DRV8350RSRGZT - 102V 3-Phase Smart Gate Driver with Buck Regulator | Texas Instruments
N.º da peça: DRV8350RSRGZT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $7.85 | $7,85 |
| 10 | $6.95 | $69,50 |
| 100 | $6.2 | $620,00 |
| 500 | $5.55 | $2.775,00 |
| 1.000 | $4.95 | $4.950,00 |
| 2.500 | $4.65 | $11.625,00 |
DRV8350RSRGZT Visão geral
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.
Alternativas drop-in para DRV8350RSRGZT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com DRV8350RSRGZT (mesmo formato e footprint) — diferindo em MSL Level, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
DRV8350RSRGZR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DRV8350RHRGZR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DRV8353RSRGZR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DRV8353RHRGZT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DRV8350HRTVT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DRV8308RHAT
✅ Drop-In✓ Em estoque
$4.04 / unidade
Ver ficha técnica →DRV8350RSRGZT Classificações máximas e características elétricas
| Topologia | 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) |
| Interface | SPI (configuration + telemetry) |
| Faixa de tensão de saída | Drives external N-FET half-bridges |
| Adjustable Slew Rate | Yes (4 settings via SPI) |
| VGS Handshake / Shoot-Through Protection | Yes |
| Faixa de temperatura de operação | -40 C to +125 C |
| Encapsulamento | VQFN-48 (RGZ) 7x7 mm with exposed pad |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Configuração de pinos do DRV8350RSRGZT
| Pino 1 | VM — Main power supply, 9-100V |
| Pino 2 | GHG_A — Gate high-side A drive |
| Pino 3 | SH_A — Source high-side A / bootstrap return |
| Pino 4 | BST_A — Bootstrap A |
| Pino 5 | GLG_A — Gate low-side A drive |
| Pino 6 | SLG_A — Source low-side A / shunt - |
| Pino 7 | SPA — Shunt amp A input + |
| Pino 8 | SNA — Shunt amp A input - |
| Pino 9 | SOA — Shunt amp A output |
| Pino 10 | GHG_B — Gate high-side B drive |
| Pino 11 | SH_B — Source high-side B / bootstrap return |
| Pino 12 | BST_B — Bootstrap B |
| Pino 13 | GLG_B — Gate low-side B drive |
| Pino 14 | SLG_B — Source low-side B / shunt - |
| Pino 15 | SPB — Shunt amp B input + |
| Pino 16 | SNB — Shunt amp B input - |
| Pino 17 | SOB — Shunt amp B output |
| Pino 18 | GHG_C — Gate high-side C drive |
| Pino 19 | SH_C — Source high-side C / bootstrap return |
| Pino 20 | BST_C — Bootstrap C |
| Pino 21 | GLG_C — Gate low-side C drive |
| Pino 22 | SLG_C — Source low-side C / shunt - |
| Pino 23 | SPC — Shunt amp C input + |
| Pino 24 | SNC — Shunt amp C input - |
| Pino 25 | SOC — Shunt amp C output |
| Pino 26 | nFAULT — Fault indicator (open-drain, active low) |
| Pino 27 | nSCS — SPI chip-select (active low) |
| Pino 28 | SCLK — SPI clock |
| Pino 29 | SDI — SPI data input |
| Pino 30 | SDO — SPI data output |
| Pino 31 | EN_DRV — Enable driver (active high) |
| Pino 32 | EN_BUCK — Enable buck regulator (active high) |
| Pino 33 | BST_BUCK — Bootstrap for buck |
| Pino 34 | SW_BUCK — Buck switch node |
| Pino 35 | BK_FB — Buck feedback (sets 3.3V/5V) |
| Pino 36 | BK_COMP — Buck compensation |
| Pino 37 | BK_PGND — Buck power ground |
| Pino 38 | BK_VIN — Buck input supply |
| Pino 39 | VDD — Internal 3.3V LDO output |
| Pino 40 | AVDD — Analog supply (decouple) |
| Pino 41 | DVDD — Digital supply (decouple) |
| Pino 42 | nSCS_BUCK — Buck soft-start cap |
| Pino 43 | IDRIVE — Reference for gate drive (or SPI-controlled) |
| Pino 44 | VREF — Reference voltage output |
| Pino 45 | NC — Not connected (per datasheet) |
| Pino 46 | NC — Not connected (per datasheet) |
| Pino 47 | AGND — Analog ground |
| Pino 48 | PGND — Power ground |
Aplicações típicas
DRV8350RSRGZT é adequado para 6 aplicaçãos: 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).
Recomendado
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).
Recomendado
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).
Recomendado
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).
Recomendado
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).
Recomendado
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).
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DRV8350RSRGZT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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) |
Principais diferenciais
- Integrated buck regulator eliminates auxiliary supply (vs DRV8301DCAR (separate buck required))
- Triple low-side current-shunt amplifiers vs external op-amps (vs DRV8323RSRGZR (no integrated amps))
- VGS handshake shoot-through prevention (vs DRV8308RHAT (standalone controller))
Notas de projeto
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.
Informações de conformidade
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.
