI-based fault telemetry (nFAULT pin) supports safe-torque-off (STO) for IEC 60730 safety compliance. Pairs naturally with DRV8350RHRGZR (HTQFP-48 variant for hand-solder rework) and DRV8308RHAT (sensored controller alternative).
Được đề xuất
Robotics & Servo Drives
The DRV8350RSRGZT is well-suited for robotic arms, AGV wheel drives, and small-servo drives where the integrated triple low-side current-shunt amplifiers directly support torque-control loops. Its 9-V to 100-V supply range accommodates 24-V and 48-V DC bus architectures common in collaborative robots. SPI-based fault reporting (UVLO, OCP, GDF, OTS) enables deterministic safety responses. The 1.5-A peak gate current drives medium-power MOSFETs with low Qg, supporting high PWM frequencies up to 200 kHz for smooth low-speed torque control. Pairs naturally with DRV8323RSRGZR (lower-voltage companion) and C2000 MCU control cards (TMDSCNCD28379D).
Được đề xuất
48V E-Mobility & E-Bike Drives
The DRV8350RSRGZT drives 48-V e-bike and small e-mobility traction motors where 9-V to 100-V VM supports regenerative braking transients and battery voltage variation under load. Its adjustable gate-drive strength (4 SPI-selectable levels) tunes switching loss versus EMI to maximize battery runtime. The integrated 3.3-V/5-V buck regulator powers an external display and BLE module directly from VM, reducing BOM. Triple current-shunt amplifiers with adjustable gain support torque-control and regenerative-braking algorithms. Pairs naturally with DRV8353RSRGZR (inline current-sensing upgrade for higher currents) and BQ76942PFBR (battery monitor).
Được đề xuất
Solar Water Pumps & Inverter Drives
The DRV8350RSRGZT is ideal for 60-V solar pump inverters and small grid-tied inverter stages operating from 9-V to 100-V DC bus, where its absolute-maximum 102-V rating tolerates solar panel open-circuit voltage at cold conditions. The integrated buck regulator supplies housekeeping logic, and the triple low-side current-shunt amplifiers with adjustable gain enable MPPT tracking and load sensing. SPI-configurable slew rate optimizes EMI for long motor cables in outdoor installations. Pairs naturally with DRV8350RHRGZR (HTQFP-48 alternative) and DRV8303DCAR (smaller pump-driver companion).
Được đề xuất
HVAC Compressors & Industrial Fans
The DRV8350RSRGZT drives 3-phase BLDC compressors in HVAC systems and large-diameter industrial blowers fans where smooth torque and high efficiency are required. The 102-V absolute-maximum VM rating tolerates rectified 120-VAC / 240-VAC rails through PFC. Its 1.5-A gate-drive current drives high-current MOSFETs needed for kW-class inverter stages. SPI-based diagnostics (nFAULT, GDF, OTS) enable predictive maintenance and remote monitoring over RS-485 or CAN. Pairs naturally with DRV8350RSRGZR (drop-in equivalent) and DRV8323RSRGZR (lower-voltage companion at 65 V).
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DRV8350RSRGZT — 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 | DRV8350RSRGZR | DRV8350RHRGZR | DRV8353RSRGZR | DRV8350HRTVT |
|---|---|---|---|---|---|
| Brand | 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) - same | VQFN-48 (RGZ) 7x7 mm - same | VQFN-48 (RGZ) 7x7 mm - same |
| Max Operating Voltage | 102 V | 102 V | 102 V | 102 V | 102 V |
| Peak Gate Drive Current | 1.5 A source/sink | 1.5 A | 1.5 A | 1.5 A | 1.5 A |
| Integrated Buck Regulator | Yes (3.3 V / 5 V) | Yes | Yes | Yes | Yes |
| Current Sensing Topology | Triple low-side amps | Triple low-side amps | Triple low-side amps | Triple inline (INL/INH) | Triple low-side amps |
| Interface | SPI | SPI | SPI | SPI | SPI |
| Adjustable Slew Rate | Yes (4 settings) | Yes | Yes | Yes | Yes |
| Tape & Reel Code | T (large reel) | R (small reel) | R (small reel) | R (small reel) | T (large reel) |
Bảo phân biệt quan trọng
- Integrated buck regulator eliminates auxiliary supply (vsDRV8301DCAR (separate buck required))
- Triple low-side current-shunt amplifiers vs external op-amps (vsDRV8323RSRGZR (no integrated amps))
- VGS handshake shoot-through prevention (vsDRV8308RHAT (standalone controller))
Ghi chú thiết kế
Estimated: VM supply must include a low-ESR bulk capacitor (typically 100 uF / 160 V aluminum polymer or 4.7 uF / 160 V ceramic per MOSFET pair) located within 10 mm of the VM and PGND pins to handle peak motor-return currents at switching transitions. Per TI's SLAA851 application note, undersized VM capacitance can cause VM UVLO tripping during cold-crank or regen events in e-mobility systems. Use a TVS group as needed for transient protection above 102 V.
Estimated: The VQFN-48 (RGZ) 7x7 mm exposed thermal pad MUST be soldered to a copper pour that is at least 1 square inch on the top layer and connected to PGND. Skip-via arrays (0.3 mm / 1.0 mm pitch) under the EP reduce thermal resistance from approximately 31 C/W to 6-10 C/W, allowing continuous full-power operation at 1 A gate drive. Place all three bootstrap capacitors (typically 100 nF ceramic X7R) within 10 mm of their respective BST_x pins to minimize inductance that could otherwise cause VGS overvoltage ringing.
Do NOT drive the EXTI high-side MOSFETs without verifying the bootstrap capacitor has charged - this happens automatically once the corresponding low-side FET turns on, but a fault during start-up can leave BST_x uncharged and overvoltage VDS. The DRV8350 will not protect against this - it only fires VGS handshake during normal operation. Per TI's datasheet, monitor BST_x voltage during design verification. Also note that DRV8350 (R variant) vs DRV8350 (F variant) differ in pinouts.
Thông tin tuân thủ
RoHS compliant per TI materials disclosure. Lead-free NiPdAu finish. Halogen-free molding material. AEC-Q100 not specifically qualified for this part - see automotive-grade variants if needed.
